100W Ultimate Fidelity Amplifier

[maxwell007]

It's this one :
Toroidní transformátor HEFEI TR-T300/2X36V | GM electronic

 

[AndrewT]

check the specification to find what the 36Vac means. Is it open circuit voltage when mains input = 230Vac, or is it loaded to rated maximum AC current when mains = 230Vac?

 

[maxwell007]

I can make some measurement...but usually manufacturer indicate sec voltage under load..

 

[Chingy]

hi, I have 35-0-35 400va transformers
, will these work for these amps, I have about 50off them

The transformers have 2 x 13v outputs and 1 35-0-35 output
35 - 0 - 35 @ 5A
13v @ 1A and 5A

 

[Chingy]

hi, I have 35-0-35 400va transformers
, will these work for these amps, I have about 50off them

The transformers have 2 x 13v outputs and 1 35-0-35 output
35 - 0 - 35 @ 5A
13v @ 1A and 5A

 

[thimios]

View attachment 486459

50 of them

 

[Chingy]

yes +- 50off them

 

[fa-rang]

A17 power supply can be increased to the maximum.

 

[apexaudio]

P30

CFA preamp P30 test.

 

[Vostro]

View attachment 486459

Should be nice for a stereo setup.
Lucky to have so many.

Regards

 

[apexaudio]

A10

Fet input and DC servo CFA amp...

 

[lsheng]

C9, C10 value

Any body already have LTspice simulation file on this circuit？
For a typical two stage amplifier, C9 and C10 is bad for performance and stability. I would like to change them to 0 if possible.
Regular pole splitting compensation is not used here, what is the consideration?

I made this amplifier for test my home DIY speakers (two way TL).

 

[apexaudio]

Any body already have LTspice simulation file on this circuit？
For a typical two stage amplifier, C9 and C10 is bad for performance and stability. I would like to change them to 0 if possible.
Regular pole splitting compensation is not used here, what is the consideration?

You can find last simulated version in post #4935

 

[Chingy]

Should be nice for a stereo setup.
Lucky to have so many.

Regards

yep, to much

 

[still4given]

Wanna share?

 

[Chingy]

Wanna share?

why not, diy means to share

 

[JOHN BALI]

why not, diy means to share

I believe he means : can you send me some

share means free right

So there is always new design share by sir Apex
i will check which one that I can build easily

 

[apexaudio]

A10 1N4148 corect polarity.

 

[still4given]

A10 1N4148 corect polarity.

Is there a layout?

 

[apexaudio]

Is there a layout?

No, it's not tested just simulated.
Regards