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1 X NOS TELEFUNKEN EF804 Silver Plate Preamp Pentode - 539c Tested

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Price:
US $54.00
Approximately£42.64
+ US $53.83 postage
Estimated delivery Fri, 28 Jun - Thu, 11 Jul
Returns:
14 days return. Buyer pays for return postage.
Condition:
Opened – never used
NOS is subject to interpretation and there is no specific definition for it either. There are suggestions and opinions. Tube testers do not test for these problems in the manner in which you think, except to the extent that a tube tester with sensitive leakage detection will find far more “noisy” tubes than a tube tester with only “fair” leakage sensitivity, to the extent that the noise is due to this problem.