Well, I ain't the most artistic among us, but I've just compiled some photos into this Yahoo album:

http://uk.f1.pg.photos.yahoo.com/ph/ge_whiz/album?.dir=/458e&.src=ph&store=&prodid=&.done=http%3a//uk.f1.pg.photos.yahoo.com/ph//my_photos

It isn't the most reliable site, but if you're interested, keep trying. You'll get through in time. Here are some descriptions:

2 Fuzz Feet: Left, germanium; right, silicon with switchable piggybacked second stage. They sound similar except that the Si has more bite at the top end, and doesn't receive SW radio. I named them 'Fuzz Foot' before discovering the commercial pedal of the same name.

3 Overdrives: Left to right, Blue Magic (named 'Tube Station'), Odie and Peppermill aka 'Mr Pink'. I built the Odie in a hurry one weekend for a gig on the Monday night; hence no decoration or labelling! An example of build standards is given in the next picture of the inside of the Peppermill build.

3 more boxes: Guess what? Well, okay, the middle one is the 'Guitar' magazine "Tube Bender".

The 'Funk Nose': Tim Escobedo's "Phuncgnosis". I've praised the design many times before. Sounds great with the 'Ringer Dinger'.

SurfSonic: My first 'hybrid' effect; this incorporates the modified EA tremelo (yes, I misspelt "tremolo"), feeding the second stage of a Peppermill with a gentle treble boost mod. Everything the SS amped surf musician needs for a great sound. The 'Hammondex' is on the drawing board.

4007 overdrive / compressor / expander from ETI mag in about 1981. My first homebrew project apart from a simple treble booster. Unusual knob positioning because on my old Fuzz Face I was forever kicking the controls when operating the footswitch.

Parametric filter: for whenever one might be useful.

The 'Squeaky': My take on Brian May's 'Deacy', built before I'd ever heard of the latter. A house move turned up an old pair of speakers in a bin bag in the garage. One was a real mess; this one was usable, so I built a gel-cell-powered practice amp in it using a TBA820M chip. Later, when I read about the 'Deacy', I incorporated the ROG "May Queen", switched with the switch labelled 'May' / 'May Not'. In 'May Not' mode, the first stage of the MQ acts as a much-needed booster to the chip amp. Great fun, this amp.

Ruby amp: Built recently. Typically, I did a beautiful job of building an MDF cabinet for a 6" speaker and then realized that the whole thing was too big for what I wanted. Set about building this one, and everything went wrong. Still, I have just found some miniature metal corners that will improve it no end. Also gel cell powered.

And finally, an introduction to my other guitar-based pastime; "extreme customization", a cheap way to build guitars. Instead of forking out for expensive parts, buy a cheap complete guitar and use all the parts to rebuild it. Here, a cheap Kramer strat gets a stained, figured maple top, a radical reshaping with a power jigsaw, and some active on-board electronics. Watch out for the Dirtburst Alicaster, coming soon.

Hope you enjoyed this round-up. My thanks to all of you who have contributed to this stuff.

I like the "customized" guitar. Very cool.  

Cool!!! I loved your Ruby.

Gee Whiz, You got some nice lookin Build's,
Johnny

Mr. Pink's eyes are great!  :lol:

may.. may not! heheheh.. you're a genious  :lol:  very cool stompboxes

Quote from: Ge_Whiz4007 overdrive / compressor / expander from ETI mag in about 1981. My first homebrew project apart from a simple treble booster

Out of interest Phil, does this circuit use just the individual MOSFETs from the 4007 or are any stages wired up as inverters?

PS  You probably didn't see my post in the lounge, but I was wondering if you had (or had access to) a spectrum analyser (seeing as you're a radio nut)?  

Nice pics!

Thank you for your kind comments.

Gez - the 4007 overdrive has two gain stages similar to the 'Tube Sound Fuzz', using the hard-wired inverter stage and two complementary FETs wired as a second inverter. It then uses one of the two remaining FETs to vary the gain of the second stage for the compress / expand functions.

No, sorry, I don't have access to a spectrum analyzer. Are there no PC sound card software analyzers available cheaply? Just a thought. I could ask around the University when I'm back week after next.

Quote from: Ge_WhizNo, sorry, I don't have access to a spectrum analyzer. Are there no PC sound card software analyzers available cheaply?

Thanks for the feedback Phil.  Pico (spelling?) do one but I should imagine it's only as good as your soundcard.  Not that cheap either.

It's not imperative, I'm managing (just about) to do the job by sweeping my function generator while I scope bits of the circuit, but it would make life much easier.  

Not to worry about asking around Phil, just thought I'd mention it in case you did have one.

Thanks

"Parametric filter: for whenever one might be useful."

what schematic did you use for this.  and what does it do?

Hi, Antonio

The parametric filter provides simultaneous low-pass, high-pass and band-pass outputs for a widely variable frequency range, with adjustable 'Q' or sharpness. I've used it to tailor tone ranges while recording, split high and low frequencies from a guitar to process them separately, do wierd things to the sound of a drum machine, and it even oscillates or 'rings' like a tom-tom when the Q is set high.

The circuit is based on one given in one of the little 'Babani' electronics books on filters. I'm on holiday at the moment and don't have the book to hand, but I think the author is Andy Flind. It uses four op-amps to do all its tricks, and I'l bet that similar circuits are just a Google away.