Thread: Valve Life
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Old 9th Mar 2013, 4:06 pm   #26
Nicklyons2
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Default Re: Valve Life

What I know of the BBC in that era would suggest they would indeed have a spare but it wouldn't be dusty! the main transmitters had proper cleaning ladies and canteen staff, the places were spotless. Remember too that many of the transmitters from the pre-WWII era carried on until the frequency changes in the early 1970s (when R1 left 247m and moved to 275/285m).
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