My last few crystal orders went to West Crystal (www.westcrystal.com) in BC,
Canada. In the 80's and early 90's I ordered from Bomar exclusively, and
then started running into problems and switched to ICM. I was very happy
with ICM for the next ten years or so, but their prices started to get
pretty steep so I decided to try West Crystal on the recommendation of Dave
KA9FUR and several others on this list and I've been pleased thus far.
--- Jeff WN3A
> -----Original Message-----
> From: [email protected]
> [mailto:[EMAIL PROTECTED] On Behalf Of Eric Lemmon
> Sent: Sunday, November 04, 2007 10:51 AM
> To: [email protected]
> Subject: RE: [Repeater-Builder] Crystals Motorola etc
>
> Joe,
>
> I don't see a connection between how long the order takes and
> whether or not
> the crystals are flawless. Knowing that a properly-made and
> -compensated
> crystal takes time, I'd shy away from a company that has a very short
> turnaround.
>
> Perhaps the longer turnaround time with orders at ICM is due
> to ICM getting
> a lot of new business from disgruntled customers of other
> crystal suppliers.
>
> If you ever get the opportunity to tour the Bomar crystal
> plant, do so, and
> take plenty of pictures and keep careful notes. Follow a
> particular crystal
> order through the process from order-taking to shipment.
> Then, do the same
> thing at ICM. Write an article about your findings, and draw some
> conclusions. I am quite certain it will be interesting!
>
> 73, Eric Lemmon WB6FLY
>
>
> -----Original Message-----
> From: [email protected]
> <mailto:Repeater-Builder%40yahoogroups.com>
> [mailto:[email protected]
> <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of MCH
> Sent: Saturday, November 03, 2007 9:39 PM
> To: [email protected]
> <mailto:Repeater-Builder%40yahoogroups.com>
> Subject: Re: [Repeater-Builder] Crystals Motorola etc
>
> I just went (actually, AM GOING) through an order with ICM. Boy have
> they changed in the last 10 years. Orders take much longer than they
> used to. I went with ICM because this particular order I wanted to be
> flawless. I should have stuck with Bomar.
>
> Joe M.
>
> Jim Brown wrote:
> >
> > I use Bomar these days for crystals for the ham bands. I have had
> > good luck installing them myself and re-adjusting them in a
> year or so
> > back to the right frequency.
> >
> > I recently worked on a GE Delta radio that had been crystaled using
> > CUMEX and found the receive crystal had drifted over 2 kHz in the
> > several years it had been in service. It was so far off it would not
> > adust back to the original frequency until I ran the adjustment slug
> > on down through the coil form and added another slug on top of it.
> > Now with two slugs in the coil, it wound up back on frequency. I
> > don't know if it will continue to drift, or if it has settled down,
> > but for now it is working just fine.
> >
> > I used Marden for crystals until I got into a beef with them on a
> > receive frequency and gave up after sending an operating
> crystal back
> > to them a couple of times and telling them what frequency
> it operated
> > on, and them sending it back and telling me what frequency they
> > thought it operated on.
> >
> > 73 - Jim W5ZIT
> >
> > [EMAIL PROTECTED] <mailto:w7hsg%40comcast.net>
> <mailto:w7hsg%40comcast.net> wrote:
> >
> > Hi All
> >
> > Looking for information on who makes crystals for channel
> > elements.
> >
> > Micor's and Mitrek
> >
> > Yes, I know that International makes them but the price is
> > high.
> >
> > I have had good luck putting crystals in old channel
> > elements and changing the caps as necessary
> >
> > to achieve reasonable stability. Used to use CUMEX in El
> > Paso but they seem to be gone
> >
> > Ralph, W7HSG
> >
> > From: Kris Kirby <[EMAIL PROTECTED]
> <mailto:kris%40catonic.us> <mailto:kris%40catonic.us> >
> > To: [email protected]
> <mailto:Repeater-Builder%40yahoogroups.com>
> <mailto:Repeater-Builder%40yahoogroups.com>
> > Subject: Re: [Repeater-Builder] Re: UHF Radio
> > recommendations ??
> > Date: Sat, 3 Nov 2007 23:32:48 +0000
> >
> > On Fri, 2 Nov 2007, wb6ymh wrote:
> > > The 30 watt version is a better radio for repeater service
> > since all
> > > solid state transmitters are very inefficient when run
> > below their
> > > designed output. A 30 watt Mitrek running at 15 watts will
> > probably
> > > last forever, but a 50 watt Mitrek running at 20 watts
> > gets way too
> > > hot for my tastes. It would probably be ok with a fan, but
> > I really
> > > didn't want a fan for numerous reasons.
> >
> > Well the radio is only specified to run a certain percentage
> > in transmit
> > anyway, but at this point, you can probably get a dump-truck
> > load of
> > Mitreks for the asking. That will give you enough radios to
> > keep the
> > repeater running until Doomsday. All you need is a few
> > channel elements,
> > and you can skip using lightning protection altogether.
> >
> > If a Mitrek falls in the forest, does it make a noise?
> >
> > --
> > Kris Kirby, KE4AHR <[EMAIL PROTECTED]
> <mailto:kris%40catonic.us> <mailto:kris%40catonic.us> >
> > But remember, with no superpowers comes no responsibility.
> > --rly
> >
> > __________________________________________________
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>
>
>
>
>
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