[R-390] R-389 PTO

[Roy Morgan]

On May 6, 2009, at 12:32 PM, Jerry Boman wrote:

> ... have not yet transmitted with my T-195 partly due to
> this thread as it has a auto tune mechanism...if anyone knows if the  
> T-195 is or might be
> notorious for doing the same thing. Anybody know?.

Jerry,

First: Welcome to the list.  We are glad to have you.   It's polite  
and considerate to those who have slow internet connections to snip  
out most or all of the message you are replying to, especially if you  
get the list in digest forom. This happens to be more important on a  
couple of lists where the moderator is blind and relies on speech- 
making software to read the messages.  I'm in the habit of including  
just enough of the posted message to let folks who may not be  
following the thread closely see what I'm talking about.  This may  
well be mostly because *I* often loose the thread and come in on  
something in the middle of the discussion.  Also, it can happen that  
what I say doesn't make too much sense. heheh

The T-195's auto tune system sets the innards to a number of preset  
frequencies.  The mechanisms are built to do all sorts of coming and  
going and reversals of motion, I suspect.  My guess is that no real  
harm will come to the thing if it's not managed well.  (DO lubricate  
the thing to avoid motor overload!)

The R-389 motor in question is meant to tune the radio across its  
tuning range quickly since it can be MANY MANY turns of the manual  
knob to do the job by hand.  The mechanism CAN, and apparently has,  
smashed the innards of the PTO in many cases. It's quite a different  
system.

Roy

Roy Morgan
k1lky at earthlink.net
529 Cobb St.
Groton NY, 13073
Home: 607-898-3607
Cell: 301-927-7794