SP16 Blue Cosmos balloon top pip – SP16 Red top pip – SP18 Green Cosmos top pip Metro-Vick
Cosmos balloon SP16 blue £ 180 pair.
Cosmos SP16 red £ 120 pair.
Cosmos SP16 green £ 150 pair.
Description
This section shows three variations of the Cosmos SP16 and SP18.
On the left pair Cosmos balloon SP16 blue. Short-path construction, flattened anode.
Pair Cosmos SP16 red is a short-path as above, dull emitter AF amplifier valve with thoriated filament.
Pair Cosmos SP16 green short-path design, this valve saw the light in 1928 and was classified as ‘general purpose’ radio valve for HF / LF.
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