100W Ultimate Fidelity Amplifier

[smartx21]

Terry, I am speechless! 😱
Thank you for all your contribution!

 

[Congo5]

YES that looks very nice, very.
should have been reading the solid state threads years ago... been missing out.

 

[stuartmp]

That looks awesome. Well done.

Sent from my SM-G920I using Tapatalk

 

[mlloyd1]

that's some great looking work terry!
your son should treasure that piece.

mlloyd1

 

[prasi]

Hey Guys,

I finished the P30.

P30, MM3, TB3, Shunt Regs and A Class PSU.

I added a volume control/channel switcher with remote. Pretty cool setup.

Amazing! Looks great, very very professional build. what would I give to get me the same set-up.😀
could you please tell us, what PSU drives which ckt? i believe P30 is driven by class A. one shunt reg drives, tone control and the other drives mm3?.

 

[Rick G]

Terry,
That is one SUsweet setup. Nicely done.!

 

[still4given]

Thanks Guys! It was a bit of work but fun at the same time.

Prasi,

Yes, you are correct. The A Class is driving the P30. One Shunt regulator for the MM3 and the other for the TB3. I have the shunts set to +-15V and the A class PSU is set to +-24V. All three are driven by an Antek 2220 which is 5A ~20-0-20VAC. The small transformer you see powers the Volume/channel switch circuit. I have Spint files for each of the Apex circuits and I will try tomorrow to combine them into one file and I'll post it here.

Blessings, Terry

 

[mprivitera1]

Hey Guys,

I finished the P30.

P30, MM3, TB3, Shunt Regs and A Class PSU.

I added a volume control/channel switcher with remote. Pretty cool setup.

Congratulations great job,
where you have taken PCB layout and components list for P30 preamp?

 

[still4given]

The P30 layout is from Alex. The others are from Mile and I just copied them in Sprint. I'm attaching the Sprint file with all of the circuits I used.

Hope this helps.

 

[kandimba]

Now files for PSU 🙂

regards Olaf

Thanks OlafK

Regards

 

[augaug]

Very nice and impressive work, it looks so professional! Thanks for the sprint files

 

[apexaudio]

Stereo audio selector with pot.

 

[still4given]

Hi Mile,

I would like to install a switch to take the tone controls out of circuit. Can I just switch the input from the tone control board to the input of the volume control? Will it matter if the tone control circuit has an open input if the output stays connected?

Thanks, Terry

 

[apexaudio]

Hi Mile,

I would like to install a switch to take the tone controls out of circuit. Can I just switch the input from the tone control board to the input of the volume control? Will it matter if the tone control circuit has an open input if the output stays connected?

Thanks, Terry

You must disconnect tone control output, tone control input can stay connect and output must be open.
Regards

 

[apexaudio]

Pot Selector relay drive PCB with 12V psu. Relays is on separate pcb with input terminals.

 

[Project16]

Hey Guys,

I finished the P30.

P30, MM3, TB3, Shunt Regs and A Class PSU.

I added a volume control/channel switcher with remote. Pretty cool setup.

Hello still4given
Very nice achievement, I love this design and it's real DIY!

 

[mprivitera1]

The P30 layout is from Alex. The others are from Mile and I just copied them in Sprint. I'm attaching the Sprint file with all of the circuits I used.

Hope this helps.

Thanks🙂

 

[stuartmp]

Just a newbie question. Alex. What software do you you to develop your boards? Schematic and PCB? What software is used to open the Sprint files?

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[apexaudio]

Pot Selector PCB corected.

 

[apexaudio]

New corections...