Source for crystals?

**druid** · Wed 23rd Nov 2011, 18:32

I want do to some experimenting with crystal oscillators - is there a good source online for crystals? I'm looking for a wide variety of fundamental frequencies: 1kHz, 1 MHz, around 7 Mhz, 14 Mhz, etc.

Any leads?
druid
VA7LAS

**Sudden** · Wed 23rd Nov 2011, 19:49

Hi Druid
There is a UK company at www.quartslab.com

**K7KBN** · Wed 23rd Nov 2011, 21:43

http://lmgtfy.com/?q=radio_crystals

**druid** · Thu 24th Nov 2011, 00:22

Hmmm.... well, strangely enough quartzlab doesn't have 7.000 MHz crystals (or in fact any in the 40M band). And of course I've done a Google search, but the results may not be places to BUY crystals, or are links to other links or lists, or links to eBay, or sites describing "crystallography"...

I was hoping for an actual recommendation: where do YOU get your crystals from?

druid
VA7LAS

**5B4AJB** · Thu 24th Nov 2011, 03:18

Crystals which work at amateur fundamentals are not common. You may find one or two "in band" from common electronics but no more than that.
I have a tray of scavenged crystals, mostly junk because they are either out of band to begin with or not multiplyable (is that even a word?)

I wrote a small BASIC program which you could type in the marked frequency and it showed the harmonics, never got round to making it sing & dance when one was found within the Amateur bands, but it was useful to go through all those duff crystals I have...

10 REM Crystal harmonics
20 INPUT "Frequency ";f
30 PRINT
40 FOR n=1 TO 20 STEP 2: LET h=f*n: PRINT h: NEXT n

**techiesteve** · Thu 24th Nov 2011, 07:19

I've bought HC-49/u size amateur band crystals either via eBay or the G-QRP club sales. They tend to be for the low CW end of the bands. Another good source for larger old style crystals is http://www.af4k.com/crystals.htm, but more expensive.

**G6NHU** · Thu 24th Nov 2011, 08:36

Quartslab would always cut custom crystals to order, I bought quite a few from them back in the day. Don't they do that any more?

The answer to "Who do you buy your crystals from?" is "Quartslab".

**K7KBN** · Thu 24th Nov 2011, 17:45

International Crystals can make just about any crystal package/frequency/characteristic you specify. Might be spendy, but ...

Also, try here: http://www.surplussales.com/Crystals/Crystals.html