Maker Pro
Maker Pro

100kHz crystal

P

Peter Howard

Jan 1, 1970
0
Hi all,
Anyone know what ever happened to the 100kHz crystal as used for generating
spot marker frequencies on old time HF receivers?
I visited the website of Hy-Q Australia and they don't go that low.
There are quite a few on Ebay, all pulled from old equipment. I would like a
new one though. Are they still obtainable from anywhere?

Any other ideas about generating 100kHz markers? Perhaps a 1mHz crystal
divided by 10 using digital divider IC?

Peter Howard.

Current residents of my crap filter:
soundhaspriority
Robert Morein
George Middius
Phil Allison
 
B

Brian Goldsmith.

Jan 1, 1970
0
Any other ideas about generating 100kHz markers? Perhaps a 1mHz crystal
divided by 10 using digital divider IC?

Peter Howard.

Current residents of my crap filter:
soundhaspriority
Robert Morein
George Middius
Phil Allison


****** Er,I don't think you will be dividing a 1mHz crystal down to 100
kHz,in fact I think you will never see a 1 mHz crystal in your entire
lifetime.

Current residents of my crap filter:
Anyone who writes to technical newsgroups and who really don't have a clue.

Brian Goldsmith.
 
P

Poxy

Jan 1, 1970
0
Brian Goldsmith. said:
Current residents of my crap filter:
Anyone who writes to technical newsgroups and who really don't have a clue.
Brian Goldsmith.

What? The only entry in your "crap filter" is yourself ?
 
P

Peter Howard

Jan 1, 1970
0
Brian Goldsmith. said:
****** Er,I don't think you will be dividing a 1mHz crystal down to 100
kHz,in fact I think you will never see a 1 mHz crystal in your entire
lifetime.

Current residents of my crap filter:
Anyone who writes to technical newsgroups and who really don't have a
clue.

Brian Goldsmith.

Try
http://www.maplin.co.uk/Module.aspx?ModuleNo=478&TabID=1&C=SEO&U=strat15&doy=search
1Mhz crystal top of the list. Hy-Q can also supply one.

I do have a 2mHz crystal. Today I breadboarded it with a 4001 as oscillator
and a 4017 decade counter similar to this idea here:
http://myweb.cableone.net/adamsmed2/id6.htm
Result was 200kHz out at about 2V. I think I'm on the right track.

I think you are mistaken in both of your assertions above. However, as you
appear to be a singularly ill-natured personality no further discussion is
sought. Life is too short.

Cordially yours,
Peter Howard.

Current residents of my crap filter:
soundhaspriority
Robert Morein
George Middius
Phil Allison
Brian Goldsmith
 
R

rebel

Jan 1, 1970
0
Try
http://www.maplin.co.uk/Module.aspx?ModuleNo=478&TabID=1&C=SEO&U=strat15&doy=search
1Mhz crystal top of the list. Hy-Q can also supply one.

I do have a 2mHz crystal. Today I breadboarded it with a 4001 as oscillator
and a 4017 decade counter similar to this idea here:
http://myweb.cableone.net/adamsmed2/id6.htm
Result was 200kHz out at about 2V. I think I'm on the right track.

I think you are mistaken in both of your assertions above. However, as you
appear to be a singularly ill-natured personality no further discussion is
sought. Life is too short.

Cordially yours,
Peter Howard.

Current residents of my crap filter:
soundhaspriority
Robert Morein
George Middius
Phil Allison
Brian Goldsmith

He's one of the resident pedants, who is obviously inflamed by your use of *m*
instead of *M*. I'm sure - with the exception of those in your list above -
everyone reading your post knew what you wanted without making a big hoo-ha.
 
B

Brian Goldsmith.

Jan 1, 1970
0
in message

****** Er,I don't think you will be dividing a 1mHz crystal down to 100
kHz,in fact I think you will never see a 1 mHz crystal in your entire
lifetime.


Try
http://www.maplin.co.uk/Module.aspx?ModuleNo=478&TabID=1&C=SEO&U=strat15&doy=search
1Mhz crystal top of the list. Hy-Q can also supply one.

I do have a 2mHz crystal.


***** There is no such thing as a 2mHz crystal.Why do you persist in
perpetuating your error,have a look at the description given by Maplin
above.


Today I breadboarded it with a 4001 as oscillator
and a 4017 decade counter similar to this idea here:
http://myweb.cableone.net/adamsmed2/id6.htm
Result was 200kHz out at about 2V. I think I'm on the right track.


****** Are you really that dense?You breadboarded an oscillator divider
using a 2MHz crystal not a 2mHz crystal.


You really haven't got a clue,have you?


Brian Goldsmith.
 
B

Brian Goldsmith.

Jan 1, 1970
0
Poxy said:
Current residents of my crap filter:
Anyone who writes to technical newsgroups and who really don't have a clue.
Brian Goldsmith.

What? The only entry in your "crap filter" is yourself ?


***If I didn't crap Poxy,you would starve!

Brian Goldsmith.
 
P

Peter Howard

Jan 1, 1970
0
rebel said:
On Sun, 05 Nov 2006 09:51:18 GMT, "Peter Howard"
<[email protected]>
wrote:


He's one of the resident pedants, who is obviously inflamed by your use of
*m*
instead of *M*. I'm sure - with the exception of those in your list
above -
everyone reading your post knew what you wanted without making a big
hoo-ha.

Well, thank you for clearing that up, rebel. The jerk in question only had
to point out my error in plain English instead of making an ass of himself.
He earned a one way ticket to join his boyfriend Phil on Crap Filter
Island.
As I said, life is too short. I prefer actually making stuff to playing the
straight man in other people's Usenet psychodramas.

Thanks again,
Peter Howard.
 
B

Bob Parker

Jan 1, 1970
0
rebel said:
He's one of the resident pedants, who is obviously inflamed by your use of *m*
instead of *M*. I'm sure - with the exception of those in your list above -
everyone reading your post knew what you wanted without making a big hoo-ha.

Agreed.
 
P

Peter Howard

Jan 1, 1970
0
ER said:
Just a small point, the 200kHz waveform most probably wouldn't be 2V, it
would be whatever voltage you are using in your circuit (5V?) but the
multimeter would average it to 2V? I do a bit of experimenting with PICs
and at 5V supply that is exactly what happens when you try to measure
the oscillator voltages with a multimeter, I get a bit above 2V reading
both oscillator pins. It stands to reason but I am not sure why it is
not 2.5V, either the duty cycle of the waveform is not 50% or multimeter
summing is non-linear.

Eugene.

Thanks for the input. I took a quick look with an oscilloscope just to
assure myself that the thing WAS working and it looked to be around 2V
without straining my eyes counting divisions on a 50mm screen. Anyway, a
goodly amount of output. I'll get more scientific when I get the crystal I
want and tidy up my breadboard. Believe me, if I had enough years left in my
life I'd learn to do it with PICs and to heck with those thirty year old
4000 series ICs.

Regards,
Peter Howard.
 
Top