Radio Valves

Mazda AC/HL


Mazda early high gain triode of 'short path' low microphony design with an indirectly heated, oxide coated cathode. This is the direct successor to the first indirectly heated oxide coated cathode valve the Cosmos AC/G. Anode with 'wings' and grid with a single support. 4 volt, 1 A filament. Maximum anode voltage 200, grid bias -1.75 volts. Anode current 4.9 mA, ra 15 k ohms, gm 5 mA/V, mu 75. B5 base.


Here is a somewhat later Europa version. Side supported mesh anode, spiral grid and straight through filament with top and bottom connections. B5 base.

© Andy Cowley, 2005-2012     Home

This page last modified by AJC on Monday, 29-Mar-2010