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

Model 20 power transformer
#2

Hi Danny

Unfortunately, no.

You will need a power transformer with a center tapped high voltage winding, a 2.5V center-tapped winding, a 5V winding for the rectifier PLUS another 5V center-tapped winding for your 71A tubes.

I would suggest you consider having Heyboer Transformer custom-wind a replacement for you, if you plan to keep and use the radio.
http://www.heyboertransformers.com/index.shtml

A new transformer for your radio should cost around $100. The advantage of having a new one made is that you can have them design the primary for 125 or even 130 volts AC, instead of the 110-115 volts that the original was designed for. This will reduce the strain of higher than designed voltages on your old radio's circuitry due to today's higher line voltages.

Should you decide to pursue this, you will need the complete specifications for your transformer - physical size, mounting, and the voltages and currents required for each winding. I'll post the transformer specifications later.

Heyboer does excellent work. I've used their services twice so far, and would not hesitate to use them again. But be advised they do not provide a terminal board as the original had, only wire leads. You will either have to adapt the new transformer into the original bells and terminal board, or hook the wires into the radio circuitry, without a terminal board.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
Model 20 power transformer - by Danny - 10-26-2007, 11:03 AM
[No subject] - by Ron Ramirez - 10-26-2007, 03:10 PM
[No subject] - by Ron Ramirez - 10-26-2007, 03:17 PM
[No subject] - by Danny - 10-27-2007, 12:11 PM
[No subject] - by Ron Ramirez - 10-27-2007, 12:35 PM
[No subject] - by Danny - 10-27-2007, 02:28 PM
[No subject] - by davemc - 10-29-2007, 12:08 PM
[No subject] - by Terry Judkins - 10-29-2007, 07:47 PM
[No subject] - by davemc - 11-02-2007, 07:02 AM
[No subject] - by Danny - 11-10-2007, 01:17 PM
[No subject] - by Danny - 11-16-2007, 07:12 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Hi Cap'n Clock, Unfortunately, I do not have this radio.  This is a shame because this should be a good performer.  2A5...MrFixr55 — 06:48 AM
American Bosch Model 802 auto radio
I think it would come under either American Bosch or United American Bosch. American Bosch made sets for the American We...Arran — 05:53 AM
trying to identify this wire type
Thanks to all for the feedback. As Arran said, it is probably an older replacement and yes it has a grid cap so I will ...georgetownjohn — 09:32 PM
trying to identify this wire type
It's possible that the red wire, actually a grid cap lead, is a very old replacement, I can't remember seeing a pre 1939...Arran — 09:18 PM
Gilfillan Brothers Car Radio?
Hi everyone,  Special thanks to Joe Rossi for tracking down this obscure radio and thanks to others who took up the hun...Antipodal — 08:15 PM
trying to identify this wire type
Here's one source for your wire of many. Take care and BE HEALTHY! Gary P.S. Can't get the right color you need? I ...GarySP — 06:40 PM
trying to identify this wire type
...and modern wire of the appropriate gauges and insulation V-rating (300V minimum, usually shown right on the wire) is ...morzh — 05:47 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
I have a question about this radio, is there anyone that has access to this radio that has an intact unmolested speaker ...captainclock1988 — 04:28 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Well what makes me confuse all of those companies is that all three of those companies (Setchell-Carlson, Stromberg-Carl...captainclock1988 — 04:21 PM
trying to identify this wire type
The red wire is rubber covered wire. The others are cotton braid over rubber often in colors or a tracer, also strand...Chas — 02:43 PM

[-]
Who's Online
There are currently 6758 online users. [Complete List]
» 1 Member(s) | 6757 Guest(s)
Avatar

>