On 10-11-08 07:01 PM, Larry wrote:
I just received my two tubes today and powered them up.
Looking at the box I saw that the tube was sold as a ballast
regulator. From what I saw it seems to be regulating the voltage to
70 volts.
THese were the "amperite" brand ones? Amperite was very big into
ballast devices, which work to hold constant a value such as voltage or
current. The 0A2, 0D3 regulator tubes are an example of a voltage
regulator. The GE Glow lamp manual mentions using a neon lamp as a
voltage reference source.
(Zener Diodes are a fairly new idea.)
Sounds like this is what the tube was made for, and the lack of full
glow may not be "cathode poisoning" perhaps it is intentional.
--
Charles MacDonald Stittsville Ontario
[email protected] Just Beyond the Fringe
http://www.TelecomOttawa.net/~cmacd/
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