RADIO CONTROL ELECTRICS THIS MONTHS topics include information commercial version End Charge Beeper End Charge Beeper upgrade some comment tiny E-RC End Charge Beeper March 1997 column being considered potential product EOCB simple device used conjunction present motor battery charger audibly signal charger has shut down Im happy announce availability ready-built version product name Lii Beep available New Creations RIC Box 496 Willis TX 77378 Tel 409 856 4630 price $1995 Lil Beep manufactured John McCullough AULD fame Raleigh NC John has customized printed circuit board device somewhat smaller published version understand ready-built version already very popular may end up waiting list have no association business venture Ive trying solve problem associated popularity original End-Of-Charge Beeper Some flight lines have EOCBs use modelers cant tell beep have modified basic design allow some distinguishing sounds help alleviate problem design changes permit easily modify existing EOCB has built according original drawings can build new version scratch version comes new name End-Of-Charge Beeper-Beeper EOCBB EOCBB little complicated first version affords four distinct sound options can choose yours during construction change sound component change later fact new sound option can retrofitted original version just component value change Ill describe 0002 Ic 014 0100100 100010 CIO 09dI00190PS 200 0 20000000 0700 9010200000 CO 411012 OlE 10000 0100000010 d01010100100 p0001010 00000 O7EoOOIIOOO 001011003000 0o001000 O2000012 END OF CHARGE BEEPER BEEPER simple choice first Its best have March 97 column hand proceed Resistor R5 capacitor C5 function sustain beep sound short period time usually few seconds actual time does vary somewhat cell count battery under charge longer cells up point beep duration youve become used packs normally charge can now changed value change R5 original design value R5 33000 ohms 33K Increasing causes duration beep extend proportion suggest change 100K will result beep duration about three times longer used Thus least two chargers can easily distinguished can continue increase resistance up about 220K nominal six-times tone length tends get annoying some may want experiment in-between values Again change can easily retrofitted existing EOCB something came about part new EOCBB design process OOISIII1010ICIO1001001060FOREICIOIICOOcCeIO 0I01900001100000 CO TTo\ 71 ftRo 00B000 002 V 010324Cl P 0 005011000 BA INo 21ClRB020700 IN IWO ARE 0020 00004 CATALOG NUMBERS 0110 0270-1001 102050 2000000 1030100 OHMS 271-1012 000010 270-0005 0100001270-1347 01007002RIO4010271-1022 00000112202711000 RIO 2210271-1020-- 00 070 201 1002 Cl 03 57 T 272-0020 02 22 oF 272-1020 0102002 202004 0010003020 270-2200 7 14 IC TOP VIEW DETAIL CO 00320 270-17010 27 1N0742 276-562 MISC PARTS BEEPER 272-005101 PC BOARD 276 108 WIRE AS NEEDED OPTIONAL 10 PIN IC SOCKET 2700000 00 TOP VIEW BOARD ASSV END OF CHARGE BEEPER BEEPER EOCBB actually new circuit comprises circuitry original design some parts added purpose additions change original beep sound pulsed beep sound resulting beeping beeperhence new name Experimentation suggests two audio options easy distinguish Basically choice between faster beep slower beep either case new value R5 K used shown drawings allows plenty time hear new tone format Obviously benefits variability best realized some cooperative effort between usual fellow fliers new EOCBB design shown accompanying drawings photos Note original part designations have retained newly added parts numbered sequentially beyond original designations Like original newly added parts available Radio Shack writing may recall original design based LM324 quad operational amplifier two amplifier sections being germane circuit operation remaining two sections simply wired convenience bad design practice allow unused section float EOCBB makes functional use previously orphaned op-amp sections newly used section shown IC 1-2 quick comparison original new schematics will clarify original presentation showed assembly drawing schematic drawing technically correct did agree other pseudo-error discussed 7/97 column Readers built EOCBs assembly drawing schematic produced successful beepers new drawings