211 STC VT-4C VN39 Western Electric CV25 audio triodes – 805 RCA
STC 211 CV25 Western Electric STC GBP 900 pair.
805 RCA Output Triode GBP 200.
Description
An all time classic audio valve is the 211, government type VT-4C. The 211 VT-4C is a directly heated audio power triode for amplifier and modulator, also for RF amplification.
The valve can be used in single ended device in class A1 the output is about under 20 Watts. In class B push-pull amplifier itb gets over 200 Watts output.
The two STC shown on the left have WE construction and STC logo fully tested and in working order.
Other valve shown is a 805 transmitting triode of mid 1930s capable of delivering over 200 Watts.
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