| The Ed Head |
Purpose |
Makes a guitar sound cooler. |
| Design |
A salvaged Hi Fi amp and some wood. |
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So there I am at my local salvage shop, Ed Grothus's Black Hole (if you are ever in Los Alamos, you MUST visit this place) and I see this beauty just begging me to convert it to a gee-tar amp. I nab it for $20 and go home to tear it apart.
This beauty has 2 6V6 output tubes, a 12AY7 phase splitter, a 12AU7 preamp tube and a 6au6 tacked on for good measure. The transformers look nice and beefy, especially the OPT. I'm not sure where it came from, but I suspect it came from some sort of console system or record player since there was all kinds of remote power leads and stuff. Probably to power a turntable or something. Ina bout an hour I had snipped off all the unused leads, and added a power cord, pilot lamp, input jack, output jack, and switch.
I jumpered it to a speaker in another amp and tried it out. Not so nice. It is definitely a hi fi amp, not a guitar amp. It stays clean until the very top of the volume range. The tone controls are really weird too, they sound flat when turned all the way down, instead of all the way up. Also the sound is quite muddy. I initially thought I could salvage the circuit by replacing some parts and moving the tone controls - hence the pretty box - but now I think I will use the transformers and the tubes and build a Tweed Deluxe in another cabinet. I found a cheap 5E3 eyelet board online that should make things easy. The rest of the parts I should be able to scrounge up sopmewhere, so it shouldn't turn into a full blown project. I also found some old alnico 12" speakers that would probably make a nice cabinet for it. They had tears in the cone so I got them for $8 - oh yeah. Nothing a little silicone can't fix. Maybe a 2X12 cabinet and a Deluxe Head would be fun. Maybe I should make the cabinet sealed and call it a 1/4 stack :)
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