presented believed correct agreement basic circuitry new EOCBB operates just like original o 3/97 column description can applied hereto point difference occurs op-amp 86 Model Aviation nnings new EOCBB should 19 wires board stage Note missing photo completed working EOCBB Compare photo 3/97 ModelAviationt version has few parts section IC 1-2 JCl-2 now configured low-frequency square-wave oscillator produces several-cycle-per-second waveform waveform frequency can varied resistor RIO two values recommended shown value 22K produces square wave about 12 cycles per second 47K value yields about 6 cycles per second low-frequency square wave applied newly added transistor Q3 turning off corresponding rate Q3 wired gate original beeper control transistor Q2 Q2 works just like always did now additionally gated Q3 square waveform rate combination results beep-beep-beep-beep sound lasting duration established R5 Existing EOCBs can converted EOCBBs carefully removing jumper wire Q2 emitter ICi pins 1256 7 Relocate R6 replace R5 Install additional new wire jumpers locations shown used short component lead cutoffs shorter jumpers longer jumpers best made insulated wire such Ace R/C wire smallgauge speaker wire wires removed ordinary household telephone cable Stranded flexible solid wire OK Install Q3 C3 resistors R8-R13 Pick preference RlO can change associated sounds later wish Carefully check assure jumpers component leads touching like use lens task ready check out operation upgraded EOCBB Use same procedures discussed 3/97 issue Assembly suggestions begin repeat encouragement read original 3/97 columncompletely Some modelers apparently didnt resulted some initial disappointment most-common assembly errors missing hidden wire jumpersthe IC socket location back board Radio Shack beeper Another common oversight cutting hole board conductors shownthis important New beepers built scratch best done follows Cut holeboard size shown sure cut conductors shown Xs assembly drawing Install two hidden jumpersthe under forthcoming IC socket the conductor side board beeper location solder EMS SERVO REVERSER Works AM FM PCM os on4 5 cells Install line sewn servo will wove opposite directisol 50 1750 25 weight 25 ouncel EMS SR 2 connector $1495 w ed connectors $1995 EMS SR-2Y wired leg Y harness $2250 GEAR AND DOOR SEQUENCER wicroprocessor driver device controls seguences lavding gear wechaniow landing gear doors Works air and/or servo controlled systems Gear servo door sews travel time individually adjustable full speed 10 seconds Gear doors may remain open ala P-Si close after lowering gear ala P-47 Gear doesnt move antil doors travel fully completed unit isa retract system Sine 15 vi So 75 Less 1 ounce Includes servo connector receiver $4495 Additional EMS Glitch Stop/Noise Trap GS-l $1250 Glitch Stop/Noise Trap Y Harness GS-1Y 1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Flight Timer2995 NEW Stop-Go-LightTh.2495 Gear Door Cycler 5 Channel Failsafe 3895 Opto-Isolated Electronic Switch 3995 Dual E-Switch. Snitch3995 AutoretractforU/C NEW Multi-Mode Electronic Mixer4495 Glitch Buster/B Channel Opto-Isolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor lltralight ESC 4495 NEW MicroMAX Speed 400 ESC wIBEC 5995 Electronic Model Systems 22605 E La Palma Ave Suite 518 Yorba Linda CA 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjornarcorn @emsjornalcom ULTIMATE BATTERY BA CKER BEST way insure reliable power yoar model Use two packs Works standard 4 cell 5 cull GEL-CELL packs Battery packs can different capacity like 1200 600 1 5 v 1 5 v 75 weight B ounce $4995 wired connectors $5995 GLOW DRIVER An opto-isolatud glow driver switch ensares agaivot radio noise ON point easily adjustable user small screwdriver Size 150 150 75 Less 1 ounce Supplied glow-ping wire connector User osyplies own NIGAD haBery Includes servo connector receiver $4495 Jomar Products NEW MiniMAX 40 ESC w/BEC Brake$9995 MiniMAX Original ESC w/Brake7995 Sport MAX ESC 8995 SM-4 ESC9995 Heavy Duly Reversible Nautical Throttle8995 BBC-l Ball Bearing Conversion 4 Futaba2595 BBC-2 Ball Bearing Conversion Futaba695 BBC-3 Ball Bearing Conversion 4 Airironics 2595 BBC-4 Ball Bearing Conversion 1 Airtronics. 