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Preamp tubes

 
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(!!!) (Best RCA) 7199 RCA black plates NOS 1960 era (10.5ma pentode, 10ma triode)

(!!!) (Best RCA) 7199 RCA black plates NOS 1960 era (10.5ma pentode, 10ma triode)

$ 89.99
(!!) (Best Pair) 7199 Sylvania NOS 1960's and 1985 same build (12.5ma/9.6ma and 12.3/10.2ma) 1-3% matched

(!!) (Best Pair) 7199 Sylvania NOS 1960's and 1985 same build (12.5ma/9.6ma and 12.3/10.2ma) 1-3% matched

$ 169.99
(!!) (Best Sylvania Single) 7199 Sylvania NOS 1960's (11.6ma pentode, 10.2ma triode)

(!!) (Best Sylvania Single) 7199 Sylvania NOS 1960's (11.6ma pentode, 10.2ma triode)

$ 89.99
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