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Old June 6th 04, 05:10 AM
Gregg
 
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Default WTD: 74AS192 or 74S192 counters

I'm building a SWRX with PLL frequency generator and need a 1/2 dozen of
these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.

I live in Chilliwack, BC, Canada, V0X 1X0 for shipping calculations.

Thanks all!

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca
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Old June 6th 04, 02:12 PM
Leon Heller
 
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"Gregg" wrote in message
news:COwwc.24725$jl6.6833@edtnps89...
I'm building a SWRX with PLL frequency generator and need a 1/2 dozen of
these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.


I'd use a CPLD - it'll be faster, cheaper and take up less board space. You
can use it for the rest of the logic as well, including the phase detector.

73, Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller


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Old June 6th 04, 02:12 PM
Leon Heller
 
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"Gregg" wrote in message
news:COwwc.24725$jl6.6833@edtnps89...
I'm building a SWRX with PLL frequency generator and need a 1/2 dozen of
these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.


I'd use a CPLD - it'll be faster, cheaper and take up less board space. You
can use it for the rest of the logic as well, including the phase detector.

73, Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller


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Old June 6th 04, 03:55 PM
Gregg
 
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Behold, Leon Heller signalled from keyed 4-1000A filament:

"Gregg" wrote in message
news:COwwc.24725$jl6.6833@edtnps89...
I'm building a SWRX with PLL frequency generator and need a 1/2 dozen
of these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.


I'd use a CPLD - it'll be faster, cheaper and take up less board space.
You can use it for the rest of the logic as well, including the phase
detector.

73, Leon


Hi Leon,

Thanks. But as a tubehead myself, how on earth do I go about doing this?

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca
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Old June 6th 04, 03:55 PM
Gregg
 
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Default

Behold, Leon Heller signalled from keyed 4-1000A filament:

"Gregg" wrote in message
news:COwwc.24725$jl6.6833@edtnps89...
I'm building a SWRX with PLL frequency generator and need a 1/2 dozen
of these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.


I'd use a CPLD - it'll be faster, cheaper and take up less board space.
You can use it for the rest of the logic as well, including the phase
detector.

73, Leon


Hi Leon,

Thanks. But as a tubehead myself, how on earth do I go about doing this?

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca


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Old June 6th 04, 04:12 PM
Leon Heller
 
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Default

"Gregg" wrote in message
news:yfGwc.23554$DV4.9103@clgrps13...
Behold, Leon Heller signalled from keyed 4-1000A filament:

"Gregg" wrote in message
news:COwwc.24725$jl6.6833@edtnps89...
I'm building a SWRX with PLL frequency generator and need a 1/2 dozen
of these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.


I'd use a CPLD - it'll be faster, cheaper and take up less board space.
You can use it for the rest of the logic as well, including the phase
detector.

73, Leon


Hi Leon,

Thanks. But as a tubehead myself, how on earth do I go about doing this?


You've got a lot of learning to do. 8-)

Try this web page of mine:

http://www.geocities.com/leon_heller/pld_starter.html

Leon


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Old June 6th 04, 04:12 PM
Leon Heller
 
Posts: n/a
Default

"Gregg" wrote in message
news:yfGwc.23554$DV4.9103@clgrps13...
Behold, Leon Heller signalled from keyed 4-1000A filament:

"Gregg" wrote in message
news:COwwc.24725$jl6.6833@edtnps89...
I'm building a SWRX with PLL frequency generator and need a 1/2 dozen
of these chips. They are unobtanium from my Vancouver suppliers.

I need the speed of AS or S because the master osc. will be 60-90 MHz.


I'd use a CPLD - it'll be faster, cheaper and take up less board space.
You can use it for the rest of the logic as well, including the phase
detector.

73, Leon


Hi Leon,

Thanks. But as a tubehead myself, how on earth do I go about doing this?


You've got a lot of learning to do. 8-)

Try this web page of mine:

http://www.geocities.com/leon_heller/pld_starter.html

Leon


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