695 BBC-5 Ball Bearing Only JR etc 4 1995 BBC-6 Ball Bearing Only JR etc 1 Aramid Kevlar 29 Rigging Cable 20 1000 #22 Servo Wire 3 cond 10 Fut JR Colors #22 Battery Wire -2 conductor 10 EMS/SANYO Battery Packs L EMS Connectors Extensions CALL 4 Cycle EDSONsis mobar moemt SW ow sOdivene ngns. AdjustabirS12A6S1*6 FitsFITS MotorSAITO4045SAITO6610120 OSMAX40 6090OSMAXBOto120 ENYA40 60ENYAOOto120 HP14060WEBRASOlo 120 OTHERS40 6080OThERS80 120 NO DRILLING ThPPING REQUIRED Send Free Catalog & Discount Sheet SP PARTS AVAILABLE. --- 10% DISCOUI4T fl 5MakeCheck Payable ToCall 973-661-2310 Enterprise lTSpemPbm N.L 07110 Add 5400 Shipping & Handling OEALERS.JI OlskbEara anl uupply.OADER DIRECT jumper under socketthis will done later socket installed Install remaining jumper wiresthe short bare ones longer insulated onesas shown Count jumpers should 19 14 short hare jumpers five longer insulated jumpers should visible actually missing photocan find Install IC socket Note sockets have orientation marks similar ICFs plugged socket marks convenient reference electrically important However orientation marks IC itself importantso wary time comes Continue resistors Zi watch polarity transistors Pay attention orientation latter Install capacitors again watch polarity Install Radio Shack beeper unit noting also has polarity now ready clean up assembly install ICI correctly test out Again original reference should honored Assuming youve successfully completed new End Charge Beeper Beeper need either install inside charger use inline charger-to-battery connections latter option illustrated 7/97 column enjoyed original EOCB should certainly like new versionespecially have beep intensive flightline modelers have successfully built EOCB very happy itincluding some never built anything electronic before youre still reluctant get some help local electronics hobbyistalmost RC club has folks No dont build em salesony Also cannot say EOCBB will produced commercially EOCB has Although Ive enjoyed hobby nearly five decades have seen really havent always something new creative minds hands fellow hobbyistslike tiny E-RC 1997 KRC offered event Smallest Flyable Model won Cecil Wethy Miami FL 41/2-inch-wingspan flying-wing design weighing 3/4 ounce three-volt radio geared motor actually great deal tiny RC activity going Electric power CO2 Flying Models has bimonthly column Dick Miller dedicated speciality Another dedicated publication Cloud Nine RC newsletter published John Worth 4326 Andes Dr Fairfax VA 22030 Tel/Fax [703] 273-0607 newsletter jammed lots tiny RC info Indoor outdoor flying newsletter very low-cost several years back issues available John can also supply much stuff needed within speciality Please include SASE correspondence youd like reply Happy F-Landings everyone odel Aviation 4
Edition: Model Aviation - 1998/04
Page Numbers: 86, 89, 90
Edition: Model Aviation - 1998/04
Page Numbers: 86, 89, 90
RADIO CONTROL ELECTRICS THIS MONTHS topics include information commercial version End Charge Beeper End Charge Beeper upgrade some comment tiny E-RC End Charge Beeper March 1997 column being considered potential product EOCB simple device used conjunction present motor battery charger audibly signal charger has shut down Im happy announce availability ready-built version product name Lii Beep available New Creations RIC Box 496 Willis TX 77378 Tel 409 856 4630 price $1995 Lil Beep manufactured John McCullough AULD fame Raleigh NC John has customized printed circuit board device somewhat smaller published version understand ready-built version already very popular may end up waiting list have no association business venture Ive trying solve problem associated popularity original End-Of-Charge Beeper Some flight lines have EOCBs use modelers cant tell beep have modified basic design allow some distinguishing sounds help alleviate problem design changes permit easily modify existing EOCB has built according original drawings can build new version scratch version comes new name End-Of-Charge Beeper-Beeper EOCBB EOCBB little complicated first version affords four distinct sound options can choose yours during construction change sound component change later fact new sound option can retrofitted original version just component value change Ill