Kris, Not sure how well this fit up, but there was an article in QST for adding RIT to the TR3. I had it on my TR3, but backed it out before I sold it.
Jun 1966 - QST (Pg. 20) Offset Tuning and F.S.K. for the Drake TR-3 Author: Swanson, Elston H., W2PEE Although I can not speak for how to do this in a TR4cw, the concept is good. You might look at a schematic of the TR4CW/RIT and see how Drake did that. Might work for you better than the article on the TR3. Let the group now how it goes. 73, Ron WD8SBB --- On Mon, 7/18/11, Kris Merschrod <[email protected]> wrote: > From: Kris Merschrod <[email protected]> > Subject: [Drakelist] RIT retrofit for the TR-4C > To: [email protected], "drakelist" <[email protected]> > Date: Monday, July 18, 2011, 1:50 PM > Day dreaming again! I am > working on the restoration of a nice TR-4C. One of the > great improvements on the TR-4CW was to offer the RIT. > Looking at the RIT board in the manuls makes it look like a > snap to make one and add it to the TR-4C and replace the NB > off/on swicth with some sort of a 10 K pot that would have a > push off and off buiult into it. > > Any suggestions? > > Kris KM2KM > 607 -257-1734 > Team Leader > Ithaca, NY > > _______________________________________________ > Drakelist mailing list > [email protected] > http://mailman.zerobeat.net/mailman/listinfo/drakelist > _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
