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Old May 25th 04, 05:23 PM
Leon Heller
 
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"John" wrote in message
...
Does anyone know of a multimode detector IC that will handle SSB, AM and

FM?
Looking at an old ARRL handbook I can see LM373. Is there a more modern
chip?


You can do all those modes with a DSP. 8-)

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


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Old May 28th 04, 06:39 AM
Gregg
 
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Behold, Leon Heller signalled from keyed 4-1000A filament:

"John" wrote in message
...
Does anyone know of a multimode detector IC that will handle SSB, AM
and

FM?
Looking at an old ARRL handbook I can see LM373. Is there a more
modern chip?


You can do all those modes with a DSP. 8-)

Leon


How many 12AU7's do I need to make that? ;-p

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca
  #13   Report Post  
Old May 28th 04, 06:39 AM
Gregg
 
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Behold, Leon Heller signalled from keyed 4-1000A filament:

"John" wrote in message
...
Does anyone know of a multimode detector IC that will handle SSB, AM
and

FM?
Looking at an old ARRL handbook I can see LM373. Is there a more
modern chip?


You can do all those modes with a DSP. 8-)

Leon


How many 12AU7's do I need to make that? ;-p

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca
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Old May 28th 04, 07:01 AM
Michael Black
 
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Gregg ) writes:
Behold, Leon Heller signalled from keyed 4-1000A filament:

"John" wrote in message
...
Does anyone know of a multimode detector IC that will handle SSB, AM
and

FM?
Looking at an old ARRL handbook I can see LM373. Is there a more
modern chip?


You can do all those modes with a DSP. 8-)

Leon


How many 12AU7's do I need to make that? ;-p

Well, you wouldn't be using 12AU7's.

At the very least, you'd be using Compactrons to get maximum tube
count per envelope.

But likely, Nuvistors or sub-miniature tubes would be the only way
to do it, if it could be done, since they are so much smaller.

Michael VE2BVW

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Old May 28th 04, 07:01 AM
Michael Black
 
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Gregg ) writes:
Behold, Leon Heller signalled from keyed 4-1000A filament:

"John" wrote in message
...
Does anyone know of a multimode detector IC that will handle SSB, AM
and

FM?
Looking at an old ARRL handbook I can see LM373. Is there a more
modern chip?


You can do all those modes with a DSP. 8-)

Leon


How many 12AU7's do I need to make that? ;-p

Well, you wouldn't be using 12AU7's.

At the very least, you'd be using Compactrons to get maximum tube
count per envelope.

But likely, Nuvistors or sub-miniature tubes would be the only way
to do it, if it could be done, since they are so much smaller.

Michael VE2BVW



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Old May 28th 04, 10:18 AM
David J Windisch
 
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All of the available lot plus the next production run ;o)
73, Dave, N3HE

"Gregg" wrote in message
news:LgAtc.27519$SQ2.5451@edtnps89...
SNIP
How many 12AU7's do I need to make that? ;-p

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



  #17   Report Post  
Old May 28th 04, 10:18 AM
David J Windisch
 
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All of the available lot plus the next production run ;o)
73, Dave, N3HE

"Gregg" wrote in message
news:LgAtc.27519$SQ2.5451@edtnps89...
SNIP
How many 12AU7's do I need to make that? ;-p

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



  #18   Report Post  
Old May 28th 04, 11:41 AM
J M Noeding
 
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On Tue, 25 May 2004 15:47:32 GMT, "Harold E. Johnson"
wrote:


Does anyone know of a multimode detector IC that will handle SSB, AM and

FM?
Looking at an old ARRL handbook I can see LM373. Is there a more modern
chip?

I have some 373's and I think, some 273's as well if you'd like to try your
hand at one. (free to good home)

W4ZCB

It was a thread short while ago, you may also find some info on my
page http://home.online.no/~la8ak/c11.htm - unfortunately I had to PC
crashes this year so I cannot give more info, but believe Pete KE9OA
had some boards using somewhat more up-to-date solution

73
jm
  #19   Report Post  
Old May 28th 04, 11:41 AM
J M Noeding
 
Posts: n/a
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On Tue, 25 May 2004 15:47:32 GMT, "Harold E. Johnson"
wrote:


Does anyone know of a multimode detector IC that will handle SSB, AM and

FM?
Looking at an old ARRL handbook I can see LM373. Is there a more modern
chip?

I have some 373's and I think, some 273's as well if you'd like to try your
hand at one. (free to good home)

W4ZCB

It was a thread short while ago, you may also find some info on my
page http://home.online.no/~la8ak/c11.htm - unfortunately I had to PC
crashes this year so I cannot give more info, but believe Pete KE9OA
had some boards using somewhat more up-to-date solution

73
jm
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