Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 30210
United States of America (USA)
Brand: Hytron; Salem (MA)
Developer: Hytron; Salem (MA) 
Tube type:  Vacuum Pentode   VHF 
Identical to HD30 = 3B4

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 1.25 Volts / If 0.33 Ampere / Direct

This was the internal Hytron code for the JEDEC 3B4 VHF beam power amplifier.

Dimensions (WHD)
incl. pins / tip
x 54 x 19 mm / x 2.13 x 0.75 inch
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 201, p. 393
- - Manufacturers Literature   

3b4~~1.png HD30: Manufacturer's Literature
Emilio Ciardiello

Just Qvigstad
HD30: Manufacturer's Literature
Emilio Ciardiello

More ...

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]