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Re: [Amps] DRAKE L-4 AMP - 'rewiring the ON/OFF switch"

To: A Lawrence Fibich <>, "" <>
Subject: Re: [Amps] DRAKE L-4 AMP - 'rewiring the ON/OFF switch"
From: gudguyham--- via Amps <>
Reply-to: "" <>
Date: Thu, 1 Dec 2022 02:31:41 +0000 (UTC)
List-post: <>
I assume you want to use a 120v relay as a contactor to take the burden off the 
on/off switch.  There’s ALWAYS 120vac available on the same terminals the 
blower connects to.  NEVER use chassis ground for a neutral return.  Simply 
hook into the blower terminals for 120v AC. Shift the wires from the original 
on/off swith over to the relay contacts in the same configuration.  The CW/SSB 
switch is part of the on/off switch but is separate electrically.  I assume 
you’ll keep it as is.

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On Wednesday, November 30, 2022, 9:03 PM, A Lawrence Fibich 
<> wrote:

Might be a bit hard to explain - so if you have/know this unit perhaps can talk 
off line?  I am rewiring the ON/OFF switch so the 220VAC doesn't go through the 
switch. Using an AC relay (output/control side) - to Switch/connect the power 
lines previously mounted to the ON/OFF switch. Then the ON/OFF switch is now 
used to 'turn on' the relay - power to the relay - comes from the Filament 
circuit via the ON/OFF switch to one side of the input/control on the AC relay 
- and the other terminal on the input of the AC relay is then 
grounded.Something just doesn't 'feel right' in having the one side 'grounded' 
- and asking/wondering if a problem. Another thought is ? if I should use a 
resistor of some value to decrease the voltage in this circuit going to the 
chassis ground? Thoughts and experience doing this on this unit is 

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