Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 67037
United States of America (USA)
Brand: Gold Seal Electrical Co., Inc.; New York
Tube type:  High-vacuum Rectifier   Power-supply 
Identical to M25Z5
Similar Tubes
Other shape (e.g. bulb type):
Other base:

Base 6-Pin-Base U6A, old, USA
Was used by Radio/TV-reception etc.
Filament Vf 25 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)

Whith two independed diodes to be used as voltage doubler.
NOT intended as full wave rectifier. [JR]

The letter "M" appears only on the boxes and enclosed paperwork, not on the tubes.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 117 x 32 mm / x 4.61 x 1.26 inch
Weight 40 g / 1.41 oz
Information source -- Collector info (Sammler)   
M25Z5: Fin Stewart
Fin Stewart


from Just Qvigstad

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]