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
6TPZ and 5TPO Radio Help
Here are the links. 6TPZ and 5TPO The speakers are good. I've tried several known good ones. I just have to fi...R3Sons — 06:27 PM
Philco 91 Tuning Condenser
I just found a set screw. Was able to turn dial just enough to see it and loosen it. I have it off now.dconant — 06:14 PM
Philco 91 Tuning Condenser
Hello, Does anyone know how the dial plate comes off the tuning condenser shaft? The dial itself id so warped I can't...dconant — 06:01 PM
Eico 368 TV/FM Sweep Generator
Ron, for the future: In order to change the name of teh topic, 1. Go to the very first post. 2. Hit "Edit...morzh — 04:29 PM
6TPZ and 5TPO Radio Help
Transistors are easy. No converters. If you have input voltage, then just put some signal through. Or touch your fin...morzh — 04:25 PM
462ron
Hi Mike, I believe I tried different ways to change the header for my post but no luck. Anyway thanks for changing it fo...462ron — 04:02 PM
6TPZ and 5TPO Radio Help
Since these radios operated in harsh environments (temp changes and vibration) you could touch a soldering iron to all t...GarySP — 03:18 PM
6TPZ and 5TPO Radio Help
Thank you Gary. Hi Morzh. These radios are 6 transistor radios. Sadly no tubes. Thanks though.R3Sons — 02:19 PM
Heathkit Sweep Generator TS-4
Ron Instead of Quick reply, go to New Reply, then go to the title of the very first post, and change the title text the...morzh — 02:00 PM
6TPZ and 5TPO Radio Help
I am not a specialist in car radios. I suspect they might use vibrators to convert 12V to acceptable tube voltages, so ...morzh — 01:58 PM

[-]
Who's Online
There are currently 10132 online users. [Complete List]
» 3 Member(s) | 10129 Guest(s)
AvatarAvatarAvatar

>