describe 0002 Ic 014 0100100 100010 CIO 09dI00190PS 200 0 20000000 0700 9010200000 CO 411012 OlE 10000 0100000010 d01010100100 p0001010 00000 O7EoOOIIOOO 001011003000 0o001000 O2000012 END OF CHARGE BEEPER BEEPER simple choice first Its best have March 97 column hand proceed Resistor R5 capacitor C5 function sustain beep sound short period time usually few seconds actual time does vary somewhat cell count battery under charge longer cells up point beep duration youve become used packs normally charge can now changed value change R5 original design value R5 33000 ohms 33K Increasing causes duration beep extend proportion suggest change 100K will result beep duration about three times longer used Thus least two chargers can easily distinguished can continue increase resistance up about 220K nominal six-times tone length tends get annoying some may want experiment in-between values Again change can easily retrofitted existing EOCB something came about part new EOCBB design process OOISIII1010ICIO1001001060FOREICIOIICOOcCeIO 0I01900001100000 CO TTo\ 71 ftRo 00B000 002 V 010324Cl P 0 005011000 BA INo 21ClRB020700 IN IWO ARE 0020 00004 CATALOG NUMBERS 0110 0270-1001 102050 2000000 1030100 OHMS 271-1012 000010 270-0005 0100001270-1347 01007002RIO4010271-1022 00000112202711000 RIO 2210271-1020-- 00 070 201 1002 Cl 03 57 T 272-0020 02 22 oF 272-1020 0102002 202004 0010003020 270-2200 7 14 IC TOP VIEW DETAIL CO 00320 270-17010 27 1N0742 276-562 MISC PARTS BEEPER 272-005101 PC BOARD 276 108 WIRE AS NEEDED OPTIONAL 10 PIN IC SOCKET 2700000 00 TOP VIEW BOARD ASSV END OF CHARGE BEEPER BEEPER EOCBB actually new circuit comprises circuitry original design some parts added purpose additions change original beep sound pulsed beep sound resulting beeping beeperhence new name Experimentation suggests two audio options easy distinguish Basically choice between faster beep slower beep either case new value R5 K used shown drawings allows plenty time hear new tone format Obviously benefits variability best realized some cooperative effort between usual fellow fliers new EOCBB design shown accompanying drawings photos Note original part designations have retained newly added parts numbered sequentially beyond original designations Like original newly added parts available Radio Shack writing may recall original design based LM324 quad operational amplifier two amplifier sections being germane circuit operation remaining two sections simply wired convenience bad design practice allow unused section float EOCBB makes functional use previously orphaned op-amp sections newly used section shown IC 1-2 quick comparison original new schematics will clarify original presentation showed assembly drawing schematic drawing technically correct did agree other pseudo-error discussed 7/97 column Readers built EOCBs assembly drawing schematic produced successful beepers new drawings presented believed correct agreement basic circuitry new EOCBB operates just like original o 3/97 column description can applied hereto point difference occurs op-amp 86 Model Aviation nnings new EOCBB should 19 wires board stage Note missing photo completed working EOCBB Compare photo 3/97 ModelAviationt version has few parts section IC 1-2 JCl-2 now configured low-frequency square-wave oscillator produces several-cycle-per-second waveform waveform frequency can varied resistor RIO two values recommended shown value 22K produces square wave about 12 cycles per second 47K value yields about 6 cycles per second low-frequency square wave applied newly added transistor Q3 turning off corresponding rate Q3 wired gate original beeper control transistor Q2 Q2 works just like always did now additionally gated Q3 square waveform rate combination results beep-beep-beep-beep sound lasting duration established R5 Existing EOCBs can converted EOCBBs carefully removing jumper wire Q2 emitter ICi pins 1256 7 Relocate R6 replace R5 Install additional new wire jumpers locations shown used short component lead cutoffs shorter jumpers longer jumpers best made insulated wire such Ace R/C wire smallgauge speaker wire wires removed ordinary household telephone cable Stranded flexible solid wire OK Install Q3 C3 resistors R8-R13 Pick preference RlO can change