On Jul 28, 2005, at 8:05 AM, Steve Thompson wrote:
>
>> HV is no danger to the emissive surface unless cutoff bias is removed
>> during the preheat period.
> In most cases gg triodes aren't actively biassed off, they
> are self biassed at a very low current level by having a
> high value resistor in the cathode. That limits the maximum
> cathode current to a low level which is very unlikely to
> damage the cathode even if anode volts are applied during
> warmup.
Good pont, Steve
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
Richard L. Measures, AG6K, 805.386.3734. www.somis.org
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|