12SK7 – Capital Tower

Vintage Metal Vacuum Tube 12SK7 TESTED 100%+ Various brands

By |2026-07-23T22:38:17+00:00July 23rd, 2026|

Vacuum Tube 12SK7. Rectifiers and Diode tubes do not have Transconductance values. VACUUM TUBE TESTING. I tube will be pulled for your order and it may not be the tube in the photo. Use the zoom function and have a good look.

12SK7 VACUUM TUBE ~ Tested ~ 1 Pc ~ Several Different Brands

By |2026-07-23T22:37:35+00:00July 23rd, 2026|

THIS SALE IS FOR ONE (1) TUBE, RANDOMLY SELECTED FROM MY INVENTORY. TESTED ON AHEATHKIT TT-1. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.