associated sounds later wish Carefully check assure jumpers component leads touching like use lens task ready check out operation upgraded EOCBB Use same procedures discussed 3/97 issue Assembly suggestions begin repeat encouragement read original 3/97 columncompletely Some modelers apparently didnt resulted some initial disappointment most-common assembly errors missing hidden wire jumpersthe IC socket location back board Radio Shack beeper Another common oversight cutting hole board conductors shownthis important New beepers built scratch best done follows Cut holeboard size shown sure cut conductors shown Xs assembly drawing Install two hidden jumpersthe under forthcoming IC socket the conductor side board beeper location solder EMS SERVO REVERSER Works AM FM PCM os on4 5 cells Install line sewn servo will wove opposite directisol 50 1750 25 weight 25 ouncel EMS SR 2 connector $1495 w ed connectors $1995 EMS SR-2Y wired leg Y harness $2250 GEAR AND DOOR SEQUENCER wicroprocessor driver device controls seguences lavding gear wechaniow landing gear doors Works air and/or servo controlled systems Gear servo door sews travel time individually adjustable full speed 10 seconds Gear doors may remain open ala P-Si close after lowering gear ala P-47 Gear doesnt move antil doors travel fully completed unit isa retract system Sine 15 vi So 75 Less 1 ounce Includes servo connector receiver $4495 Additional EMS Glitch Stop/Noise Trap GS-l $1250 Glitch Stop/Noise Trap Y Harness GS-1Y 1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Flight Timer2995 NEW Stop-Go-LightTh.2495 Gear Door Cycler 5 Channel Failsafe 3895 Opto-Isolated Electronic Switch 3995 Dual E-Switch. Snitch3995 AutoretractforU/C NEW Multi-Mode Electronic Mixer4495 Glitch Buster/B Channel Opto-Isolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor lltralight ESC 4495 NEW MicroMAX Speed 400 ESC wIBEC 5995 Electronic Model Systems 22605 E La Palma Ave Suite 518 Yorba Linda CA 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjornarcorn @emsjornalcom ULTIMATE BATTERY BA CKER BEST way insure reliable power yoar model Use two packs Works standard 4 cell 5 cull GEL-CELL packs Battery packs can different capacity like 1200 600 1 5 v 1 5 v 75 weight B ounce $4995 wired connectors $5995 GLOW DRIVER An opto-isolatud glow driver switch ensares agaivot radio noise ON point easily adjustable user small screwdriver Size 150 150 75 Less 1 ounce Supplied glow-ping wire connector User osyplies own NIGAD haBery Includes servo connector receiver $4495 Jomar Products NEW MiniMAX 40 ESC w/BEC Brake$9995 MiniMAX Original ESC w/Brake7995 Sport MAX ESC 8995 SM-4 ESC9995 Heavy Duly Reversible Nautical Throttle8995 BBC-l Ball Bearing Conversion 4 Futaba2595 BBC-2 Ball Bearing Conversion Futaba695 BBC-3 Ball Bearing Conversion 4 Airironics 2595 BBC-4 Ball Bearing Conversion 1 Airtronics. 695 BBC-5 Ball Bearing Only JR etc 4 1995 BBC-6 Ball Bearing Only JR etc 1 Aramid Kevlar 29 Rigging Cable 20 1000 #22 Servo Wire 3 cond 10 Fut JR Colors #22 Battery Wire -2 conductor 10 EMS/SANYO Battery Packs L EMS Connectors Extensions CALL 4 Cycle EDSONsis mobar moemt SW ow sOdivene ngns. AdjustabirS12A6S1*6 FitsFITS MotorSAITO4045SAITO6610120 OSMAX40 6090OSMAXBOto120 ENYA40 60ENYAOOto120 HP14060WEBRASOlo 120 OTHERS40 6080OThERS80 120 NO DRILLING ThPPING REQUIRED Send Free Catalog & Discount Sheet SP PARTS AVAILABLE. --- 10% DISCOUI4T fl 5MakeCheck Payable ToCall 973-661-2310 Enterprise lTSpemPbm N.L 07110 Add 5400 Shipping & Handling OEALERS.JI OlskbEara anl uupply.OADER DIRECT jumper under socketthis will done later socket installed Install remaining jumper wiresthe short bare ones longer insulated onesas shown Count jumpers should 19 14 short hare jumpers five longer insulated jumpers should visible actually missing photocan find Install IC socket Note sockets have orientation marks similar ICFs plugged socket marks convenient reference electrically important However orientation marks IC itself importantso wary time comes Continue resistors Zi watch polarity transistors Pay attention orientation latter Install capacitors again watch polarity Install Radio Shack beeper unit noting also has polarity now ready clean up assembly install ICI correctly test out Again