And as Garey has reminded me many times: "We do this for fun, right?" 73,
Al, W8UT www.boatanchors.org www.hammarlund.info "There is nothing -- absolutely nothing -- half so much worth doing as simply messing about in boats" Ratty, to Mole On 9/22/2011 2:01 PM, Eddy Swynar wrote:
*/Hi Guys,/* Am I /cursed/here, or what...?! After literally /weeks/of flawless, dependable service, the PTO in my /Drake T-4X/transmitter has returned to its good ol' wobbly self again (/SIGH!/). It started last night---thinking that maybe the PTO signal was being affected by something external to it, to-day I meticulously cleaned each & every wafer / contact on each & every switch, cleaned the tube sockets / pins of all of the tubes & crystals, and visually inspected everything that I could under the chassis... My reward for all this work...? /Continuous/wobbliness / warbling of my signal...! I think I'll do what Garey did with Steve's PTO, & simply wholesale replace that white tubular capacitor that's inside the PTO (in the T-4X that I have, it's the cap that has one lead soldered to the main horizontal PTO circuit board, with the other lead connected up top the front / vertical "sub" board). If memory serves me well, Garey, you deduced, from my description of the colour dots on my cap, that it is a 33 pfd. unit. I think I have some silver mica caps on hand here that I can sub it with---may have to parallel whatever I replace in there with a small trimmer of some description to preserve linearity... /WHAT A PAIN...!!!/ */~73~ de Eddy VE3CUI - VE3XZ/*
_______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
