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building a battery eliminator
#7

Ive built a few homebrew battery eliminators before. Seems there are some plans (schemats) avail online ( via google search) to build one similar to what AES sells. Seems radio-shack used to sell the needed transformer for about $4. Dont know if they still have it avail?
If you look closely at your broken socket, you can trace 2 of the wires back to chassis ground. Those are your radios (A- & B-) solder them in together to chassis, your done on the (-) hookup on chassis. You will need separate + leads to your battery-eliminator if you build one. You will need 1.5 volts dc for your tubes filaments string (A +), and 90v dc for (B+), and the (A&B -) will be the same connection to your radios ( A & B - neg chassis gnd) from a homebrew ac/dc pwr supply, making it a 3-point hookup instead of 4 since both the (-) ties together to the chassis gnd. If I remember correctly,a few diodes ,proper ratios simple transformer, & a few resistors can yield you a nice homebrew "regulated" DC farm radio ac to dc power supply for much less than AES sells theirs for high $$. Look online for a schematic to build your own: ( google search): "vintage radio battery eliminator" for a schematic. Good luck , the parts are cheap to build these type items!


Messages In This Thread
building a battery eliminator - by diyahnih - 03-11-2009, 08:01 PM
Re: building a battery eliminator - by exray - 03-11-2009, 09:10 PM
Re: building a battery eliminator - by diyahnih - 03-11-2009, 10:05 PM
Re: building a battery eliminator - by diyahnih - 03-12-2009, 05:38 PM
Re: building a battery eliminator - by Texasrocker - 03-14-2009, 12:54 AM
Re: building a battery eliminator - by exray - 03-14-2009, 06:22 AM
Re: building a battery eliminator - by diyahnih - 03-14-2009, 12:33 PM



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