The Project Blog

Let’s take it apart

Delta 1010 Repair

February19
delta1010-tI love my Delta 1010. It has given me several years of reliable service. One morning several years ago, I noticed the the VU meter on my Alesis 12R was staying partially lit. Turns out that all of the outputs on the Delta 1010 had noise in them and the audio that did come out was distorted. I thought it might be the end of the road for my 1010, but after a little looking I found that there had been problems with the capacitors on some models. I cracked the case on mine and much to my relief, I spied that one of the caps in the power supply line had swelled and was leaking some electrolyte. How can that be relief? It meant that the problem was probably right there and should be quite easy to fix. Read the rest of this entry »

The Aquamatic 425 Valve

June30

Aquamatic 425In 1998 or so, there was Spud Gun MkI. There are very few surviving pictures of it and even fewer of it in action. It was built wholly of 2″ PVC pipe. Two 10′ joints made up the tank; the barrel was a single 10′ piece. A 1/4-turn ball valve controlled the firing and it was sticky and hard to turn. More important, the person firing the gun was so occupied with turning the valve that they couldn’t watch the spud fly. MkII needed some sort of quick-action big-bore remotely-triggered valve. Several years ago browsing through Mendelson’s in Dayton, this beauty was staring at me from a shelf. I bit.

It was painted with three or four coats of ugly cafeteria-green paint. I stripped it and put a coat of primer and safety yellow on it. I also plumbed it up with a MAC electrically operated valve and a gauge. Until today, it had never been fired. After some less-than-spectacular firing, I tore it down to make sure the piston hadn’t rusted in place. These are the photos. Also included, photos of firing.

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One Behringer B2031, Fried

June15

B2031One of my B2031 studio monitors crapped out in spectacular fashion last night. In a pyrotechnic display reminiscent of an arc welder, an apparent failure of the power supply treated me to flashes of light, copious amounts of acrid smoke, tiny drippy bits of melted metal and an aural experience only available when large alternating currents pass through components undergoing transition from solid to gas.

Downside: It’s broke.

Upside: I get to take it apart, see what broke and fix it.

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E2M1.5 Disassembly

February27

E2M1.5 - 01Out of the box, this pump gets the same treatment. With fingers crossed, I’m hoping to have better luck with this one. Good working order would be nice, but a complete complement of parts would do.

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Speedivac 2 Disassembly

February24

Edwards Speedivac 2 Vacuum PumpNo more than 5 minutes passed between the point in time where I opened the box and the point where I was taking the whole thing apart. The first order of business was to get the motor running.

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