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Old 11th Mar 2008, 6:42 pm   #7
geofy
Retired Dormant Member
 
Join Date: Jun 2006
Posts: 1,798
Post Re: Vidor CN426 HENLEY

It is difficult to determine if the valve heaters are working, a milliamp meter in the LT supply might be a better way to see if heater current is being drawn.

Geof

Quote:
Originally Posted by Hunts smoothing bomb View Post
I have several similar Vidor sets and when the heaters are running at the correct voltage (1.4v) you can just and just see a dull red glowing cord of light in a pitch dark room in the centre of each valve.

Cheers
Lee
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