original reference should honored Assuming youve successfully completed new End Charge Beeper Beeper need either install inside charger use inline charger-to-battery connections latter option illustrated 7/97 column enjoyed original EOCB should certainly like new versionespecially have beep intensive flightline modelers have successfully built EOCB very happy itincluding some never built anything electronic before youre still reluctant get some help local electronics hobbyistalmost RC club has folks No dont build em salesony Also cannot say EOCBB will produced commercially EOCB has Although Ive enjoyed hobby nearly five decades have seen really havent always something new creative minds hands fellow hobbyistslike tiny E-RC 1997 KRC offered event Smallest Flyable Model won Cecil Wethy Miami FL 41/2-inch-wingspan flying-wing design weighing 3/4 ounce three-volt radio geared motor actually great deal tiny RC activity going Electric power CO2 Flying Models has bimonthly column Dick Miller dedicated speciality Another dedicated publication Cloud Nine RC newsletter published John Worth 4326 Andes Dr Fairfax VA 22030 Tel/Fax [703] 273-0607 newsletter jammed lots tiny RC info Indoor outdoor flying newsletter very low-cost several years back issues available John can also supply much stuff needed within speciality Please include SASE correspondence youd like reply Happy F-Landings everyone odel Aviation 4
Edition: Model Aviation - 1998/04
Page Numbers: 86, 89, 90
RADIO CONTROL ELECTRICS THIS MONTHS topics include information commercial version End Charge Beeper End Charge Beeper upgrade some comment tiny E-RC End Charge Beeper March 1997 column being considered potential product EOCB simple device used conjunction present motor battery charger audibly signal charger has shut down Im happy announce availability ready-built version product name Lii Beep available New Creations RIC Box 496 Willis TX 77378 Tel 409 856 4630 price $1995 Lil Beep manufactured John McCullough AULD fame Raleigh NC John has customized printed circuit board device somewhat smaller published version understand ready-built version already very popular may end up waiting list have no association business venture Ive trying solve problem associated popularity original End-Of-Charge Beeper Some flight lines have EOCBs use modelers cant tell beep have modified basic design allow some distinguishing sounds help alleviate problem design changes permit easily modify existing EOCB has built according original drawings can build new version scratch version comes new name End-Of-Charge Beeper-Beeper EOCBB EOCBB little complicated first version affords four distinct sound options can choose yours during construction change sound component change later fact new sound option can retrofitted original version just component value change Ill describe 0002 Ic 014 0100100 100010 CIO 09dI00190PS 200 0 20000000 0700 9010200000 CO 411012 OlE 10000 0100000010 d01010100100 p0001010 00000 O7EoOOIIOOO 001011003000 0o001000 O2000012 END OF CHARGE BEEPER BEEPER simple choice first Its best have March 97 column hand proceed Resistor R5 capacitor C5 function sustain beep sound short period time usually few seconds actual time does vary somewhat cell count battery under charge longer cells up point beep duration youve become used packs normally charge can now changed value change R5 original design value R5 33000 ohms 33K Increasing causes duration beep extend proportion suggest change 100K will result beep duration about three times longer used Thus least two chargers can easily distinguished can continue increase resistance up about 220K nominal six-times tone length tends get annoying some may want experiment in-between values Again change can easily retrofitted existing EOCB something came about part new EOCBB design process OOISIII1010ICIO1001001060FOREICIOIICOOcCeIO 0I01900001100000 CO TTo\ 71 ftRo 00B000 002 V 010324Cl P 0 005011000 BA INo 21ClRB020700 IN IWO ARE 0020 00004 CATALOG NUMBERS 0110 0270-1001 102050 2000000 1030100 OHMS 271-1012 000010 270-0005 0100001270-1347 01007002RIO4010271-1022 00000112202711000 RIO 2210271-1020-- 00 070 201 1002 Cl 03 57 T 272-0020 02 22 oF 272-1020 0102002 202004 0010003020 270-2200 7 14 IC TOP VIEW DETAIL