Hi Ken,

Who do you buy the crystals from?

Regards,

Alfredo

--- In VacuumX@..., "Aurigema, Andrew N. (KSC-ASRC-491)[ASRC AEROSPACE]" wrote:
>
> And your design worked great Ken. Used it about 8 times now and it don't miss a beat. I even cleaned the crystal with some mirror stripper and it still all worked.
>
> Thanks again for the help on the XMS.
>
> Drew in sunny FLA
>
> From: VacuumX@... [mailto:VacuumX@...] On Behalf Of Ken
> Sent: Friday, July 09, 2010 10:23 AM
> To: VacuumX@...
> Subject: [VacuumX] Re: Wanted - Deposition Crystal holder
>
>
>
> I have already disposed of my only crystal holders but there is a schematic of a very reliable and easily constructed Oscillator in the files section you can build.
>
> The circuit as shown is for the modified XMS controllers I sent out. You would need to change the circuit of the oscillator by removing the 1mh choke coil and hooking the lead from the top end of the choke to 12vdc from a wall-wart or other source of power.
>
> I made a few circuit boards for this but they are all with the XMS controllers now. Easy enough to breadboard on a small piece of perfboard. The transistors can be any NPN small signal transistor with gain at 10mhz such as the 2N2222A or equiv.
>
> Ken Hunter
>
> --- In VacuumX@..., "achronicity" wrote:
> >
> > Greetings,
> >
> > I am looking for some reasonably priced crystal holders and oscillators for a deposition controller. I see some good info in the files section on crystal holders and oscillators, and while I can machine housings and such pretty easily, I would prefer to just purchase something that already works. If anyone has working sensor heads or oscillators they would part with for a reasonable price, it would save me a lot of time and trial & error. I have been looking on Ebay for awhile now, and I can find the odd oscillator for $100.00 USD (pricey IMO) and I can find deposition crystals cheap, but I have yet to stumble upon any crystal holders.
> >
> > I recently picked up a nice Leybold IC6000 4 channel deposition controller and it will be arriving soon, so I want to come up with some sensors to try it out - any ideas?
> >
> > -Achro
> >
>