[Amps] Revamping a really ugly amp

[Rex Lint]

Good point:  I hadn't thought of that.  It's probably like a voltage
divider.  So the relay should be able to isolate (almost) 4k volts (at least
the higher bands).  So looks like vacuum relays on the higher bands,
anyway...  

      -Rex-
 
     K1HI
       Rex Lint
       Merrimack, NH 
-----Original Message-----
From: Radio WC6W [mailto:wc6w_amps at yahoo.com] 
Sent: Saturday, March 13, 2010 2:46 PM
To: Rex Lint; amps at contesting.com
Subject: Re: [Amps] Revamping a really ugly amp

Hi Rex,
  The voltage will be rather high on the open upper band relays if you are
running on the lowest frequency.

73 & Good morning,
  Marv WC6W

http://wc6w.50webs.com/

--- On Sat, 3/13/10, Rex Lint <rex at lint.mv.com> wrote:

<snip>

> 
> I wonder if anyone uses relays instead of a rotary switch
> to select the
> desired taps?  What are the parameters I need to
> consider in trying this?
> In my thinking, I'll just be switching the output side of
> the inductor, and
> the impedance at this point (when tuned) should be about 50
> ohms, so the
> voltage isn't that high (350 V.?),  and the current
> would be about 6 amps.

<snip>

> 
> Thoughts?
> 
>     -Rex-
> 
>      Rex Lint, Consultant
>      26 Brek Drive
>      Merrimack, NH 03054
>      PH:   
> 603-860-7651    



      
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