A very easy solution for a standby switch for the SB-220/221 series...
The front panel is held on with 4 screws. I drilled out the hole for the
screw on the lower left corner, installed a mini-toggle switch there. Since
I had previously added a small relay, so T/R was only switching 12 volts,
this became a trivial fix for the lack of a standby/operate switch.
In a message dated 11/30/2009 7:38:49 P.M. Eastern Standard Time,
Date: Mon, 30 Nov 2009 17:18:19 -0500
From: Jeff Carter <email@example.com>
Subject: Re: [Amps] SB-200/ SB-220, HL-1000 etc
Content-Type: text/plain; charset=ISO-8859-1
Where were you when I needed you?
That would have been a fantastic addition to my SB-220 rebuild. I
originally intended to use an original switch but couldn't find a good one
and bought a generic one. It would have been just as simple to do what you
did while I had it all apart.
On Mon, Nov 30, 2009 at 4:10 PM, Edwin Karl <firstname.lastname@example.org> wrote:
> To add standby to an SB-200 I replaced the output meter power control
> pot to one with a push pull on off switch. On my SB-220 I added a new
> metering switch with an extra position and used the second wafer to
> open the keying lead. Always bothered me to turn these things on and
> off when using the exciter to adjust the antenna matcher. Didn't want to
> cut the cabinet.
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