1978 Maxon FL-305 Flanger (Sold 6/26/26)

This Maxon Flanger came in a lot with several other pedals I purchased. I got lucky with this one—it was already working and only needed some cleanup and routine maintenance.

I checked several of the capacitors, and they were still in good condition, so I decided not to do a full recap as I typically would. The original foam had completely disintegrated, leaving remnants stuck all over the pots. I thoroughly cleaned all of the pots and jacks with DeoxIT to make sure everything was functioning properly.

I also added new foam to help keep the batteries secure and give the inside a more original appearance. The pedal was carefully cleaned inside and out, and I waxed the exterior case. It isn’t mint, but it’s in great shape overall, showing only the typical scratches and wear you would expect from a 48-year-old pedal.

It runs on two 9V batteries and will come with two new batteries installed. It sounds excellent. With 5 knobs available for tweaking, it offers a wide range of tones, from subtle, mild flanging to wild, out-of-control modulation. It sets itself apart from the smaller form factor flangers of it’s time. Check out the service gallery to see what was done to it and the test vid below to hear what this cool vintage flanger sounds like!