45 balloon quartet Radiotron UX245 (x2) Cunningham CX345 Sparton C245 audio triodes
Radiotron UX245 GBP 375 pair.
CX345 by Cunningham GBP 175
C245 by Sparton GBP 150
Description
The 45 was first introduced in 1929 and was originally named UX245, then later on different versions were made of the same valve.
The 45 has been put back in production together with the 300B and remains one of the best audio valves. The balloon 45 we have are:
Pair of Radiotron UX245
CX345 by Cunningham
C245 by Sparton
All four 45 valves tested 41mA; 43mA; 44mA and 42.5 mA full emission.
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