[Boatanchors] FT-243 Crystal for 7160 khz

[Bry Carling]

Goof info as always Glen.

I have 7159 and 7160 kHz FT243 crystals available. Quite a few folks must be on 7160 kc. 
AM these days. I have had several orders for them on that frequency in the past month.

Brian, AF4K


On 11 May 2013 at 18:39, Glen Zook wrote:

> Until November 1972, the Novice Class was limited to 7150 kHz to
> 7200 kHz.  On 22 November 1972 the Novice Class segment was changed
> to 7100 kHz to 7150 kHz.  As such, there may still be a lot of
> crystals in the 7150 kHz to 7200 kHz range hidden in junk boxes,
> etc., left over from the pre November 1972 era.
> 
> Companies like Texas Crystals, U.S. Crystals, P&R Crystals, etc.,
> used to have available just about any frequency in the 7150 kHz to
> 7200 kHz range.  Those crystals were often relabeled surplus
> crystals.  Now I have no idea as to if they actually reground
> crystals to move the frequency or if they actually measured the
> actual frequency of the surplus crystal and, if it was not on the
> "exact" frequency as on the crystal holder, they just put a new
> label on the crystal with the frequency which was measured.
>  Probably, a bit of both!
> 
> For the less expensive crystals, the companies often advertised that
> one could order a specific frequency but the actual frequency would
> be like +/- a certain amount (often 5 kHz) from the frequency
> specified.  I do know that the crystals that I had when a Novice
> Class (late May 1959 until I passed my General Class in late October
> 1959)  had frequencies like 7156 kHz, 7173 kHz, etc., on them.  It
> was the same for 80-meter and 15-meter crystals.  That is, the
> actual frequency might, or might not, end in a "5" or "0".
>  
> Glen, K9STH
> 
> 
> Website:  http://k9sth.com
> 
> 
> ________________________________
>  From: Al Klase <ark at ar88.net>
> To: boatanchors at mailman.qth.net 
> Sent: Saturday, May 11, 2013 7:36 PM
> Subject: Re: [Boatanchors] WANTED:  FT-243 Crystal for 7160 khz
>  
> 
> Hi Lee,
> 
> I think that's going to be a toughie.  The main source of FT-243's /
> CR-6/U crystals was WWII surplus.  Literally millions were produced
> for the BC-611 handie-talkie (3885 was a standard freq) and the FM
> "Jeep Radios." Both were Motorola products, and to a great extent
> we're still living off the leftovers.  Unfortunately, the very
> common Jeep radio rocks came in 25 KC increments, 7125, 7150, 7175,
> etc.
> 
> Occasionally somebody would order up a custom crystal, but it may
> have been mostly a novice thing.  Their band was 7100-7150.
> 
> If it were I, I'd round up a couple 7125's (channel 328) or 7150's
> (channel 329), and sit down with some fine wet-or-dry abrasive
> paper, and move the darn things.  No, you can't afford to have me do
> it.
> 
> You might also scrounge a color-burst crystal from an old TV, and
> double to 40 meters.  3.579545 MC x 2 = 7.15909.  Maybe close enough
> for AM.
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