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GU 74b Matched pair of 4CX800 or GU74b tetrode tubes. NOS (New Old Stock)
Matched pair of NOS (New Old Stock) GU-74b or 4CX800 tubes. Single tubes available - click ..
$1,000.00
GU 74b tetrode 4CX800/GU74b tube. NOS (New Old Stock)
We sell NOS (New Old Stock) GU-74b or 4CX800 tubes. Pair of matched tubes available. click he..
$500.00
GU74b Tube Testing
Your tube get dirty and you think it overheated?They may even look fine, but you don't get the..
$35.00
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