One vintage RCA type 5Z3 rectifier tube.  

This one has some loose glue in the base which rattles when you move it around.

Used,  tested on a B&K 747B,  minimum good of 65 (marginal 55-65).

Test Results:  103 / 107

Please email with any questions before bidding.

Payment must be received with 7 days.

Thanks for looking.  Please check out my other auctions for more vintage electronics and tubes.