Hi Garey, Well, it definitely does NOT take a heckuva lot of effort to pull that spring on my PTO. To-day I disconnected the spring entirely & had to apply pressure to the OTHER side of the yoke to make the frequency jiggle---so I guess it's doing its job, alright, maintaining some modicum of pressure on the yoke...
Yes, the more I get "into" this thing, the more I can see where even one weak link in the MECHANICAL chain of things can cause no end of electronic vexation! I think Ill give the "sliders & riders" on mine a good bath in isopropyl rubbing alcohol next---that'd be far easier to do than dis-mantling the works, and as I said before, the solution is probably just oh-so-easy that it's staring me in the face... ~73~ de Eddy VE3CUI - VE3XZ ************************************************************************************************************************ On 2011-08-01, at 9:59 AM, Garey Barrell wrote: > Eddy - > > Yes, the yoke is directly connected to the slug, and therefore very > susceptible to ANY movement. This is the reason for the spring to the shield > can, i.e., keep everything 'solidly' engaged. Maybe just a weak spring? It > should take a definite effort to stretch the spring to hook it. Also any > dirt or corrosion on the rider bar can cause 'bumps'. It should be 'clean > and dry'.......... > > 73, Garey - K4OAH > Glen Allen, VA > > Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line > and TR-4/C Service Supplement CDs > <www.k4oah.com> > > > Eddy Swynar wrote: >> Hi Guys, >> >> To-day I had occasion to take the top cover off of my T-4X transmitter,& >> examine the PTO mechanics a bit... >> >> Question: how "normal" is it for the frequency to "jump& jiggle" whenever >> even the lightest of physical force is applied to the yoke...? Is this >> expected, or should the frequency stay put no matter what, i.e. there should >> be no "slack / sloppiness" in the assembly...? >> >> I noticed a bit of "play" in the yoke of my PTO---enough that if I applied >> even just a modicum of pressure from a wooden chopstick, I could "jiggle" >> the frequency. Does this indicate that something is, indeed, loose in mine& >> in need of tightening, or all they all like this...? >> >> The jiggle in my PTO sounds a LOT like the jiggle than I can induce with >> manual pressure---maybe the key to our woes in this regard has a MECHANICAL >> solution, rather than an electronic one...? >> >> I'm gonna remove the PTO cover,& the circuit board itself, as my next step. >> Maybe I'll be able to see something therein that requires "tightening"...I >> don't know. >> >> ~73~ de Eddy VE3CUI - VE3XZ >> >> _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
