[TenTec] Corsair II problem - fixed!

[Don Rasmussen]

Thanks to all who offered the key information on my Corsair II repair. I feel confident that Ten Tec could have fixed the radio, but not possible in 24 hours and for the price of the part (49 cents) and less labor and delivery charges. ;-)

I could not have accomplished this without some help - so thanks.

The ironic thing about this, is that both of my Corsair 2 radios have been working fine for years after the obligatory PTO rebuilds. I read suggestions here about the caps possibly going soft or bad in this era radio (last week) and think to myself - no evidence of that in mine. ;-)

Funny coincidence. A week later and we have an obvious failure. How many have we had that are not obvious - no way to know. But I have A/B/C tested these radios and they are within nominal specs to my ear. Replacing these devices is non trival using the shotgun approach, lots of boards and wires that have become quite settled over the years get moved around pretty good.

As a point of interest, the DDS frequency control in replacement for the Ten Tec PTO is working quite well. In addition to allowing finer tuning than the PTO could ever provide, like the OMNI encoders, Joe has this tachometer on the encoder and faster tuning increases the tuning rate, which is even better than the OMNI's. Contact Joe if you are interested.

http://www.n4yg.com/index.html

Joe has adapted his HW101 DDS for Corsair II and it works nicely. The tuning speed slows down for fine tuning and speeds up whan the cranking happens fast. 

http://lists.contesting.com/_tentec/2010-11/msg00539.html

Don


Re: [TenTec] Corsair II problem
from [Dr. Gerald N. Johnson] [Permanent Link][Original] 

To:  tentec at contesting.com 
Subject:  Re: [TenTec] Corsair II problem 
From:  "Dr. Gerald N. Johnson" <geraldj at weather.net> 
Reply-to:  geraldj at weather.net, Discussion of Ten-Tec Equipment <tentec at contesting.com> 
Date:  Fri, 21 Jan 2011 13:47:25 -0600 
List-post:  <tentec at contesting.com">mailto:tentec at contesting.com> 

Take tantalum over aluminum.