I have attached my final schematic with annotations and voltages/part numbers at the bottom of this post. Happy building!
PS: I used a 100W Marshall Output Transformer
Hello everyone! I hope you all have been doing well in this trying time. I have had the good fortune to spend quite a bit of time with a few SSS#005 "clones" as of late, as I have had the good fortune of making acquaintance with a friend who is obsessed with all things Eric Johnson and has several SSS#005 type amps from several of the well known builders. So I thought I would share an interpretation on this amp. I have drawn a layout and schematic of what I have observed, but in the spirit of not cloning anything "to the letter" or to offend sensibilities I won't be offering "carbon copy" information so here goes:
Based on what I can observe, the SSS #005 clones out there share this common refrain: Skyliner EQ, Post PI driver tube, and unusually high negative feedback resistor. Also omits a choke in lieu of a large wirewound resistor. Circuit also seems to use a standard Fender reverb circuit with added Send (Dwell) and Return (level) controls. 12AT7 driver stage uses LNFB like in several Dumble designs.
In my interpretation of this circuit I have made some changes. Ive added Martin Manning's improved step filter design as well as his bipolar Cathode Follower driver power supply circuit that utilizes the 60vAC bias winding tap on a Fender style Power Transformer. Handful of tweaks here and there as well. For the FET stage, I'll be using a PCB for a Echoplex EP3 FET preamp. Running a quad of 6CA7s with a Fender Twin style power transformer for this interpretation.
Schematic and layout are not tested, however I have audited them both several time and can say with likely 90% accuracy that it will work as built, but Caveat Emptor applies. If anyone sees any glaring errors please share
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Demo of this build is HERE:
https://www.youtube.com/watch?v=qchuuosfnVM
NOTE: THESE HAVE BEEN UPDATED