One is a very rare dual side D getter and the other two are black plate tubes with halo top getter also very sought after. These tubes are reading amongst the strongest of this tube type that you’ll ever find.
PHILCO 5U4GB 5R4 5AR4 5Z3P 5AS4A US match pair TUBES Square Getter
5U4 can replace 5R4 5AR4 5Z3P 5AS4A. PHILCO 5U4GB US match pair TUBES. Square Getter. Suitable for speaker, amplifier,CD player etc. Give you a reasonable solution. I hope we can have a good deal.
Vintage 1965 Philco 5U4GB Rectifier Tube Black Plate Tests Great Sylvania!
It has long black plates, a top halo getter, and a nice patch of silvering. This is a gorgeous tube. I tested this on a B&K 747 tube tester, and it tested at 83/83, with no shorts or grid emissions, on a scale of 0-120, where 65 is minimum good.
(1) Tested Strong 1965 Philco 5U4GB Tube Black Plates Halo O Getter Code 65-48
(1) Tested Very Strong Philco 5U4GB Tube. Smooth black plates and a top O ring halo getter. Date Code 65-48 (November of 1965). We prefer the versatility and precision of Hickok TV-10 military testers and use them almost exclusively except in rare instances when pinout/socket compatibility is not possible.
Westinghouse Philco 5U4GB Vacuum Tubes NOS? Amplitrex Guaranteed
PHILCO 5U4G/5U4 AUDIO VACUUM TUBE BLACK PLATE D GETTER TV-7 TESTED.
The minimum is equal to 65% of the life of the tube. No shorts or gas.
(1) Tested 1955 Philco 5U4GB Tube Ribbed Plates Square Halo Getter Code 55-07
(1) Tested Strong Philco 5U4GB Tube. The 312 EIA code indicates that this tube was made bySylvania for Philco. Black ribbed plates with a top square D halo getter. Date Code 55-07 (7th week of 1955).
1959 Philco 5U4GB/5U4 GB Tube Rectifier Vintage Audio Guitar Amplifier Radio NOS
This tube doesn’t have the original box.
1 Excellent Philco 5U4GB Black Plate D Getter TV7 Tested Strong And Balanced
These tubes have been tested on a TV7 tube tester with all shorts tested. Tested values.
Vacuum Tube Philco 5U4GB Rectifier Hanging Filament Vintage Made In USA P4
For sale is a good used Philco 5U4GB Rectifier tube made in the USA. This tested 80% + on a Dyna Jet 606 tester.