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From: tomb@hplsla.HP.COM (Tom Bruhns)
Newsgroups: sci.electronics
Subject: Re: Crystals or oscillators
Message-ID: <5170140@hplsla.HP.COM>
Date: 31 May 91 17:11:36 GMT
References: <0fUz02aK08T.01@JUTS.ccc.amdahl.com>
Organization: HP Lake Stevens, WA
Lines: 38

kls30@duts.ccc.amdahl.com (Kent L Shephard) writes:

> I need some crystals or oscillators that have frequencies of:

(frequencies omitted)

> Does anyone know for sure a source for thses parts in very, very small
> quantities.   I know where I can have them made but I don't have $100
> to spend for just 2 crystals.

> Reply via email, not everyone cares if I find crystals or not.

This seems like almost an FAQ, so I'll post.  Some crystal manufacturers
have minimum orders far below $100.  They make what you want, within
some limits:  they have a variety of case styles and tolerances and
oven/non-oven options to choose from.  You can within limits pick
fundamental or overtone mode.  You choose the load capacitance (or
series resonance).  Here are two to try:

JAN Crystals, 2341 Crystal Drive, Ft. Myers, FL 33906
(800)237-3063.  They accept VISA orders.  .01% tolerance
crystals in the range you mentioned are around $5 each, I believe.
No minimum order that I'm aware of, but they might not like a $5
VISA order.

International Crystal Manufacturing, 701 W. Sheridan (PO Box 26330)
Oklahoma City, OK 73126.  (800)426-9825.  Prices slightly higher
than JAN; don't know if they accept VISA orders over the phone.

Jan is a bit slow (a couple weeks, typically).  International used
to be very fast, but I haven't ordered from them in years 'n years,
and they don't advertise speed like they used to.  Jan does have an
express service, still much under $100!


Custom crystals are cheap enough that unless you aren't picky about
the frequency (or it's a really standard frequency like 3.579545MHz),
you are better off ordering than asking.