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(!) (#1 C3M VALUE PAIR) C3M Siemens Germany used/test like new 1960's (28.0ma/30.4ma)

$ 49.99

1 pair) C3M Siemens Germany used/test like new 1960's in white boxes

1 tube) 30.4ma Serial #1518447

1 tube) 28.0ma Serial #1057432

 

Vplate=150V, Vscreen=150V, Vgrid=-3V (Good Iplate range 20-30ma)

 

(10,000 hour Special Quality petode designed for AF and RF circuits)
(Good driver tube for 300B amplifier, see Glass Audio Issue 1/98, page 18)

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See more: vacuum tube
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