The Sylvania 5AR4 GZ34 Rectifier Tube is a vintage electronic component from Great Britain, designed specifically for audio equipment. As a collector's item, this rectifier tube holds historical value and is sought after by enthusiasts of vintage audio and electronics. With its reputation for quality and reliability, the Sylvania brand ensures that this model is a desirable addition to any collection of vintage tubes and sockets.
For your consideration is one Mullard 5AR4 GZ34 Labeled for GE.
For sale is a single NOS NIB Tung-Sol GZ34 5AR4 Vacuum Tube. It tested NOS where the minimum for a good tube is 40. - 62.0 / 61.2 (tube one).
Grey plates, f32 construction, 4 notch plates, dual halo getter. "Gt Britain". Firm base, excellent silvering. Tube tests at 170-168 where pass/fail is 80. Tube has the etched date code "f32 B4H1", manufactured by Mullard in the Blackburn plant in April of 1964.
One, Mullard 5AR4/GZ34, Grey plates, f31 construction, no notch plates, dual getter, fat base, white printed Mullard logo. "Made in Great Britain". Firm base, excellent silvering. Tube tests at 169-168 where pass/fail is 80.