Re: Crystal grinding

---------

From: Michael A. Gipe (mgipe@reliablemeters.com)
Date: Fri Mar 07 1997 - 12:13:06 EST


Marty --

Back when I was a Novice using my Hallicrafters HT-9 transmitter, I used to
regrind my crystals whenever I got tired of the frequency. Back then,
novices could only use crystal control, and you got to know the hams who
had crystals near you pretty well. I would grind the crystal and get a few
kHz shift each time. I stopped grinding a crystal when it stopped working.
 I did this even after I got my General. I just about used up all the
crystals about the time I managed to acquire a vfo. Remember the Meissner
Signal Shifter? I remember waking up on the other side of the room after I
tried to change the vfo plug-in coil without shorting the plate cap, but
that's another story...

Anyway, trying to move across a novice band is ambitious. I think that
trying to move from 3250 kHz to above 3500 is science fiction.

Mike K1MG

----------
> From: HIMES@idicl1.idi.oclc.org
> To: Low Power Amateur Radio Discussion <qrp-l@Lehigh.EDU>
> Subject:
> Date: Friday, March 07, 1997 8:24 AM
>
> Anybody know any rules 'o thumb on 'regrinding' a crystal for a new freq?

> I've got a few crystals for 3250 khz (no idea what's down there!) that
> I'd like to move up to 80m and 40m QRP freqs. Maybe that's way too much
> and I'm dreaming.
>
> Marty WB8FNH Columbus OH himes@idi.oclc.org


Search QRP-L Archives

[ QRP-L Archive | ]
[ 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 ]

---------

This archive was generated by hypermail 2b29 on Fri Jun 02 2000 - 11:33:11 EDT

kd4ab@kd4ab.org