On Fri, 05 Sep 2008 21:22:33 -0400, Jack Smith wrote: >What I found is that the 604 ohm resistor between U29's output amplifier >stage and the TTC-108 transformer primary winding forces the TTC-108 >isolation transformer to operate in a regime where the performance >improving effects of a zero ohm driving source are not available. Hence, >the TTC-108's 0.5% THD performance significantly limits the LIN OUT >ports performance.
Your advice is consistent with mine, except that I would eliminate the transformers completely. They are not needed if all the interconnected gear is bonded together, and they are susceptible to magnetic fields. 73, Jim K9YC _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
