FullCircle, you are a real wood-artist. Chapeau! Here are some pics of my new toy (based on AMB α20).    

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.

Thanks for the kind words gents !   @ Forte I’m afraid that we are a bit too late for that. The perfboards power supplies are no longer sitting on my table but are already built in one or other devices like this M3. Taking the amp apart, just to take a photo of the perfboard...

Perfboards are indeed fun...    

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...

Here is a budget Dynalo with power supply in one box I'm building for my brother, gain is setting at 2x (for Denon D5000). The power supply includes ~10,000 µF Sikorels (my favorite PS capacitor). Most parts are from my parts bin, from there the resistors cocktail.    

    BloodInside, using the 2-pole AC plug (Class II Euro-plug), as common in our Dutch living room, there is no need to worry about the AC ground (similar to other hifi-equipments in your room… just skip it !!!).   Appliances in your kitchen or bathroom areas are another story...

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.

You are more than welcome for a listen session (if you are in the neighborhood), but I prefer to keep my amp.

  Quote:   Good to know you like it. And indeed, OPTs can certainly make or break the sound of an amp. The only nasty thing about good OPTs (especially custom made) is that they can really hurt your wallet. I recently got a couple of OPTs with amorphous core & silver wires for my...

Quote:   I have those feet from a local DIY-speakers shop, where also accessories for turntable and speakers are available. You should have to take a look at a good audio shop locally, there must be something useful for our DIY hobby.

Quote:   Yes… another build with D3a tubes, well done!   I have used these tubes for a while now in my SE transformer coupled amp and I really like it. Hope you like it too. For the relative low price (comparing to 6N30P-DR for example) it offers very good audio performance.

Quote: Ah... the good old days. Your dad is a lucky man! You probably right that this kind of tubes (Magic eyes) is no longer made nowadays in the western world. What I'm using on my amp are from old Russian production. However, just like some other popular audio tubes, some...

  Quote:   It started as a tinkering P-P project, made from junk parts, my primary focus is to make a hum-free working amp (and accidentally good sounding too). This is exactly why DIY is so fun.   When it comes to assembling a proven design (β22, Ω33333333…), you can substituting...

Quote:   These are level meter. And indeed, you have seen something like that before.  

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.  

Quote:   Indeed, this tube is no longer made nowadays. What I use on my amp is old craps from the ’70 and ’80. You are right that I build that amp myself, not finished yet due to crazy work schedule lately.  

My amp, featuring a 6SN7 and a GU-32 (832A)    

Uncle Erik has pointed it in the correct direction.   It was also an publicly answer to all the emails and PMs asking me for a quote or to buy a certain amp. I’m a hobbyist and build my own amps just for fun (EE is my former profession accidentally). I’m here now and then to enjoy and...

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...

  Quote: Quote: Thanks gents! And sure... there will be more pics to follow. Since this is a tinkering project, it will take some more time than a straight forward build. I currently have to travel for work but when I'm back (in about 10 days), I will try to take...