[Amps] TenTec Titan 425 Idle Grid Current

[Jim Brown]

On 9/25/2012 8:27 PM, Vic K2VCO wrote:
> If you get some grid current, either the amplifier is unstable 
> (unlikely) or a tube is going bad. 

The Titan 425 can easily be run with one tube at a time to zero in on 
something like this. Just be careful with discharge of the high voltage 
as you go in.  For quick tests, you don't need to replace all the cover 
screws, only enough that the interlock makes contact.

73, Jim K9YC