Picked up this 12au7 version of the Millett Starving Student hybrid headphone amp over 10 years ago from a guy in Australia that had a run done for himself and sold the others for cost. Finally decided to build it and ordered everything on the BOM except a case.
Well, as a total noob, it has taken me several weeks and ordering other things I found out I needed as I went along. First it was needing hookup wire. Then it was XH plugs, but I didn't know I needed a specific crimp tool to use those plugs, and ordered that too. Then trying to find build info for a one off production run from a decade ago has been hit or miss. Then, I realized that 18awg hookup wire is too big for XH connectors and needed to order 24awg, too. Got right to the end and found out I didn't have mounting hardware for the mosfets to the heat sinks. Run to the hardware store for that.
I didn't have any thermal paste, so I didn't let it run too long, maybe just a few minutes and the heat sinks were getting warm. But, everything functioned as it should! Now, to build a case for it.
Well, as a total noob, it has taken me several weeks and ordering other things I found out I needed as I went along. First it was needing hookup wire. Then it was XH plugs, but I didn't know I needed a specific crimp tool to use those plugs, and ordered that too. Then trying to find build info for a one off production run from a decade ago has been hit or miss. Then, I realized that 18awg hookup wire is too big for XH connectors and needed to order 24awg, too. Got right to the end and found out I didn't have mounting hardware for the mosfets to the heat sinks. Run to the hardware store for that.
I didn't have any thermal paste, so I didn't let it run too long, maybe just a few minutes and the heat sinks were getting warm. But, everything functioned as it should! Now, to build a case for it.
