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Author Topic: Cheap 10 meter amp  (Read 78569 times)
KA5PIU
Member

Posts: 446




Ignore
« Reply #120 on: June 27, 2014, 04:34:23 AM »

Hello.

Actually, we, meaning the collective CB community, are enjoying this.
It was another ham, who says he is an engineer, who convinced me that I should concentrate on whatever I can make money on.
Used TV sets are a parts supply, nothing more.
I do not care about whatever they were doing, I am interested only in what I can do with it.
Schematics to a defunct TV would do me no good, I am not rebuilding that TV.
And that is the point.
What are the RF limits? hook up a signal generator and see.
This is all trial and error.
Burger Time!
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KA5PIU
Member

Posts: 446




Ignore
« Reply #121 on: June 27, 2014, 07:39:27 PM »

Hello.

Clearly, this is a much smaller set.
But, look a the frequencies!
http://www.eserviceinfo.com/downloadsm/23454/Mitsubishi_DP2070SB.html
The video drivers should be able to do 220 MHz.
I have no idea what the sweep circuit can do.
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KB4QAA
Member

Posts: 3339




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« Reply #122 on: June 27, 2014, 10:36:16 PM »

Quote
Quote from: KA5PIU on June 24, 2014, 05:49:35 PM
Dude! you nailed it!
 so we get abuse from the ham community, and do fight back!
The convenience being that as both a ham and CB'er he can abuse himself and cut us out of the process!
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KA0HCP, ex-KB4QAA Relocated to Ks. April 2019.
G3RZP
Member

Posts: 1284




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« Reply #123 on: June 27, 2014, 11:36:39 PM »

It would help if he could write in correct English, rather than dis-jointed sentences.
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K8AXW
Member

Posts: 7039




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« Reply #124 on: June 28, 2014, 07:47:46 AM »

Peter, why are you wallowing around in this pig pen?
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A Pessimist is Never Disappointed!
KA5PIU
Member

Posts: 446




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« Reply #125 on: June 28, 2014, 08:41:14 AM »

Peter, why are you wallowing around in this pig pen?

First off, hams in the pig pen.
Second, try it! you might like it.
What I am doing is taking used CRT TVs apart, for the parts.
The total investment is zero.
Lets say you did NOT do the sweep module thing.
That one set yielded a nifty audio system that has its own power supply.
2 RF tuners, one with the "Sat-Link", that means TV channels 2 to 83+ or 55 to 2100 MHz tuning range.
In IR remote receiver and wiring all over the place, including the deflection coils and screws, nuts, bolts, etc.
The deflection/HV amp doing HV was just a bonus.
The audio sections of better TV sets can exceed 90 watts.
And, everything is designed for 100 to 260 volts AC operation, no more odd power requirements, the set runs on domestic power.
Again, the total investment is ZERO! so, what do you have to lose?
By the time someone else has finished looking up schematics, I will have the audio section playing my tune.
I will have parts of the power supply powering an old factory car radio I got at a junk yard.
I have a dozen friends who do wood working and if the TV came in a wood cabinet, that gets reused.
Did I mention that you incur no costs?
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W9FIB
Member

Posts: 2509




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« Reply #126 on: June 28, 2014, 12:05:09 PM »

He still shoveling more BS?
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73, Stan
Wisdom is knowledge you gain after you know it all.
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