Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 57966
Tube type:  Voltage Regulator, single   Power-supply 
Identical to 0H3 = 90C1

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament No heater
Description 90V 1-40mA. Dual marking for 85A2. Probably this code was assigned for a JEDEC registration of the 90C1, never completed.

The 0H3 appears on some North American supplied tubes with dual 90C1 and OH3 markings on the tubes and boxes.
The origin of specimens are from both the UK's Mullard Mitchan factory, and Philip's Heerlen factory. It is possible that these tubes were rebadged in North America.

In common with other earlier 90C1 tubes, they share the coding of the 85A2. 

Information source -- Collector info (Sammler)   
0H3: Philips 0H3 tube
John Albion

0H3: Manufacturer's Literature
Emilio Ciardiello


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]