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@yahoo.com]
Sent: Saturday, March 13, 2010 2:46 PM
To: Rex Lint; amps@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@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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