Virtual Valve Museum
Virtual Valve Museum | Search: (use * for wildcard)
About the museumMuseum exhibitsSupportersDocumentsLinks to other sites, suppliers etc.

Visseaux (French)

Two letters followed by four figures

Letters RO Directly heater
RS Indirectly heated
1st figure - heater voltage 4 4V
2nd figure Serial?
Last two figures Amplification factor

This file was last modified 11:44:54, Thursday April 14, 2022