Simmons SDS9 Major Component Layout
Michael Hightower I’ve been working on a number of SDS9s lately, and it can be a real pain trying to find the right IC. So, I’ve made a little map for myself.…
Synth Repairs
Blank Patch Charts
I’m going to slowly start making new blank patch charts for synths without patch memory. I’ve just got one so far, but hopefully it will be useful to someone. Minimoog…
Vintage Synth Components
Below are tables containing components used in vintage synthesizers. This list will grow as I identify more items. Connectors: Potentiometers: Other Components:
Vintage Synth Hardware, Screws, Nuts, Washers, etc.
As I order parts to replace the hardware on vintage synths, I’ve decided to track what these parts are. Mainly, this is for myself, but hopefully this will be helpful…
Kurzweil K250 Screen Replacement
If you have a K250 then you also have (or have had) a dead or dim screen. They’re all that way. But now, thanks to the magic of buying things,…
Removing and Repairing Yamaha Electone Tremolo Units
This guide was made for my E-70, but from what I can tell this is pretty much valid for any Electone using the big spinning foam thing that is similar…
Hammond L-100 Revised Service Manual
I’ve re-created the Hammond L-100 service manual because the scans commonly found online are just terrible. This version has completely re-drawn schematics, searchable text, and some information on modifications.
How to Scan Large Schematics
Scanning in these Yamaha FX/FS schematics has been a real chore. But I’ve come up with a pretty solid method that goes relatively quickly and produces nice results. This approach…
Yamaha FX Series Sales Literature
My Yamaha FX-3 came with some sales literature so I’m scanning it in while also scanning in the schematics for the FX/FS series. I really like the logo they used…
Yamaha FX/FS Series Schematics
Here are schematics for the Yamaha FX/FS series of organs. I’m scanning in what I have which are the schematics for the FX-3 and additional content for the FS-300/500. These…
Synth and Musical Equipment Repairs
It’s been a long time since I’ve done anything with this site. But I’ve been doing a lot of repairs that folks might find useful. So, rather than bore my…
Getting closer to importing Emax disks into my ESI-32
For a while now I’ve been trying to find a way to recover my old Emax floppies. Here’s the deal: The ESI-32 can import Emax stuff but can only do…