RCA
7543 RCA SQ 6AU6A EF94 Microphone pentode Low Noise Tested
7543 RCA SQ 6AU6A EF94 Microphone pentode Low Noise Tested
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€39,95
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One tube pcs ( 1 pcs ) of rare NOS NIB 7543 RCA.
This is SQ version of 6AU6 / EF94, upgraded for low noise and no microphonics.
