Don't Tell RayPT2399-Based Oil Can Delay

From the vendor

When it comes to delay, we are all aware of the tape, analog, digital, and even magnetic drum style delays like the Echorec. However, there is one design that has been almost lost to time, and that is the oil can delay. Invented by the founder of Tel-Ray, the oil can delay operates by using a spinning magnetic disk with carbonized rubber read and write heads. The disk spins in a can of special oil that helps to keep the rubber heads lubricated and to help prevent the leakage of the magnetically stored data.

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In the guitar pedal world, there has been a small resurgence of interest in the oil can delay due to its unique, murky sound. Old Blood Noise Endeavors and Catalinbread both have digital emulations of them, but as far as I could tell, no DIY designs existed. I decided to see what I could do with the ubiquitous PT2399. Over the course of a few months, I spent hours reading and watc