Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: rafaelctt on April 19, 2023, 06:53:22 am

Title: Single ended "Mariace" finished
Post by: rafaelctt on April 19, 2023, 06:53:22 am

Finally, my amplifier has been able to be finished. I'll give you a test video.I have managed to have treble, mid, bass, reverb, drive and output power controls in the same 5 w amplifier.
Thank you for your collaboration in this project.

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Title: Re: Single ended "Mariace" finished
Post by: sluckey on April 19, 2023, 07:21:07 am

Sounds nice! Good job.

Title: Re: Single ended "Mariace" finished
Post by: JPK on April 19, 2023, 08:48:45 am

Sounds great.

Title: Re: Single ended "Mariace" finished
Post by: rafaelctt on April 19, 2023, 10:56:19 am

THANK YOU, I really enjoyed doing it with your help!

Title: Re: Single ended "Mariace" finished
Post by: Lectroid on April 19, 2023, 11:04:58 am

Great job and beautiful cab!  I love the sound, both clean and dirty.  Wow. I read your other thread about building it and have a question.  Your Drive knob, is that the Gain or MV pot on the last schematic you posted?  Did you make any more changes after that schematic?  Thanks.

Title: Re: Single ended "Mariace" finished
Post by: Platefire on April 19, 2023, 09:56:16 pm

 :thumbsup: Great Job!!! Looks Good and Sounds Good

Title: Re: Single ended "Mariace" finished
Post by: rafaelctt on April 21, 2023, 03:03:45 am

Quote from: Lectroid on April 19, 2023, 11:04:58 am

Great job and beautiful cab!  I love the sound, both clean and dirty.  Wow. I read your other thread about building it and have a question.  Your Drive knob, is that the Gain or MV pot on the last schematic you posted?  Did you make any more changes after that schematic?  Thanks.

VR1 and VR2 I installed adjustable (adjusted until I liked the sound).
The one that regulates the amount of distortion is "OVERDRIVE 100K-L".
I also made these last modifications that you see in the schematic.
(https://i.postimg.cc/vZKt0jLF/Esquema-Final-titulado-RESPUESTA1.jpg)

Title: Re: Single ended "Mariace" finished
Post by: Lectroid on April 22, 2023, 12:03:36 pm

Interesting.  Thank you.

Title: Re: Single ended "Mariace" finished
Post by: rafaelctt on April 24, 2023, 01:42:45 am

Quote from: Lectroid on April 22, 2023, 12:03:36 pm

Interesting.  Thank you.

Here you can see it:
(https://i.postimg.cc/k44BQFGN/CIRCUITO-DISTORSI-N.jpg)
(https://i.postimg.cc/3RVJ2sP7/CIRCUITO-DISTORSI-N-CABLEADO.jpg)

Title: Re: Single ended "Mariace" finished
Post by: rafaelctt on May 16, 2023, 12:27:18 am

Some more information here:
https://bahiarecords.net/mariace-amplificador-de-guitarra/
Thanks!