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Tubes & Valves Upgrades, Spares & General Comments |
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Mullard Blackburn works 1954
Pretty cool article about Mullard Blackburn tubes from 1954.
http://www.effectrode.com/signal-tub...tory-16-years/ ...and "Whatever happened to Mullard?" http://www.effectrode.com/effectrode...pened-mullard/ |
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