Re: Crystal grinding

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From: John R. Morris (n0acs@juno.com)
Date: Sat Mar 08 1997 - 02:32:32 EST


"A MEN"!
On Fri, 7 Mar 1997 09:13:06 -0800 "Michael A. Gipe"
<mgipe@reliablemeters.com> writes:
>
>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
>
>


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