Virtual Valve Museum
Virtual Valve Museum | search:
About the museumMuseum exhibitsUpdates, new exhibits etc.EquipmentSupporters
View the guestbookDocumentsValves wanted!Valves for sale or for tradeLinks to other sites, suppliers etc.

Telefunken RD4Ma magnetron

Size This valve measures 125x39mm overall, 22mm across the glass section.

 

Filament voltage 3.3V
Filament current 4.2A
Anode voltage 1.05kV
Anode current 40mA
Field 1330 gauss
Frequency range 18 to 26cm
Power output 14W at 20cm

 

The filament voltage is marked on the glass along with the number 0943. The metal part carries the Wehrmacht marking, 43 43, and BAL 1964.

 

 RD4Ma
Inside view
This magnetron is a split anode device, the anode being in 4 segments with opposite segments connected together.
 Inside view

Quarter view Quarter view
Above: views of the magnetron. Below: detail of the connections and retaining mechanism.

Base view Pins

 

This file was last modified 13:36:16, Thursday September 28, 2006