The chance of any ordinary mortal doing all that work is slim & none.
OTOH boosting power out of the stock X77 from 1/2 watt (2 v on speaker) to 40 watts (18 v) is like mowing the lawn. Identify electronlytic cap, replace it. Repeat.
the pity is, the reviled H100 I own has none of those hiss & hum problems. Just some crackling from loose tube sockets (replaceable) and sound dropout from loose push pins (easily soldered). Same tone generator and mixer transformers as an X77. Plus H100 doesn't have the (according to 99.99999% of the rest of the world) obligitory leslie rotary speaker. Personally, I don't miss it. I'm not buying a Leslie, I'd rather have something else in the music room. Oh, I have some high overtones that allow me to make sounds Jimmy Smith would run screaming from. Dspiffy was seriously afraid of highs, too. wouldn't touch an H100 or X77 with a 10' pole.
1) Jo, I hope I'm not being called a liar. If so, you're welcome to visit my work any time.
2) I'm sure you know that there's more to troubleshooting than just replacing electronlytic capacitors.
3) I like H100s and spent many hours playing them in my younger days, but am trying to stay away from that hot, heavy, high-voltage technology.
4) Jimmy Smith, RIP, won't be screaming at anything anymore.
5) Dspiffy?
Over the years: Hammond M3, BC, M102, B3, four X77s and three PR-40s, a Thomas Electra and a Celebrity, three Fender Rhodes, Roland HS-10, HP-2000, HP-600, RD-600, JV-880, a thing made by Korg (?), two Leslie 910s, 122, 257, 258, 247, two 142s, and three custom-built Leslies. Wow, way too much money spent!
1) Jo, I hope I'm not being called a liar. If so, you're welcome to visit my work any time.
2) I'm sure you know that there's more to troubleshooting than just replacing electronlytic capacitors.
Boosting power out is just that. Getting rid of the hum, if a non-suffix model, is probably beyond any church's patience. I forsee an import keyboard on a stand with an import sound system in the future of this church.
city Hammond H-182 organ (2 ea),A100,10-82 TC, Wurlitzer 4500, Schober Recital Organ, Steinway 40" console , Sohmer 39" pianos, Ensoniq EPS, ; country Hammond H112
Yeah, that's why I apologized to Zack for going off topic, but there's a lot of work in his future.
Over the years: Hammond M3, BC, M102, B3, four X77s and three PR-40s, a Thomas Electra and a Celebrity, three Fender Rhodes, Roland HS-10, HP-2000, HP-600, RD-600, JV-880, a thing made by Korg (?), two Leslie 910s, 122, 257, 258, 247, two 142s, and three custom-built Leslies. Wow, way too much money spent!
Not too much action in the X-77 corner. I've got an X-77 that I need to sell. Any tips to clean it up and/or get rid of some of the hums? Most of it seems to be coming from the Leslie as when I switch between main and echo the hum goes away.
Not too much action in the X-77 corner. I've got an X-77 that I need to sell. Any tips to clean it up and/or get rid of some of the hums? Most of it seems to be coming from the Leslie as when I switch between main and echo the hum goes away.
The X-77 was designed so you could have two Leslie cabinets, Main and Echo, and switch between them. So, if you don't have an Echo cabinet, it makes sense that the hum goes away when you switch to Echo because now the Main cabinet isn't being fed signals from the console.
In other words, the hum is in the console. Eliminating the hum requires getting into the console, eliminating the crappy push on connectors, adding shielding to the preamp boards mounted on the back panel, rerouting wires, ditching the music light inverter, and eliminating ground loops.
Interested in loving my x77 & matching leslie. .. need some help a few questions. . Thanks!!
I love my X77 also, but I've learned the hard way during my first rebuild of her that trying upgrade 40-some year old electronics is truly pointless, and to be honest, the design of those circuits wasn't that great to begin with. In my second rebuild, dubbed Mark II (just because it sounds cool), I have scrapped all the electronics and chose to go with a Trek II, SSP3 preamp. The balanced outputs at the G1 and G2 terminals drive an active crossover, which in turn drives the amp for my rotor cabinet, with all balanced lines through out to avoid him. The SSP3 also provides a 3-spring reverb, percussion, and also the drive and recover circuits for the scanner and line box I added for B3-style vibrato and chorus. It's an ongoing process...
Not too much action in the X-77 corner. I've got an X-77 that I need to sell. Any tips to clean it up and/or get rid of some of the hums? Most of it seems to be coming from the Leslie as when I switch between main and echo the hum goes away.
How much for the X? ☺
Over the years: Hammond M3, BC, M102, B3, four X77s and three PR-40s, a Thomas Electra and a Celebrity, three Fender Rhodes, Roland HS-10, HP-2000, HP-600, RD-600, JV-880, a thing made by Korg (?), two Leslie 910s, 122, 257, 258, 247, two 142s, and three custom-built Leslies. Wow, way too much money spent!
Mine works ok, i has a noisy berring or something inside squealing a bit. A ground connection and a red and black wire with white threaded, pin connection, disconnected from the mercolac? Fitting. And it seems to have a preamp wired in it for what reason? I can send pics if anyone can assist!! And if you know if it is worth fixing the squeaky berring. Thanks a bunch!
Mine works ok, i has a noisy berring or something inside squealing a bit. ... And if you know if it is worth fixing the squeaky berring. Thanks a bunch!
Thanks for the help. Do you know what the red & black wires in the leslie x77p does? It has a white connection on it and looks like it goes to the mertolac?? But it spins, so i oil it? Any help is appreciated!
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