ECH22 (Techniek Radio/TV)

door S.Leunissen , regio Zuid Limburg, 10.10.2008, 11:07 (5700 dagen geleden) @ Jan vd Reijden

Hello,

This valve was also used in non-commercial professional admiralty, navy, airforce shortwave and very longwave Murphy B40 and B41 receivers.

The ECH21 can be used in stead of the original ECH22 (= equal to CV302) by using an socket adapter or by changing the sockets pin conections on the receivers chassis. Using a valve socket adapter is the best solution. The ECH21 and ECH22 function in exact the same way. With the techspecs disgarded they only differ in the pin connections.

best regards,

Sander