This section deals with early valves made between 1920 and 1940. Most of the valves shown here are early balloon types for radio use, audio output from small sets, etc.
These are familiarly called Battery valves and also made for electric sets
The most common are Mullard PM1 PM2 AUDIO and RADIO Bargain Valves etc
©2023 Audio Magical, All Rights Reserved | Privacy Policy
Website built by Chaplin Multimedia Ltd