Where to buy crystals?

If you can hack in another divide-by-2 stage, Mouser and Digi-Key both carry 17.734475 MHz crystals, which would give you 8.8672375 MHz.

If this crystal's only job is to provide a digital logic clock, Mouser and Digi-Key also sell programmable crystal oscillators for around $7 to $10. You tell them what frequency you want and they program it for you before shipping. They come in little cans about the size of an

8-pin or 16-pin DIP IC; you supply power (usually 3.3 V or 5 V) and ground and square waves come out.

Matt Roberds

Thanks Matt.

I don't have space for 16 pin DIP or such. This is old equipment being repaired. Failed crystal. It clocks the video data on a PAL video board (not PC type -- proprietary).

I learned something today. :) I guess if you are clocking something digital that doesn't have strict requirements on the clock, they are OK. For the OP's application, where the output will eventually be analog video, they might not work as well. I was just trying to come up with a way to meet his stated and implied requirements (one-off repair, desire to get parts from the US.)

Matt Roberds

I'd certainly investigate any discarded Philips TV - the ones with a big IC for IF/decoder/timebase are usually dual or multi-standard.

A board I had laying about (not Philips) had 4.433 & 3.579 crystals side by side - in the Philips ones (or using their chip) the crystal is usually twice 4.433.

Hello

I have lots of 4.433MHz in a surface mt 2 pin minican \style. Would donate two or more if wanted. the freq is 1/2 of your desired freq. Made for PAL systems.

KW

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Lesmith Crystals in Canada is where I got some old crystals for a scanner (hand me down toy for the kids) (905) 844-4505

Michael Lalonde - Sudbury, Ontario - M&J Mining

Hello

I have lots of 4.433MHz in a surface mt 2 pin minican \style. Would donate two or more if wanted. the freq is 1/2 of your desired freq. Made for PAL systems.

KW