Videokarma.org

Go Back   Videokarma.org TV - Video - Vintage Television & Radio Forums > Antique Radio

Notices

We appreciate your help

in keeping this site going.
 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 12-11-2013, 06:34 PM
wa2ise's Avatar
wa2ise wa2ise is offline
VideoKarma Member
 
Join Date: Dec 2002
Location: USA
Posts: 3,147
Another AA5 radio mod, to run off low voltage AC

Yet another radio mod, this one I doubt anyone would replicate. At my mom's house there is this 8/16V @ 5A power bus, using the old 1/4 inch Jones plugs. Why these voltages> It dates back from the time we had a model railroad setup, and the lights in it used 8V. I have a few 4BE6's and 4AV6's, and a 17V centertap transformer I could wire backwards to get the plate voltage. The rectifier became made of sand, and the 50C5 became a submini 5902. And the 12BA6 changed to a 6BA6, and a small heater dropping resistor. The B+ came out a little low, around 90VDC, but the radio still works well.
Attached Images
File Type: jpg aa4diaa8.jpg (59.2 KB, 111 views)
__________________
Reply With Quote
 



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 07:25 AM.



Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.