Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

building a battery eliminator
#1

Hello,
This may sound like a stupid question...... Icon_redface
I have a Admiral 6T06-4A1 and i am going to try to build a battery eliminator for this 'farm radio'. My question is:
in the back of the radio, i see to thin wires on the left side (?antenna wires); and a 4 wire/4 prong on the right side, is this where the battery hooks up? Or is something missing? How would you hook up a battery eliminator to these prongs? Icon_confused
Thanks-
diyahnih
#2

Hi

To be able to do this successfully, you need the schematic for your radio which should show how the 4-pin connector is wired; i.e. which pin of the plug is connected to what terminal on the battery.

Bill (batterymaker) could help you out a lot more here...if he doesn't jump in, you might send him a PM or e-mail.

--
Ron Ramirez
Ferdinand IN
#3

Here's some info on that radio.
http://www.nostalgiaair.org/PagesByModel...000039.pdf

#4

Hello,
Thanks Ron & exray for the info on this radio Icon_biggrin --i need the help, i hope Bill 'batterymaker' will post to this topic.

Thanks-
diyahnih
#5

Whatcha need? Socket info?
[Image: http://users.mw.net/~bmorris/farmsocket.jpg]
#6

batterymaker,

I had to super glue the round brown piece that held the 4 metal prongs (it was broken in 3 pieces); but, i got that aha moment Icon_eek from your diagram--and It may not have the same exact dimensions, but it'll do. Thank you so much for your help.
diyahnih Icon_biggrin
#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!
#8

Texasrocker Wrote:=
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.

wooopsie! B-minus will go to the chassis via R11, 390 ohms. Make sure this resistor is actually in place. In some designs it was part of the battery plug. Its the bias resistor for the whole radio.
#9

Texasrocker,

Thanks for the information, i appreciate the help with this radio.

diyahnih Icon_biggrin




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Need Help to ID this radio 11 tube Philco
If you want a radio that's difficult to work on, get a 37-620. The one side of the chassis is packed pretty tightly and ...Greg — 07:29 PM
Need Help to ID this radio 11 tube Philco
Philco 16 is not intimidating at all. Despite being an 11-tuber. 37-116 is indeed intimidating. 16 has good space unde...morzh — 04:11 PM
48-482 rear panel help
Thanks for the responses Gary and Bob. I'm a little surprised that there's no back panel - although I know older Philco'...keithchip — 04:09 PM
48-482 rear panel help
Gary is correct, there was not a rear panel on the 48-482. I restored one of those and its a great sounding radio that ...klondike98 — 03:24 PM
The list of my radio & TV collection!
A little light positivity in our feed... To nostalgic retro music... With English subtitles My new video on the contin...RadioSvit — 02:14 PM
My Philco 37-116 Restore
Ron and Mike I mentioned a 2 meg resistor not on the schematic. I stumbled on a changes note in Riders that mentioned th...dconant — 12:02 PM
Need Help to ID this radio 11 tube Philco
Here you go: Your the code 125Radioroslyn — 11:12 AM
My Philco 37-116 Restore
Hi Ron, Thanks for the input. I think I'm going to call it good enough. It does seem weird I can usually dial in othe...dconant — 08:01 AM
Need Help to ID this radio 11 tube Philco
Welcome, the radio looks intimating 11 tubes, wish you well.Jimradio — 07:49 AM
462ron
Hi Dan, it’s been 10 years since I restored the electronics on my 37-116 so I’m going on some foggy memories. I remember...462ron — 07:37 AM

[-]
Who's Online
There are currently 372 online users. [Complete List]
» 1 Member(s) | 371 Guest(s)
Avatar

>