Where to buy crystals?

[DaveC]

I need a 2-pin crystal, 8.86723 (PAL video standard).

Where do you get these now? Seems nobody carries them, not even ham radio
shops. I'd visit a ham swap meet but I can't wait.

I can get them from Ireland...

<http://www.donberg.co.uk/catalogue/passive_components/quartz_crystals/8.86723
8mhz.html>

Any sources in the States?

Thanks.

(I'm in N. California.)

 

[DaveC]

When I Googled "custom frequency crystals," Google indicated over six

million hits. The frequency you gave is highly specialized. Do you
really need such accuracy? Many years ago as a ham, I used Bon-Ami to
grind away at crystals to rais their frequency. Be adventurous.

Yes I considered custom crystals, but I'm holding out of one domestic source
that someone in the "groups" knows of...

If we're talking history, when designed were published in electronics
magazines inevitably the crystal that drove them were 9.54545 (NTSC standard)
here in USA and Japan, et. al., or 8.86723 (PAL standard) in Europe, et. al.
These 2 crystals were ubiquitous.

Now I cant steal one.

Thanks.

 

[[email protected]]

Yes I considered custom crystals, but I'm holding out of one domestic source
that someone in the "groups" knows of...

If we're talking history, when designed were published in electronics
magazines inevitably the crystal that drove them were 9.54545 (NTSC standard)
here in USA and Japan, et. al., or 8.86723 (PAL standard) in Europe, et. al.
These 2 crystals were ubiquitous.

Now I cant steal one.

9.5454MHz is available ($.81 for one at DigiKey).

You might try here, too:
http://radiohobbystore.com/crystals-and-filters/8867.html
(brought to you by your local search engine)

 

[[email protected]]

Followups set to sci.electronics.components .

I need a 2-pin crystal, 8.86723 (PAL video standard).

Where do you get these now?

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

 

[DaveC]

9.5454MHz is available ($.81 for one at DigiKey).

I need 8.86723

You might try here, too:
http://radiohobbystore.com/crystals-and-filters/8867.html

I saw that one too: Israel. I'm searching for a local (USA) source.

Thanks.

 

[DaveC]

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).

 

[Spehro Pefhany]

9.5454MHz is available ($.81 for one at DigiKey).

You might try here, too:
http://radiohobbystore.com/crystals-and-filters/8867.html
(brought to you by your local search engine)

Israel (or perhaps Palestine).

Alib*ba has them for 30 pcs for $13. shipped.


Best regards,
Spehro Pefhany

 

[[email protected]]

Those ones are PLLs internally, and so have _horrible_ phase noise
compared with a real crystal oscillator, even one of the crappy ones
made from gates.

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

 

[kilowatt]

I need a 2-pin crystal, 8.86723 (PAL video standard).



Where do you get these now? Seems nobody carries them, not even ham radio

shops. I'd visit a ham swap meet but I can't wait.



I can get them from Ireland...



<http://www.donberg.co.uk/catalogue/passive_components/quartz_crystals/8.86723

8mhz.html>



Any sources in the States?



Thanks.



(I'm in N. California.)

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

 

[Michael Lalonde]

x-no-archive: yes

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


"kilowatt" wrote in message

I need a 2-pin crystal, 8.86723 (PAL video standard).



Where do you get these now? Seems nobody carries them, not even ham radio

shops. I'd visit a ham swap meet but I can't wait.



I can get them from Ireland...



<http://www.donberg.co.uk/catalogue/passive_components/quartz_crystals/8.86723

8mhz.html>



Any sources in the States?



Thanks.



(I'm in N. California.)

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