This Mullard GZ34 tube (type f32) features a date code of "B5B1" with notched plates and two round getters. Our TV-7/D tester lists the minimum as 40/40, and this tube tests very balanced at 61/62.
TESTING: The tube(s) in this sale have been tested on a vintage TV-7/D tube tester, which has been overhauled and calibrated by Dan Nelson. Dan Nelson is the guru of TV-7 testers, so you can rest assured that you're getting dependable test results. Please note that no tube testers are identical and my test results will likely differ slightly from yours.
RETURNS: If you're unhappy with your purchase for any reason, I will gladly take it back for a full refund. Please note that I reserve the right to issue partial refunds if tubes are missing, damaged, or without original boxes (when applicable).
INTERNATIONAL BUYERS: Please read and understand the following before making a purchase:- First Class Mail can take more than 60 days for delivery, so please be patient. If you need your tubes faster, select USPS Priority Mail or USPS Express Mail.
- I will not declare a lower value for any reason.
OTHER TUBES FOR SALE: I have many premium tubes for sale and will combine shipping if you buy multiple items. Click the links below to see what else is available!- Audio Preamp Tubes (12AX7, 12AY7, 6SN7, 6DJ8, etc)
- Audio Power Tubes (6V6, 6L6, 6550, EL34, etc)
- Audio Rectifier Tubes (5Y3, 5U4, GZ34, etc)
- Radio Transmitting Tubes (6146, 811A, 3-500Z, etc)
- Other Tubes and Accessories (eye tubes, Nixie tubes, CRTs, sockets, etc)