[Amps] SB220 QSK bias and RF relay mounting

[Warren Volz]

Louis Gary and John,

Thanks for your words of wisdom. Your responses have helped put me on the right track. Now if I can only get over drilling holes in the chassis…

Below is a link to a photo of where I think it fits but my next question is if it’s too close to the filament choke:

https://magicchef.zapto.org/owncloud/index.php/s/7C6U5Hn5BTOo67O

If it’s current location is ok it will only require drilling one additional hole. Next task will be mounting the W7RY QSK board which I believe I have a place for.

-Warren

> On Sep 18, 2016, at 2:37 PM, John Lyles <jtml at losalamos.com> wrote:
> 
> Its been a long time since I replaced the open frame power relay in mine and installed a vac relay for output and small RF relay for input switching. I removed the OEM relay and mounted it in that general area using the same RG8 pigtails that supplied RF to the OEM relay. I believe I made a small vector board to hold mine, but its been over 20 years and I didn't take photos unfortunately. I would not suggest moving the QSK board anywhere near the output circuit above the deck. Hot glue or RTV doesn't sound like a long term solution, as if it every comes loose, expect fireworks when it falls onto the bottom cover. If you can, use the screw holes for the OEM relay to mount the assembly.
> 73
> John
> K5PRO
> 
> 
>>> I?ve got a SB220 thats been on the bench since last year. It?s
>> nearing completion but I have a few remaining items left. One of the
>> last is finding a place for the W7RY QSK board and a pair of vacuum
>> relays I found on eBay. I?m looking for some guidance on the best
>> location for mounting the relays. They came in a nice bracket but
>> IcanTMt seem to find a good orientation. There are some phots online
>> but not many that show dual relays. Any guidance/photos from the
>> group would be very much appreciated. Related, I assume using some
>> kind of glue (silicon ahesive) instead of drilling holes would be
>> ok?
>>> >
>>> > -Warren
> 
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