A not so standard SSS002 build

[rootz]

Going the extra mile on this one. Custom made chassis. Loads of NOS components. Hand made PCB’s. I’m going to enjoy building this one.

[GAStan]

Great start!! Nice Triad

I might not post much but I will certainly be watching with interest.

[dbharris]

Looks like a great start. I'm taking notes for when I get around to an SSS 002!

-Dan

[erwin_ve]

Nice build sofar Bas, looking great. Those etched pcb with attached eyelets are a nice detail.
I see some parts are missing, are you looking for specific parts?

[desertmouth90]

Going the extra mile on this one. Custom made chassis. Loads of NOS components. Hand made PCB’s. I’m going to enjoy building this one.

Looks amazing!

Where you get the chassis from and how much?

[rootz]

Thanks for the nice compliments here!

Thanks for the Triad Glenn! Tremendously helpful!

Erwin, the small eyelets are actually via's! These and the small turrets are really there on the reverb/trem board of SSS001. 002 is much like I think, but we only have one blurry gut shot. I think you can see though, that there are eyelets in that picture when you look for the places without components or wires to tube sockets; you can see more than just a hole with some wire protruding.
I think I'm fully covered when it comes to parts. Only thing really missing is the Columbia Flexfoam 1389 shielded cable. Pretty much unobtanium it seems.

Chassis is fully custom made in the Netherlands. It is unique. The layout is based on multiple samples of Overdrive Reverb amps. SSS001 end 002 seem to be ODR chassis with some extra holes and some of the preamp tube holes unused. I cross referenced half a dozen of ODR and SSS pics to confirm this. The layout is undeniably 100% the same, down to the exact placement of standoffs, transformers and holes for tubes. Everything!
I had a handful of chassis made. Cut, welded, anodised, screen printed. Prohibitively expensive hahaha.

[GAStan]

You're welcome Bas, was my pleasure to contribute to what is looking like a beautiful build.

The boards, you etched them yourself? Component selection looks excellent, I even notice some CC resistors in the appropriate places.

[Richard1001]

Wow, these PCB's look amazing!

You might want to swap the cathode caps on V2 and V3, and change the 22nF cap to the master for a 10nF cap.

[rootz]

Thanks thanks! Eagle eyes Ridchard!! Swapped the bypass caps and went for 10nF where appropriate. Had some nice NOS ones in stock.

[Guy77]

Looks great Rootz! Interested to hear how this compares to the SSS#005.
I see you have lots of Piher resistors. I have a bunch on order and am also excited to hear how they sound.

Cheers
Guy

[rootz]

[rootz]

Not sure what this compares to Guy. It’s an incredible amp. In the clip above I adjusted it to John Mayer settings (seen pics of the amp on stage).
Apart from making the PCB’s with those small vias and turrets, this was actually a very easy build. The grounding scheme of the reverb was surprising and required some extra attention. And I had the low filter backwards, so as a low cut filter.
Not a very clean amp; the dry signal mixer after the filter clips rather early. But is also gives that nice compression and some grit to the sound. I used a Vibrosonic output transformer as the customer wanted 8 ohm secondaries but also NOS Schumacher iron. I get around 85 clean unclipped Watts.

[rootz]

Some pictures of the finished build

[rootz]

More!

[ElectronAvalanche]

Not sure what this compares to Guy. It’s an incredible amp. In the clip above I adjusted it to John Mayer settings (seen pics of the amp on stage).
Apart from making the PCB’s with those small vias and turrets, this was actually a very easy build. The grounding scheme of the reverb was surprising and required some extra attention. And I had the low filter backwards, so as a low cut filter.
Not a very clean amp; the dry signal mixer after the filter clips rather early. But is also gives that nice compression and some grit to the sound. I used a Vibrosonic output transformer as the customer wanted 8 ohm secondaries but also NOS Schumacher iron. I get around 85 clean unclipped Watts.

Phantastic build Rootz!

You say the amp is not very clean. My 002 clone is actually very clean all the way up and somewhat on the bright side. Did you scope the mixer clipping? And is the GNFB resistor on your amp a 4k3 resistor? Maybe I read that resistor value wrong in the picturw. AFAIK the original is 2k7?

Best Electron!