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Re: Topband: AC line bypass capacitors

To: Roger Graves <ve7vv@shaw.ca>
Subject: Re: Topband: AC line bypass capacitors
From: Bill Wichers <billw@waveform.net>
Date: Thu, 5 Feb 2015 01:05:47 +0000
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Digikey carries the Panasonic ECQ-UL series film capacitors that are rated for 
use as ac line bypass caps. I've used them before in thyristor (triacs, in this 
case) phase control drivers. They are durable and inexpensive. 

They are generally either 250vac or 275vac rated. 

-Bill

Sent from my iPhone

On Feb 4, 2015, at 12:52 PM, "Roger Graves" <ve7vv@shaw.ca> wrote:

> My 160 TX is causing RFI to one of my baseboard heater programmable 
> thermostats (switches modes, temperature, when I transmit). The thermostat 
> has a 2 wire connection to 240VAC in a metal receptacle box that has a third 
> wire common ground wire. I would like to try bypassing the AC line. Can 
> someone suggest an appropriate (safe) capacitor for this purpose, e.g. a 
> Digi-Key or Mouser part number? Should I use one capacitor across the 240VAC 
> or two capacitors, one from each 120VAC line to the common wire? Thanks for 
> the help.
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