Unusual amp from 1987

[stanislav1957]

I changed the correction in the LMC . I'll show you the example of a telephone amplifier "Mattur".
Stability has improved significantly.Very decent. C15 parallel to Resistor R6.
The clip is mine .Roses are mine . I'll delete it if I can't

 

[minek123]

'Mattur' is interesting....
Unusual VAS and Akulinichev biasing. Will try to simulate this.
Beatutiful roses!!!

 

[stanislav1957]

The printed circuit board "Mattur". There are a lot of clips on my YouTube channel

 

[hwckent]

Here is the newest amp I'm simulating. Perhaps a next build candidate.
Check it out.
Perhaps someone can propose improvements..

Phonic XP 2000 also has this circuit.

 

[minek123]

Yes, you are right. Crown Phonic. Very nice amp...