Indeed, it’s a LT1085 based power supply, with Roederstein filter cap on a recycled heatsink. Actually parts from my parts bin that otherwise never get used.

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From experiences, closely matched and thermal-bonding of the input JFets does contribute to the stability and help to lower the DC offset of the amp.  (not only on this build but generally on all the amps I have built in the past)   I'm not sure about the tiny heatsinks used on the output...

The unstable problem of your previous Dynalo build on a self-etched PCB (as you posted in the other forums a while back) has probably to do with the PCB layout itself (signal routing, LCR characteristics…). Your recent Dynalo is built on a professionally made PCB, which has been proven to work...

Quote:   mb3k, good to see you back.   It seems to be that there is not a real new case styling in amps at all recently. However so many thing is possible in DIY regarding the used materials, colors, the shapes… The inspiring work HF-member zkool448 is worth to mention.  ...

Quote:   Sehr schön… really cool builds Herr Stixx !   My next project is also accidentally a transformer coupled Siemens C3G in triode mode.

Thanks gents!   The chassis is my own design and made by Schaeffer AG Germany (FPE in Europe). I wanted some thing flat and also has the dimensions I need (300mm x 300mm x 36mm internal). It made from aluminum with some stiffener inside, also serves as heatsink for the current regulators...

Mission completed.      

Quote: Yes, R16 = R46 = 10K and R7 = R37 = 2K.  

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Quote:   If it was intended for sale, I never posted anything in this DIY forum.   As a DIY-er, everything I do -from the first pencil sketch, selecting parts, prototyping, trials and errors to... putting the amp together- I do it my way…with love and passion. To be honest, I...

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power up

It slowly takes the shape... Hopefully I have the time to fire the amp up this weekend for the first time and do some test.      

A quick dry fit...

Inspired by the Martian headphone amp (based on 832A), I decided to give this amp a try. Here is the first pics of the work in progress…       Amp internal           ... and its power supply.

Quote: Some "food for thought" is probably necessary.  

Quote:   HINT.  

X-Amp in progress

What Pageygeeza said is indeed roughly what I have done. Actually there is no secret in doing perf-board. I will try to write down what (how) I have done (it).   Layout: The power supply is quite simple, but the amp part is more complicated and requires some more attention. With a pencil...

With some parts from my parts bin, I have made this 3-channel amp yesterday. It was a good perf-board exercise for me, and the amp works flawlessly from first power up, sounds very good without hum or hiss. Some details: power supply based on LM317T, all electrolytic capacitors on board are...