[Amps] Testing tubes for an Alpha 78

[Carl]

You sure can.

Plug the empty hole with a tissue and drive it with around 25-30W on 40M. 
The input VSWR will be off but even a fussy rig should still give sufficient 
drive.

If it looks good on 40 then you can try 10 to see if it holds up there. 
Tuning will be a little touchy so be careful.

Watch the grid current.

Carl
KM1H


----- Original Message ----- 
From: "Paul Gerhardt" <phgerhardt at gmail.com>
To: <amps at contesting.com>
Sent: Thursday, December 31, 2009 5:28 PM
Subject: [Amps] Testing tubes for an Alpha 78


> Can you test tubes in an Alpha 78 one at a time?  What is a good
> procedure for doing this?
>
>
>
> Paul Gerhardt
> K3PG
> http://pgerhardt.blogspot.com
> QRP ARCI 6674
> FP 274
> Raytrack DX2000L
> Clipperton L
> SB-230
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