Virtual Valve Museum
Virtual Valve Museum | search: (use * for wildcard)
About the museumMuseum exhibitsUpdates, new exhibits etc.EquipmentSupporters
View the guestbookDocumentsValves wanted!Valves for sale or for tradeLinks 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 16:45:29, Thursday August 28, 2014