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
5U4 vs 5Z4 tubes
The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM
Philco 42-345 Restoration/Repair
By the way. osanders0311 Take a look here: Dial cord stringing Guides May be here you can fount correct string settin...Vlad95 — 11:15 PM
5U4 vs 5Z4 tubes
5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time. Just heater current 5U4 ...Vlad95 — 11:02 PM
Philco 42-345 Restoration/Repair
Hello Vlad95 , Very Funny ! Sincerely Richardradiorich — 11:01 PM
Philco 42-345 Restoration/Repair
RodB You are European yourself   :evil: I'm Canadian for the last 30 years  :snowman: But not Yankee  :lol: Vlad95 — 10:49 PM
Philco 42-345 Restoration/Repair
The band switch selects different oscillator coils for the band selected. I would look for a bad connection in the switc...RodB — 10:31 PM
Philco 42-345 Restoration/Repair
Hang in there...PaulPaul Philco322 — 09:30 PM
Philco 42-345 Restoration/Repair
The thrill is gone again, thought I was close to being done with it. Well Friday it was receiving broadcast, Saturday mo...osanders0311 — 07:47 PM
Help with Supreme 599
Iam getting closer to fixing it. I bumped Up the tranny voltage to get 5v on the 80 tube. I gan get the needle to move ...daveone23 — 03:41 PM
Philco 42-345 Restoration/Repair
Hello RodB, Checking my previous post I realized you're the one with the 42-340. I replaced the string for the tuning...osanders0311 — 03:12 PM

[-]
Who's Online
There are currently no members online.

>