Showing posts with label filament. Show all posts
Showing posts with label filament. Show all posts

Friday, December 20, 2013

Antique Radio Dc Filament Supply Circuit Diagram

This dc supply is great for operating battery-powered antique radios, because it is designed to prevent harming the tube filaments. The circuit is useful for powering filaments of 00-A, 01-A, 112A, and 71A tubes, which require 5V at 250 mA. 


 Antique Radio Dc Filament Supply Circuit Diagram

 
Continue reading...