Original MJ21193G MJ21194G MJ21193 MJ21194 TO-3 Fieber sound ZU rohr gold versiegelt rohr high power Darlington audio triode

Original MJ21193G MJ21194G MJ21193 MJ21194 TO-3 Fieber sound ZU rohr gold versiegelt rohr high power Darlington audio triode

Aliexpress DE