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destroyer X 31st October 2004 06:37 PM

Soon i will show you the Taterka, one old amplifier made in Brazil
The amplifier was called Taterka Linear, and was made from a German descendent......we have a lot of "chucrutes" here.

The amplifier interesting characteristic was that used a lot of mechanical keys, and now a days , diy people search those units to use the A to B, A to C, and all combinations to switch signals... also speakers A, B, C, Mixed, surround and inverted....mono switch...left only, rigth only....very good as a test central.

Those units were made from 1975 to 1978, and they close the doors.... was a second class amplifier, low powered, electrolitic condenser output, first and second stages used condenser coupling.... and TIP31 transistors in the output.

I have one entire power amplifier board, will try some image to show you.

For a while i am simulating, and make another one too, improoving the voltage and some circuits to more modern ideas.

It used some automatic gain control....interesting.

Also i will try to find the Panel to have some image to show you all.

As i am trying to find some "bad reference", this one can be...only 18 volts, non simetrical supply.... big miller capacitors....hehe.....all to be terrible!......maybe 4 watts in 8 ohms.

The modified unit jumped to 12 Watts with 35 volts..... the standar circuit used 18 Volts.

To the ones that are curious, and like to see old things....soon i will show you, and also will call my friends to analise, and to judge the modified unit i made.... a little bit more powerfull and more modern.... and the standard unit, and to tell how it sounds in comparison with some modern circuit...will use JLH as reference, as everybody already heard JLH circuits.

Many friends travelling, weather is turning hot here....people on vacations..... the temperature peak will be around Christmas and January., this way i will wait the guys to make the test.

But you, that like those things, be waiting the name Taterka in our forum, as i will show some images and circuits before the test be made.



destroyer X 31st October 2004 07:09 PM

Some pictures, low resolution, made with pen cam, those cheap ones
2 Attachment(s)
Can give one idea.

the heat sinks are off, and two channels are over that board.

Output with 1000uf/25 volts electrolitic condenser.

I will arrange the Simulator schematic and will publish here in a matter of 30 minutes.

Will be not the one i improve, will be the original, the factory standard circuit made in 1977 (electrolitic condensers by Siemens with the date registered on them)



Upupa Epops 31st October 2004 07:10 PM

Carlos, you are archeologist :D - following excavation ;) . Rather tell us something about weekend in bikinas :cool: .

destroyer X 31st October 2004 08:03 PM

Epupa, i made a threat saying Good Bye, i was going to combat
And i put some girls with bikinis and strips.

People send it to "Everything else".....or "off topic"

I will try to send you the picture without black strips.

Yeah!....Archeologist, as my people is not making the sound i like, maybe i love distortions...why not?



destroyer X 31st October 2004 08:05 PM

Taterka schematics, the factory and the modified one i made
2 Attachment(s)
I did not hear already those circuits.

They where tested in simulation, the modified simulated much better, but this is not a guarantee that will sound better.



destroyer X 31st October 2004 08:08 PM

Taterka, the modified schematic i tested in Multisim
2 Attachment(s)
Worked very well, but i made some modifications in the drawn, to make it pretty to publish to you all.

Maybe some mistake, this is not uncommon my side.

This one is not assembled, and no one heard it, as it do not exist in real is only virtual.



Upupa Epops 31st October 2004 08:17 PM

Carlos, it is " glass machine " made with semiconductors :D - in oposite to this schematic is JLH " future " :D . Pavel P.S. : Pictures without black strips ? Hmmm.... :cool:

destroyer X 31st October 2004 08:29 PM

Hey Epupa, if you like the strips there, i can sent you Schwartznegger!!!



Upupa Epops 31st October 2004 08:36 PM

Carlos, don't touch governor :D .

destroyer X 31st October 2004 09:42 PM

They confused the guy with the exterminator.
The confusion related the artist and the man.. good result this time.

But will be out all the time....making movies.


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