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#81
January 17th 07, 07:18 PM
posted to rec.radio.cb
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What makes it tick?
On Wed, 17 Jan 2007 10:46:44 -0800, Frank Gilliland
wrote: +++On Wed, 17 Jan 2007 00:45:51 -0500, "Jimmie D" wrote in : +++ +++ +++"Frank Gilliland" wrote in message om... +++ On Tue, 16 Jan 2007 18:21:55 GMT, james wrote +++ in : +++ +++ snip +++A clipper with some form of agc is eesentially a clipper/compressor +++combination. Another best unto itself. +++ +++ +++ Which brings us right back to what I had suggested very early in this +++ discussion: Take Brian's hack-job and follow it with an RF-type +++ clipper. The two could probably be combined but I suspect alignment +++ would be a whore. +++ +++ +++ +++Well the idea is good but the method of doing it is a little overdone if you +++use Brians compressor. +++ +++ +++True. And I try to avoid using ASIC's whenever possible. +++ ******** Asics have their place when space is a premium. Costwise, discretes can be cheaper. Also more simpler. Sometimes simpler is better. james |
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#82
January 17th 07, 10:12 PM
posted to rec.radio.cb
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What makes it tick?
On Wed, 17 Jan 2007 19:18:31 GMT, james wrote
in : On Wed, 17 Jan 2007 10:46:44 -0800, Frank Gilliland wrote: +++On Wed, 17 Jan 2007 00:45:51 -0500, "Jimmie D" wrote in : +++ +++ +++"Frank Gilliland" wrote in message +++news:e4dqq25cuemg3b3ggkvsu8rp3unia7asbr@4ax. com... +++ On Tue, 16 Jan 2007 18:21:55 GMT, james wrote +++ in : +++ +++ snip +++A clipper with some form of agc is eesentially a clipper/compressor +++combination. Another best unto itself. +++ +++ +++ Which brings us right back to what I had suggested very early in this +++ discussion: Take Brian's hack-job and follow it with an RF-type +++ clipper. The two could probably be combined but I suspect alignment +++ would be a whore. +++ +++ +++ +++Well the idea is good but the method of doing it is a little overdone if you +++use Brians compressor. +++ +++ +++True. And I try to avoid using ASIC's whenever possible. +++ ******** Asics have their place when space is a premium. Costwise, discretes can be cheaper. Also more simpler. Sometimes simpler is better. That's the excuse Brian used for not including a regulated bias circuit in his previous amps. He eventually took my advice (not publically, of course) and hacked a bias circuit from a link I posted. That's why he won't post the schematic for his current squack-box. |
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#83
January 20th 07, 05:27 PM
posted to rec.radio.cb
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What makes it tick?
"james" wrote in message ... On 11 Jan 2007 04:14:20 -0800, "Telstar Electronics" wrote: +++Jimmie D wrote: +++ Put together a little rf speech processor last night on a bread board using +++ color burst crystals for IF filter and osc. Works great with 9db of +++ clipping, about $10 worth of parts off the shelf cost. Took about 2 hours to +++ bread board it up. I figure a one man production line could build one in +++ about 30 minutes.Its just stuffing a board and soldering. +++ +++9dB... are you saying you got a 9dB power increase in transmitter +++power? Please clarify. +++ +++www.telstar-electronics.com ************** Reread again. He stated 9 db of clipping. That does not correspond to power increase. james Tested it on an audio amp, but driving a SSB rig yes it would. |
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#84
January 20th 07, 05:37 PM
posted to rec.radio.cb
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What makes it tick?
"Frank Gilliland" wrote in message ... On Wed, 17 Jan 2007 19:18:31 GMT, james wrote in : On Wed, 17 Jan 2007 10:46:44 -0800, Frank Gilliland wrote: +++On Wed, 17 Jan 2007 00:45:51 -0500, "Jimmie D" wrote in : +++ +++ +++"Frank Gilliland" wrote in message +++news:e4dqq25cuemg3b3ggkvsu8rp3unia7asbr@4ax .com... +++ On Tue, 16 Jan 2007 18:21:55 GMT, james wrote +++ in : +++ +++ snip +++A clipper with some form of agc is eesentially a clipper/compressor +++combination. Another best unto itself. +++ +++ +++ Which brings us right back to what I had suggested very early in this +++ discussion: Take Brian's hack-job and follow it with an RF-type +++ clipper. The two could probably be combined but I suspect alignment +++ would be a whore. +++ +++ +++ +++Well the idea is good but the method of doing it is a little overdone if you +++use Brians compressor. +++ +++ +++True. And I try to avoid using ASIC's whenever possible. +++ ******** Asics have their place when space is a premium. Costwise, discretes can be cheaper. Also more simpler. Sometimes simpler is better. That's the excuse Brian used for not including a regulated bias circuit in his previous amps. He eventually took my advice (not publically, of course) and hacked a bias circuit from a link I posted. That's why he won't post the schematic for his current squack-box. I made up a little encapsulated circuit I was planning on selling t oimprove the bias on solidstate amps that had only a diode for bias, Trouble is most CBers rip stuff like this out of an amp. "HEy man cut this wire and get 10 more watts." |
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#85
January 20th 07, 07:16 PM
posted to rec.radio.cb
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What makes it tick?
On Sat, 20 Jan 2007 12:37:51 -0500, "Jimmie D"
wrote in : snip I made up a little encapsulated circuit I was planning on selling t oimprove the bias on solidstate amps that had only a diode for bias, Trouble is most CBers rip stuff like this out of an amp. "HEy man cut this wire and get 10 more watts." Most CBers will drive a 100W-PEP amp to 100W with an AM carrier, then wonder why they can hear themselves through the TV. |
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#86
January 21st 07, 02:02 AM
posted to rec.radio.cb
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What makes it tick?
On Sat, 20 Jan 2007 11:16:27 -0800, Frank Gilliland
wrote: +++On Sat, 20 Jan 2007 12:37:51 -0500, "Jimmie D" wrote in : +++ +++snip +++I made up a little encapsulated circuit I was planning on selling t oimprove +++the bias on solidstate amps that had only a diode for bias, Trouble is most +++CBers rip stuff like this out of an amp. "HEy man cut this wire and get 10 +++more watts." +++ +++ +++Most CBers will drive a 100W-PEP amp to 100W with an AM carrier, then +++wonder why they can hear themselves through the TV. +++ **************** Consider most figure if it runs well at 12.5 V, it should run better at 20V. james |
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#87
January 21st 07, 04:36 AM
posted to rec.radio.cb
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What makes it tick?
"james" wrote in message ... On Sat, 20 Jan 2007 11:16:27 -0800, Frank Gilliland wrote: +++On Sat, 20 Jan 2007 12:37:51 -0500, "Jimmie D" wrote in : +++ +++snip +++I made up a little encapsulated circuit I was planning on selling t oimprove +++the bias on solidstate amps that had only a diode for bias, Trouble is most +++CBers rip stuff like this out of an amp. "HEy man cut this wire and get 10 +++more watts." +++ +++ +++Most CBers will drive a 100W-PEP amp to 100W with an AM carrier, then +++wonder why they can hear themselves through the TV. +++ **************** Consider most figure if it runs well at 12.5 V, it should run better at 20V. james Well they do, for a litle while. |
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