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Dow-key DKC-TR
On Mon, 25 Jan 2010, cullen wrote:
On Jan 19, 4:04�pm, Edward Knobloch wrote: cullen K5HAL wrote: Looking for information on Dow-Key DKC-TR tube type TR switch. I have one without documentation. I found the box it came in, no instructions. Thanks everyone. I had found most of the references. The one piece of information I did not have in hand was the wire color code. I used this for years with an HQ-150, CE-20A plus the LA-1. The sheet on the DKC-TRM did not satisfy my curiosity and my old handbooks are now in storage. Now that I have your attention, why is the tube type TR switch no longer made or used? The idea seems great. Regards, cullen Very few people use separate receivers and transmitters. Few are interested in the sort of break-in that you could get from a TR switch, they can live with relay changeover. Transceivers sometimes use the same thing, but it's done with semiconductors not tubes. Michael VE2BVW |