Back around 2003, I had a musician friend ask if I could build a tube-based headphone amp (HPA).
I scrounged around my junk box and came up with a chassis; two Wollensak single-ended output transformers; a power transformer; and a choke and most of the other bits.
Fifteen years ago I was pretty green on actual circuit design. I bought the TubeCAD CDs and designed an amp based around 6SN7 amplifiers with 6V6. I didn't do a very good job, either with the design or the layout. As you can tell from the pics, this was a real Rube Goldberg project.
I thought it might be interesting to revisit this project and update it, both in design and layout, in "installments" on AK. Dave Gillespie really helped out, basically redesigning the circuit.
Would anyone be interested?
I scrounged around my junk box and came up with a chassis; two Wollensak single-ended output transformers; a power transformer; and a choke and most of the other bits.
Fifteen years ago I was pretty green on actual circuit design. I bought the TubeCAD CDs and designed an amp based around 6SN7 amplifiers with 6V6. I didn't do a very good job, either with the design or the layout. As you can tell from the pics, this was a real Rube Goldberg project.
I thought it might be interesting to revisit this project and update it, both in design and layout, in "installments" on AK. Dave Gillespie really helped out, basically redesigning the circuit.
Would anyone be interested?