[AMPS] SB1000 grid current

[km1h@juno.com]

On Fri, 04 Apr 1997 14:17:33 +0100 Chris Pedder <g3vbl@netcomuk.co.uk>
writes:
>Hi,
>
>Although I seldom if ever  use it, I do keep an Heathkit SB1000 amp. 
>Having
>fitted a soft (=step) start I am no longer troubled by the incredible 
>thump
>that I used to get at switch on but am puzzled by the following on 
>page 66
>of the manual:
>
>12.  Apply only enough drive to indicate either 1000 watts of output 
>power,
>     or 200ma of grid current.
>
>The figure of 200ma of grid current appears to be at odds with Eimac 
>specs.
>Is there anyone who can comment on this?
>
>73,
>
>Chris

At the risk of starting another weeklong discussion I offer the following
Chris:

1. Reduce drive to roughly 65-75W maximum.
2. Tune for max output which should be ~ 700-800W and about 125-150ma of
grid current. 

Your tube, power supply and others on the band will all thank you. 

73...Carl   KM1H

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