Type: 5U4GB rectifier (aka 5AS4A equivalent). Tested on Sencore Mighty Mite: Emissions at97/120 and 99/120 on both sections — strong, nearly balanced performance. Test Results: 97/98 (strong emissions).
Balanced 5U4GB Philco (Sylvania) black plate/D getter Tube, TV-7D Tested
5U4GB no box. Philco made by Sylvania. sections of a single tube. Within 3% I consider to be ‘Balanced’. ‘Balanced’ refers to comparing the gm test results between the lowest to the highest identical.
New in Box PHILCO 5U4GB ELECTRON TUBE REPLACEMENT
New in box as pictured
5U4GB Philco (GE) full-wave rectifier radio tube, Black Plates – Tested Good!!
Philco (GE) 5U4GB full-wave rectifier radio tube, Black Plates – Tested Good! There is always a possibility of a typo or a an error that can potentially be made on our end without the intent of doing so.
Philco 5U4GB tube,tested great,5U4,gray plates,GE-made,f-w rectifier,radio,amp
This listing is for a good used vintage Philco-branded, GE-made type 5U4GB full-wave rectifier vacuum tube.This tube tested great on a reliable Hickock 800A tube tester. The sections tested at 2650/2700 on a scale of 0-3000, where 1500 or more is “GOOD”. …and NO shorts or gas detected.Ref: New tubes will typically test at 2600+/2600+ on this tester. Strong readings and closely matched sections!Satisfaction guaranteed! — $-$-$ — Check out all the other items I have for $ale! — $-$-$**** FREE domestic economy shipping & handling on this item! ******* PLEASE make payment within (5) days of the auction ending. Thank you! ****** As a seller, I promptly leave feedback after receiving positive feedback ***
PHILCO 5U4 GB RECTIFIER TUBE NOS NIB BLACK PLATE 1968
I have a B&K 747 tube tester. This is a mutual conductance tester. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. The lines show how the tube conducts throughout that range.
PHILCO 5U4GB Vacuum Tube, Rectifier, Hickok, NOS, FREE 2-3 Day Ship!!
The item you will receive is exactly as pictured.