[Elecraft] OT: manual & automatic tuners

[George, W5YR]

To me, the big advantage of  a manual tuner is its ability to take a
beating and not require hundreds of dollars of factory-level repair.
All internal tuners are relatively "tender" and just can't take the
high voltages and currents that sometimes prevail, especially in the
process of tuning a critical antenna system. This is not such a
critical matter at QRP power levels, of course. But even with 100
watts, improper tuning of some antenna systems can produce damaging
voltage and current levels in a tuner.

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
In the 57th year and it just keeps getting better!
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
K2 #489  IC-765 #2349 IC-756 PRO  #2121 IC-756 PRO2 #3235



----- Original Message -----
From: "Stuart Rohre" <rohre@arlut.utexas.edu>
To: <tlogan7@cox.net>; <Elecraft@mailman.qth.net>
Sent: Friday, January 10, 2003 9:27 PM
Subject: Re: [Elecraft] OT: manual & automatic tuners


> Sure there is an advantage to using a manual tuner over an
automatic.  Some
> automatics can have trouble getting 1:1 with a "soft" peak to the
resonance.
>
> Manual tuners can get to 1:1 if you are patient and know the order
of
> adjustment for maximum efficiency for your tuner.  AND, they need NO
power,
> of if the power goes out, they still work if manual!
>
> Of course, if power is out, will the rig work?  If K2 with built in
battery,
> YES.
> 72,
> Stuart K5KVH