Famous Brazilian Amplifiers

[destroyer X]

They have used some inovation...the tuner was using Varicap diodes

and a sample of that voltage was amplified and sent to a VU meter installed into the panel, covered by a dark glass...so...while you were tuning, the needle moved showing you the frequency.

Nice...was very nice kind of analogical display.

regards,

Carlos

 

[destroyer X]

Here you can see the Vu meter transformed into FM frequency display

nice.... even today i like this idea.

regards,

Carlos

 

[destroyer X]

Here an internal image..... 1981 folks

those early days people used to install boards plug in.

regards,

Carlos

 

[destroyer X]

Boards used into Quasar.

here, attached,

regards,

Carlos

 

[destroyer X]

Last picture will be posted.... if you want to see more

schematics from Quasar, go to Jan Dupont pages...he has a nice selection of Gradiente schematics and other good Brazilian amplifiers, including some more modern one too (2000 and up)

http://www.audio-circuit.dk/

regards,

Carlos

 

[destroyer X]

I have a lot to show...but bandwidth may be a problem

Do not know, exactly, how forum management will accept that.

The modern Brazilian amplifiers have evoluted a lot....now a days they look this way.

The site can be written in English.

http://www.studior.com.br/

regards,

Carlos

 

[ttako]

Re: I have a lot to show...but bandwidth may be a problem

Do not know, exactly, how forum management will accept that.

The modern Brazilian amplifiers have evoluted a lot....now a days they look this way.

The site can be written in English.

http://www.studior.com.br/

regards,

Carlos

dear carlos,

do you have more information on the studior amps?
I am curious what circuit are they using and how the power supply could be enough for 11000 watts in only 17kg weight while seemingly its an 50Hz toroid?

thanks,
Tamas

 

[djk]

It's rated at 1820W/8R x 2 for a 33mS tone burst at 1% distortion.

That does seem pushing it for the low weight.