CO 00320 270-17010 27 1N0742 276-562 MISC PARTS BEEPER 272-005101 PC BOARD 276 108 WIRE AS NEEDED OPTIONAL 10 PIN IC SOCKET 2700000 00 TOP VIEW BOARD ASSV END OF CHARGE BEEPER BEEPER EOCBB actually new circuit comprises circuitry original design some parts added purpose additions change original beep sound pulsed beep sound resulting beeping beeperhence new name Experimentation suggests two audio options easy distinguish Basically choice between faster beep slower beep either case new value R5 K used shown drawings allows plenty time hear new tone format Obviously benefits variability best realized some cooperative effort between usual fellow fliers new EOCBB design shown accompanying drawings photos Note original part designations have retained newly added parts numbered sequentially beyond original designations Like original newly added parts available Radio Shack writing may recall original design based LM324 quad operational amplifier two amplifier sections being germane circuit operation remaining two sections simply wired convenience bad design practice allow unused section float EOCBB makes functional use previously orphaned op-amp sections newly used section shown IC 1-2 quick comparison original new schematics will clarify original presentation showed assembly drawing schematic drawing technically correct did agree other pseudo-error discussed 7/97 column Readers built EOCBs assembly drawing schematic produced successful beepers new drawings presented believed correct agreement basic circuitry new EOCBB operates just like original o 3/97 column description can applied hereto point difference occurs op-amp 86 Model Aviation nnings new EOCBB should 19 wires board stage Note missing photo completed working EOCBB Compare photo 3/97 ModelAviationt version has few parts section IC 1-2 JCl-2 now configured low-frequency square-wave oscillator produces several-cycle-per-second waveform waveform frequency can varied resistor RIO two values recommended shown value 22K produces square wave about 12 cycles per second 47K value yields about 6 cycles per second low-frequency square wave applied newly added transistor Q3 turning off corresponding rate Q3 wired gate original beeper control transistor Q2 Q2 works just like always did now additionally gated Q3 square waveform rate combination results beep-beep-beep-beep sound lasting duration established R5 Existing EOCBs can converted EOCBBs carefully removing jumper wire Q2 emitter ICi pins 1256 7 Relocate R6 replace R5 Install additional new wire jumpers locations shown used short component lead cutoffs shorter jumpers longer jumpers best made insulated wire such Ace R/C wire smallgauge speaker wire wires removed ordinary household telephone cable Stranded flexible solid wire OK Install Q3 C3 resistors R8-R13 Pick preference RlO can change associated sounds later wish Carefully check assure jumpers component leads touching like use lens task ready check out operation upgraded EOCBB Use same procedures discussed 3/97 issue Assembly suggestions begin repeat encouragement read original 3/97 columncompletely Some modelers apparently didnt resulted some initial disappointment most-common assembly errors missing hidden wire jumpersthe IC socket location back board Radio Shack beeper Another common oversight cutting hole board conductors shownthis important New beepers built scratch best done follows Cut holeboard size shown sure cut conductors shown Xs assembly drawing Install two hidden jumpersthe under forthcoming IC socket the conductor side board beeper location solder EMS SERVO REVERSER Works AM FM PCM os on4 5 cells Install line sewn servo will wove opposite directisol 50 1750 25 weight 25 ouncel EMS SR 2 connector $1495 w ed connectors $1995 EMS SR-2Y wired leg Y harness $2250 GEAR AND DOOR SEQUENCER wicroprocessor driver device controls seguences lavding gear wechaniow landing gear doors Works air and/or servo controlled systems Gear servo door sews travel time individually adjustable full speed 10 seconds Gear doors may remain open ala P-Si close after lowering gear ala P-47 Gear doesnt move antil doors travel fully completed unit isa retract system Sine 15 vi So 75 Less 1 ounce Includes servo connector receiver $4495 Additional EMS