[TowerTalk] Comtek ABC switch Box.

john at kk9a.com john at kk9a.com
Mon Nov 26 20:08:12 EST 2018


Do you mean ACB-4 switch?

If the relays are missing their covers it sounds like the previous owner
also had issues. It a good idea to look inside at things when purchasing, I
have been burned too on used items that looked mint on the outside. Internet
photos just show tape around the torrid (does yours look like this?):
https://jr6hlr.hamazo.tv/e2255083.html. If it is newer unit perhaps DXE can
assist, the previous Comtek owner is a silent key.

GL
John KK9A

From:	Wayne Kline w3ea
Date:	Mon, 26 Nov 2018 22:20:56 +0000

Over the years I have owned  ABC 160 ABC 80 and ABC 40 meter  4 Sq switch 
box...  My 80 meter  box  took a lightning hit last summer.
I picked up a used on  one of the Ham reselling sites...
Getting ready for CQWW-CW I installed it and to my surprise... it's not
working 
as it should.. Examining the unit and wringing out the truth table  the
relays  
are  A-OK.
There missing there covers and  the  torrids  are wound  on them but there
is 
NO  fiberglass tape and there held in place with   a bead of RTV across the
top.

Again the DXeng  site says there  wound on fiberglass tape    my old unit
has 
the tape

A good deal my be not so GOOD !

Wayne W3EA



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