1F~EIF~N EASY-TO-BUILD PROJECT THAT CAN TRICKLE-CHARGE AS MANY TEN BATTERY PACKS SIMULTANEOUSLY I nElectric flying number simple tricks can really make I difference performance charge Ni-Cd pack until peaks gets warm fast charger put trickle charge overnight before go flying charger works well quickcharge several packs trickle charge multiple packs days flying build Ni-Cd Topper multiple-output trickle charger simply adding components 10 charging outputs possible As shown drawing device rather simple consisting transformer rectifiers current-reducing bulbs necessary connections container parts used prototype available through Radio Shack other electrical suppliers parts list included end article equivalent components should work well photo show parts laid out assembly parts layout critical however strictly AC/DC conversion output must have its own bridge 1 FUSE V AcI AC SWITCH INDICATOR LIGHT rectifier isolate Ni-Cd packs another way several six- seven-cell packs can trickle-charged simultaneously interaction Should builder wish charge larger packs higher-output voltage transformer will required specified transformer has rated output 126 volts 12 amperes sufficient up 10 outputs 1-ampere-rated fuse protects things case component failure other parts over-rated tasks insure long efficient life maintaining low cost Items such on-off switch indicator light required convenient connecting plugs must match type connectors packs Tamiya connectors shown certain double-check polarity before install output limited approximately 40 milliamperes less bulbs series output means acks can 11 trickle ndefinitely ithout ming hem PLUG will find Ni-Cd Figure Ho 1Topper will help keep /J~\ /I\ /1\ ADDITIONAL SEC I-RICI~REC\UP TOlS j\fr~ASDESIRED UG gg UJ PLUGPLUG NI-CAD TOPPER SCHEMATIC Ni-Cd packs performing peak efficiency U Glenn B Glenn Bolick 10256 Stratford Hall Ct Mechanicsville VA 23111-5162 Component List Radio Shack part numbers given 270-224 Deluxe Project Case 1 273-1 352A Transformer 126 volts 12 amps 1 276-1161A 276-1152 Silicon Bridge Rectifier 100 volts 1 amp 4-10 desired 272-334A Micro 12-Volt Light two per package 60 mA 2-5 packages desired 272-33 lB Hi Bright 12-Volt Light two per package 1 Tamiya similar plugs 4-10 desired fuse holder 1-am pere fuse 1 solder switch 1 AC cord 1 2 x 3-inch perforated electronic board 1 #22 larger wire 5 feet d Toppers parts easily obtained Radio Shack other electrical parts suppliers
