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Lou Franklin wrote:
Please visit our Web site, where you can download our unique catalog
of CB Radio Specialties, or check out our most popular schematics
(TriPower RF linear amp, Dynamic Speech Processor, FM3 circuit, Roger
Beep, etc.) and other CB technical articles at:

Since I'm designing my own speech processor... I couldn't resist
hooking up Lou's to test the performance. Actually, it did work... but
like I suspected... was quite distorted. He claims in his ad that this
distortion is not audible. I'm sorry to say that it sounded very fuzzy
on my test headset. This is what it looked like on my bench.
http://www.telstar-electronics.com/pic003.jpg

"Telstar Electronics" wrote in message
oups.com...
Lou Franklin wrote:
Please visit our Web site, where you can download our unique catalog
of CB Radio Specialties, or check out our most popular schematics
(TriPower RF linear amp, Dynamic Speech Processor, FM3 circuit, Roger
Beep, etc.) and other CB technical articles at:

Since I'm designing my own speech processor... I couldn't resist
hooking up Lou's to test the performance. Actually, it did work... but
like I suspected... was quite distorted. He claims in his ad that this
distortion is not audible. I'm sorry to say that it sounded very fuzzy
on my test headset. This is what it looked like on my bench.
http://www.telstar-electronics.com/pic003.jpg


Just looks like a brute force clipper to me with no filtering. FUZZY is the
right word, this is very simlar to the circuit used in guitar some
fuzzboxes.

Jimmie D wrote:
Just looks like a brute force clipper to me with no filtering. FUZZY is the
right word, this is very simlar to the circuit used in guitar some
fuzzboxes.

Actually, it does have some RC filtering... but evidently that's not
sufficient.

www.telstar-electronics.com

"Telstar Electronics" wrote in message
ps.com...
Jimmie D wrote:
Just looks like a brute force clipper to me with no filtering. FUZZY is
the
right word, this is very simlar to the circuit used in guitar some
fuzzboxes.

Actually, it does have some RC filtering... but evidently that's not
sufficient.

www.telstar-electronics.com

That why it is best to operate a clipper at RF level say 455khz then clip
and filter. That way all the harmonic energy generated will be outside the
bandpass of the filter. Then convert back to audio.These can be really easy
and cheap to make. There used to be a guy down in BAxley Ga that sold these
units dor about $50 a piece. He had about $15 in parts and about an hr in
time in each one. Something to do fill in the idle time.

On Sat, 6 Jan 2007 20:52:01 -0500, "Jimmie D"
wrote in
:


"Telstar Electronics" wrote in message
ups.com...
Jimmie D wrote:
Just looks like a brute force clipper to me with no filtering. FUZZY is
the
right word, this is very simlar to the circuit used in guitar some
fuzzboxes.

Actually, it does have some RC filtering... but evidently that's not
sufficient.

www.telstar-electronics.com

That why it is best to operate a clipper at RF level say 455khz then clip
and filter. That way all the harmonic energy generated will be outside the
bandpass of the filter. Then convert back to audio.These can be really easy
and cheap to make. There used to be a guy down in BAxley Ga that sold these
units dor about $50 a piece. He had about $15 in parts and about an hr in
time in each one. Something to do fill in the idle time.


That, set in line after Brian's CVA (sans the noise gate), would make
a pretty decent processor. I hinted at such a setup before but his
learning curve is flat.

"Frank Gilliland" wrote in message
...
On Sat, 6 Jan 2007 20:52:01 -0500, "Jimmie D"
wrote in
:


"Telstar Electronics" wrote in message
oups.com...
Jimmie D wrote:
Just looks like a brute force clipper to me with no filtering. FUZZY
is
the
right word, this is very simlar to the circuit used in guitar some
fuzzboxes.

Actually, it does have some RC filtering... but evidently that's not
sufficient.

www.telstar-electronics.com

That why it is best to operate a clipper at RF level say 455khz then clip
and filter. That way all the harmonic energy generated will be outside the
bandpass of the filter. Then convert back to audio.These can be really
easy
and cheap to make. There used to be a guy down in BAxley Ga that sold
these
units dor about $50 a piece. He had about $15 in parts and about an hr in
time in each one. Something to do fill in the idle time.


That, set in line after Brian's CVA (sans the noise gate), would make
a pretty decent processor. I hinted at such a setup before but his
learning curve is flat.




Dont need nothing that fancy, Develope an AGC voltage using a rectified
sample of the output of the clipper and usee it to bias a FET mike amp. If
you used one of those 3 legged ceramic IF filters I bet you could build the
whole thing less pots on a 24 pin DIP IC header