Glitch Stop/Noise Trap GS-l $1250 Glitch Stop/Noise Trap Y Harness GS-1Y 1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Flight Timer2995 NEW Stop-Go-LightTh.2495 Gear Door Cycler 5 Channel Failsafe 3895 Opto-Isolated Electronic Switch 3995 Dual E-Switch. Snitch3995 AutoretractforU/C NEW Multi-Mode Electronic Mixer4495 Glitch Buster/B Channel Opto-Isolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor lltralight ESC 4495 NEW MicroMAX Speed 400 ESC wIBEC 5995 Electronic Model Systems 22605 E La Palma Ave Suite 518 Yorba Linda CA 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjornarcorn @emsjornalcom ULTIMATE BATTERY BA CKER BEST way insure reliable power yoar model Use two packs Works standard 4 cell 5 cull GEL-CELL packs Battery packs can different capacity like 1200 600 1 5 v 1 5 v 75 weight B ounce $4995 wired connectors $5995 GLOW DRIVER An opto-isolatud glow driver switch ensares agaivot radio noise ON point easily adjustable user small screwdriver Size 150 150 75 Less 1 ounce Supplied glow-ping wire connector User osyplies own NIGAD haBery Includes servo connector receiver $4495 Jomar Products NEW MiniMAX 40 ESC w/BEC Brake$9995 MiniMAX Original ESC w/Brake7995 Sport MAX ESC 8995 SM-4 ESC9995 Heavy Duly Reversible Nautical Throttle8995 BBC-l Ball Bearing Conversion 4 Futaba2595 BBC-2 Ball Bearing Conversion Futaba695 BBC-3 Ball Bearing Conversion 4 Airironics 2595 BBC-4 Ball Bearing Conversion 1 Airtronics. 695 BBC-5 Ball Bearing Only JR etc 4 1995 BBC-6 Ball Bearing Only JR etc 1 Aramid Kevlar 29 Rigging Cable 20 1000 #22 Servo Wire 3 cond 10 Fut JR Colors #22 Battery Wire -2 conductor 10 EMS/SANYO Battery Packs L EMS Connectors Extensions CALL 4 Cycle EDSONsis mobar moemt SW ow sOdivene ngns. AdjustabirS12A6S1*6 FitsFITS MotorSAITO4045SAITO6610120 OSMAX40 6090OSMAXBOto120 ENYA40 60ENYAOOto120 HP14060WEBRASOlo 120 OTHERS40 6080OThERS80 120 NO DRILLING ThPPING REQUIRED Send Free Catalog & Discount Sheet SP PARTS AVAILABLE. --- 10% DISCOUI4T fl 5MakeCheck Payable ToCall 973-661-2310 Enterprise lTSpemPbm N.L 07110 Add 5400 Shipping & Handling OEALERS.JI OlskbEara anl uupply.OADER DIRECT jumper under socketthis will done later socket installed Install remaining jumper wiresthe short bare ones longer insulated onesas shown Count jumpers should 19 14 short hare jumpers five longer insulated jumpers should visible actually missing photocan find Install IC socket Note sockets have orientation marks similar ICFs plugged socket marks convenient reference electrically important However orientation marks IC itself importantso wary time comes Continue resistors Zi watch polarity transistors Pay attention orientation latter Install capacitors again watch polarity Install Radio Shack beeper unit noting also has polarity now ready clean up assembly install ICI correctly test out Again original reference should honored Assuming youve successfully completed new End Charge Beeper Beeper need either install inside charger use inline charger-to-battery connections latter option illustrated 7/97 column enjoyed original EOCB should certainly like new versionespecially have beep intensive flightline modelers have successfully built EOCB very happy itincluding some never built anything electronic before youre still reluctant get some help local electronics hobbyistalmost RC club has folks No dont build em salesony Also cannot say EOCBB will produced commercially EOCB has Although Ive enjoyed hobby nearly five decades have seen really havent always something new creative minds hands fellow hobbyistslike tiny E-RC 1997 KRC offered event Smallest Flyable Model won Cecil Wethy Miami FL 41/2-inch-wingspan flying-wing design weighing 3/4 ounce three-volt radio geared motor actually great deal tiny RC activity going Electric power CO2 Flying Models has bimonthly column Dick Miller dedicated speciality Another dedicated publication Cloud Nine RC newsletter published John Worth 4326 Andes Dr Fairfax VA 22030 Tel/Fax [703] 273-0607 newsletter jammed lots tiny RC info Indoor outdoor flying newsletter very low-cost several years back issues available John can also supply much stuff needed within speciality Please include SASE correspondence youd like reply Happy F-Landings everyone odel Aviation 4
