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Messages - drbob1

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Build Reports / Re: Macheen
« on: June 06, 2011, 07:34:00 AM »
Wow, that is awful in a glorious way! And yeah, that's kinda how it sounds, so I guess it's OK.

2
Build Reports / Recent Macheen Build
« on: June 05, 2011, 08:46:12 PM »
It's my first "non-kit" build and basically went well with two exceptions. One is that I kept forgetting stuff, 3 separate orders to get everything I needed (because I got it from several different places). The other is that I broke one of the vintage Ge diodes, got another, not quite matching  :o and the limit seems to work ok.

It does display somewhat strange behavior: when I move the gain knob, the overall volume drops momentarily then comes back to normal. It also crackles when I move it (expected, I guess?). I used the external trim pot/volume for the second SHO circuit and I find it's not that useful less than 12 (the pedal gets too quiet overall). Does that sound like normal behavior? Overall the distortion is nasty and the pedal is quite loud (both expected, of course).

3
I have a breadboard/box thing I used for this purpose this time out. The only problem I had was that I couldn't tell if the static I was hearing was from the unprotected board and pots sitting on the desk or from a problem with the build. I guess the mounting strip for the pots and the insulation provided by the plywood version might work the best?

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Build Reports / Re: Macheen-build and a question
« on: June 04, 2011, 09:46:40 PM »
The build went well, except that this was my first pedal I had to order the BOM instead of a kit and it took 3 tries to get it all here! That said, it fired up right away. I don't remember how my earlier Machine acted and it didn't have the external trim knob, so a couple of questions:
1. Limit is pretty subtle-shifts the distortion just a bit but not a huge effect. The Ge diodes are mismatched because I broke one of my first pair. Is that a problem?

2. Adjusting the trim pot for most of it's travel is pretty quiet, then the last 30% is where all the magic happens. Is that right?

3. Adjusting the gain, it crackles and fades as I move the knob, then stabilizes when I stop moving it. Again, some of the early travel seems less useful as the unit loses volume (if both are under 50% it won't get up to unity, although if both are maxed it's DAMN loud!).

Does it sound like it's working correctly?

BTW, I got a "blem" prefinished enclosure from Pedalparts: fast shipping and a great product for a great price!

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