[HAM] My Summer Vacation (long-ish)Charles Buckingham tonewheelorgan at rogers.comSat Sep 2 10:33:57 CDT 2006
Good day all, I had meant to share this post three years ago but for one reason or another never got around to it. I've now got a part II to it, so I thought I'd tell the whole story. Back in the summer of '03 I spent a week visiting family in a small town on the south shore of Nova Scotia. While out for a stroll one night down the main street, I happened upon the local music store (which also doubled as the local Sears catalogue outlet). Through the window of the closed store I could just make out the distinct shape of a Hammond M series spinet in the back of the store. As an "avid hobbyist" (read: Hammond nut), I wanted to take a closer look. The next morning I went back to the store. It appeared to be an M3 with a lime oak finish, but turned out to be just incredibly sun faded. The owner said that he had bought it from a church and it was not working. After running off at the mouth for a while about tonewheel organs, he asked me if I could fix it. The next thing I knew, the back was off and I was up to my arms in spinet. The line cord was original and horrid. At the bottom, there was the telltale sawdust from an unlocked generator bashing against the case during transport. Someone had removed the original speaker and installed a cheap 4 ohm automotive woofer. The store owner said that the organ had been "serviced" for the church by someone after they said that the organ was distorting. Whoever serviced it had swapped speakers and pretty much disappeared. On the plus side, the generator had been regularly oiled. We gingerly plugged in the power cord and fired it up. Everything lit up, the wheels were spinning but there was no sound. I went to the local library, downloaded a copy of the schematic and went back to the store. I asked the owner if he had a meter handy and he did not. He said that he knew a local gentleman who used to be a ham operator and he would ask him. He came back with a functional but well used Heathkit IM-2202 meter and some stubby banana leads that doubled as probes. After some careful poking around I determined that R31 was fried. Digging around in a box of assorted parts we found a replacement resistor (probably the same vintage as the organ). Using a soldering iron that looked like it came from a wood burning kit, I replaced the resistor and we were up and running. I checked out all the features and everything worked fine. The action was nice and tight. It really seemed as if it was only played on Sundays. I instructed the owner on all of the functions and workings (i.e. why don't these drawbars sound on the upper keys, how the percussion works etc.) and showed him how to lock down the generator for safe transport. I left the schematics in the back of the organ with a description of the service performed. As I was returning home a few days later, I told the owner to make sure he replaced the cruddy old line cord and the mismatched speaker before using the organ regularly. Above all I asked him to make sure that it got played. Although he played mainly guitar, he said he was planning to keep the organ. Despite that I said that I'd do the repair for free (I was on vacation), he insisted on paying me for my time. I gratefully accepted (and probably spent most of it on beer!) My Dad died last December and he requested that we bring his ashes to be buried next our Mom in Nova Scotia. We returned last week to do this and I took the opportunity to follow up on the organ. When I walked into the store the owner recognized me immediately. He said that the organ had sat around for a few months as he couldn't make the time to play it. Rather than having it collect dust in his store, he moved it to a nearby studio owned by a friend. Apparently it has ended up on the recordings of many locals and various groups traveling through the area. As he put it, people would walk into the studio, take one look at the Hammond, and say :"I want _that_ on this recording". I don't fix organs for a living so it was an odd (but good) feeling to know that something I worked on was being used and enjoyed by so many people. Then the owner said "Oh yeah, it quit about a month ago...". His buddy turned it on and "a whole bunch of smoke came out of it". Well, the timing couldn't have been much better for him so I said I'd take another look at it for him. He had it back in the store within a day or so. When I lifted the amp out there was a puddle of stinky brown wax on the bottom of the case. The power tranny had fried releasing the mystical blue smoke that is critical to the proper operation of all electronic devices. I pulled out the rectifier and there were pieces of filament tinkling around in the glass. I knew he wouldn't have a spare A0-29 floating around in his parts bin. Hammond organs (even spinets) are pretty scarce in that part of Canada. I told him I had a spare back at home (thanks Tim!) and he said "Do you want to sell it?". I offered to take the amp (sans transformer) home with me, repair it, and ship it back to him. I was concerned that if I just shipped him the working transformer without checking out the rest of the amp first he might end up with another puddle of wax. He paid me in advance for the repairs and return freight costs and using the same bent-tipped wood burning kit soldering pencil I removed the amp from the organ. He said "I guess I'd better buy a new soldering iron if I'm going to put that back in". I pulled the tubes, packed everything well, and checked it through with my luggage at the airport (definitely not a carry on item). So now I get to the crux of this long post. Here I am with an A0-29 that blew it's power transformer. Apart from the dead rectifier there are no other obvious signs of trauma. I'll give everything a good once over, check the replacement transformer for leakage, add a proper line cord (he never replaced the original) and add some fusing for cheap insurance. Does anyone have any general or model specific suggestions or recommendations before I stick it in a test organ and fire it up? Many thanks for reading. I look forward to any feedback. Regards, Charles
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