Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Power transformer in a 12 volt/25 volt radio?
#8

So, one like this one?

http://www.mouser.com/ProductDetail/Hamm...hQYw%3D%3D

It has a CT on the 25 volt secondary, and is rated at 1 amp.

Along with a HV transformer. How much leeway do I have in voltage on the HV secondary. 320 VCT with a 6.3 filament winding is also a bit hard to find. I could make a solid state rectifier and rig up some sort of voltage dropping resistor set up, I suppose, if I'm forced to use a higher voltage. Might actually be better than a 6X5.

I've had this radio for about two years, so its not a giant hurry. I got it originally because it had a phono input and my daughter wanted one that she could use an iPod on. I had a little stereo to mono adapter made up that used Radio Shack mini audio transformers...they don't make the transformers anymore).

Charlie in San Antonio


Messages In This Thread
RE: Power transformer in a 12 volt/25 volt radio? - by ccomer1955 - 11-27-2016, 06:36 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM

[-]
Who's Online
There are currently 1770 online users. [Complete List]
» 1 Member(s) | 1769 Guest(s)
Avatar

>