MS 250

The MS 250 is a 250 watt German triode made by C.H.F. Müller GmbH. The marking RRF on the envelope stands for "Radio Röhren Fabrik" meaning "Radio Tube Manufacturer" and dates from about 1923-24 according to Gerald Tyne.

Length = 10.75" Diameter = 4.50"
Max voltage =
Max current = 250 ma
Fil voltage = 11.5
Fil current = 4.3 amps         GOTO INDEX