Valve Gallery - Rare And Unusual Valves (1)

Valves: Early Top Pip, CRC829 (VT-259), CRC832 (VT-118), CRC955 (VT-121).

This site concentrates on the 1930s onwards, but here is an early one as a degree of completeness.  Valves from the early 1920s looked like the above, with ebonised B4 base, with wires from the internal electrodes visibly soldered onto the brass pins, and a "top pip" to seal the glass envelope.  Height 135mm. Some of these descriptions are going to be a bit vague, as mentioned these valves have been selected from my spares stock on looks alone.  Above is an RCA CRC 829, also given code VT-259.  Height 112mm. Equivalent to 304TH.

Another of the same format, but somewhat smaller.  Again from RCA this is CRC 832, also coded as VT-118.  Height of 88mm. Same envelope style again, but this time tiny.  RCA CRC 955, also coded as VT-121.  Acorn triode from the USA, just 32mm height.

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