Hammond Case Size Chart

I’ve been poking around at effects pedal enclosures again and thought it would be nice to have a chart to compare the actual sizes of the common Hammond-type 1590 series project boxes. So I made up a Hammond 1590-series Comparison Chart [PDF].

Hammond 1590 Comparison Chart

I used dimensions from Hammond and from a third-party lookalike (the boxes sold by Mammoth Electronics, in this case), unscientifically rounding dimensions to what seemed to make sense and then approximating those in Inkscape. The stated dimensions should be close enough, possibly 0.1″ off but usually less. The one exception is the height of the 1590LB boxes, which can differ almost 0.25″ from Hammond to others – I went with the larger 1.3″ dimension on that one. The actual size when printed should be close enough to actual size to get a good feel of how big it they are in addition to relative sizes.

The PDF will probably print more nicely than the PNG file, but both are full 8.5″x1″ letter page size – for dimensions to be accurate you’ll need to print at actual size, not scaled down to fit in margins at all.

Licensed under Creative Commons Attribution-NonCommercial – share and print for reference as you like, but please keep attribution intact or link back. Hope it’s useful!

Ruby Amp Build

Ruby Amp: Finished Cab without GrillOne of the things I have been wanting to do almost since I got an electric guitar – over ten years ago – is to build some of my own effects pedals. I decided earlier this summer (2012) that I am actually going to do that, by golly, and not just true bypass mods and control switchboxes like I’ve done in the past. Real analog effects circuits this time.

Then I realized that I wanted a way to test things at my electronics bench without lugging my mega-ton 112 combo up and down two flights of stairs and decided I needed a practice amp first. I could buy one of those, I guess, but I want to build stuff – why not that, too? And I managed to do it for practically free. Continue reading

Emergency Garage Release

We had a power outage a while ago, in the middle of which someone needed to get out of the garage and… couldn’t. The door that needed to be opened was, naturally, the one that wedges itself in slightly when it shuts, so it jams the electric opener’s emergency release.

Further investigation revealed that a good hard judo-yank will release it (with a bang), but not everyone can do that. So I made a release helper – because almost anyone can step on a lever. The pictures pretty much say it all – just hook the custom specially calibrated clothesline to the release pull and step on the board.

This is it.

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Repairing A Mic Stand Adjustment Bolt Thingy

There’s got to be a better term for those little knobs that you tighten (or loosen) to adjust mic stands. And this is actually about making new ones for replacements. Anyway. A couple of these knobs stripped or went missing and here’s how I put wooden knobs on standard (cheap) hardware store bolts to replace them. Continue reading

On Vacuum-Pumping Water Out Of Large Things Filled With Water

If you, like I, have a boat full of water (and sticks, and leaves, and dirt, and other crud I was scrubbing out of it), then you also may not want to just tip it up and let all that trickle through the hull drain at a slow an increasingly clogging rate. Never mind the residue left inside the hull.

My trusty garden-hose siphon was not going to cut it this time, either. I could have used a bailer… but that’s just not as much fun. And no, thank you, I didn’t want to use my trusty Rainbow vacuum cleaner to pump a gallon at a time again (an often dicey and tedious prospect). And more splashy-messy. So I used good ol’ R2VAC2 as a suction pump/super-siphon starter.

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When The First Idea Doesn’t Work…

When I put the headlight on the snowblower and then proudly wrote a post detailing my amazing methods and proclaiming “it works”, well, I should have waited because it doesn’t. It held up the light until I actually started the tractor. Then it slowly tilted because the clamp wasn’t tight enough and I spent that hour of snowblowing in between correcting the light angle. Continue reading

In Which We Upgrade An Antenna

As I’m sure you all know and undoubtedly agree, the bigger the antenna the better it works. This is true of wide-band receive aerials, anyway, at least up to full wavelength or so (I think – my antenna theory is a little rusty these days). Most people don’t like ten-foot antennae on their car, though, so most AM/FM receive antennas are quite a bit shorter. I, however, being a fan of good radio reception and also of big antennae, decided it was time to upgrade the car again. Continue reading

It’s Spring, And The Servers Are Migrating

I got another eMachine tower from a friend on freecycle a couple weeks ago (thanks Dan!), which is, conveniently, an upgrade from my current tower. We have progressed from an Athlon 2700+ to a 3.3Ghz Celeron D with faster RAM and SATA on the motherboard, too! We are way hip, dude. So to upgrade we will go. The trick is to fit my DVD burner and twin 250GB PATA drives in with the stock 120GB SATA disk all into the minitower. I had to put my old Promise TX2 (ATA-100) controller in for the big drives since the blessing of modern progress has given me a four spiffy SATA channels but only one ATA. And I need that for the optical drives. Things could be worse.

Like, for instance, running out of power connectors. The blessed progress also gave me only two standard molex connectors, two SATA power connectors, and a floppy drive plug. (Like I said, modern progress.) I had to use my trusty power splitter and hack in another molex from my collection of wire bits.

Thanks to said molex also having a floppy power plug attached, we have sucessfully adapted Floppy Power to Non-Floppy Things, both cleverly and non-destructively. If you, too, find yourself in need of adaption, get one normal-size paper clip, straighten it out, cut it into four fairly equal pieces, and stick them into one of the floppy power plugs, like so.

Then, plug it into the other floppy power plug. Make sure you match up wire colors or things will blow up. (Or, at least, smell bad and not work again, ever.)  Your paper-clip pins will probably get pushed out the back of one of the plugs, which is OK as long as you push them back in with your screwdriver or something. That’s why they are so long to begin with.

Then, plug it all in. Nothing wasted! All I need now is more RAM, though that’s not so critical running a light-duty file/backup/media server with Crunchbang.

Installing a Vacuum Gauge in a Volvo 240

In my quest for fuel economy – and in the interest of having more gauges and fancy lights in my car – I installed a vacuum gauge. Since I drive a car made well prior to the advent of ODB-II I am left out of all the fun electronic things one can plug in that way I must instead resort to old-school mechanical-type things, like a vacuum gauge.

I though I’d document it since the forum people say, essentially, you hook it into the manifold or vacuum line, you can figure it out, it’s not hard. They’re right, but I like photos. So here they are.
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Thing Timer

I’ve always wanted a timer for, say, turning off Christmas lights after I’m in bed, or to shut off the battery charger after an hour. Like a big kitchen timer attached to a light switch. So when I found this in a scrap pile it’s use and purpose in life were obvious – unlike many of the other things I have collected. Thing Timer! Not just for eggs anymore.

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