[Amps] how to bias a Tek 575 for a MRF150

[Radio WC6W]

Hi Dan,
  Upgrade to a Tek 577... 

  or...

  use a floating bias supply for the offset, perchance
a Lithium battery connected to a small pot bypassed
with a suitable capactior, in series with the gate
lead. 

73 & Good morning,
  Marv WC6W

http://wc6w.50webs.com/

  


--- Dan Sawyer <dansawyer at earthlink.net> wrote:

> All,
> 
> I would like to use a Tek 575 to test several
> MRF-150 devices. The issue 
> seem to be the gate bias and gate step are coupled.
> That is the bias 
> range increases with the bias step value. The result
> is when measuring 
> lower step values the bias range is insufficient to
> turn the device on. 
> At higher step values the device is overdriven.
> 
> Does anyone have a suggestion?
> 
> - Dan
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> 



 
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