Here's Valve Wizard's take on the PT2399 delay. It's very similar to most PT2399 delays out there, with a dual op-amp … | Delay pedal, Guitar pedals, Guitar effects
ElectroSmash - PT2399 Analysis
LPD White Rabbit Demo Dual PT2399 Based Analog Delay Pedal - YouTube
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PT2399 Delay Pedals - How to Add Self Oscillation - YouTube
PT2399 Digital Delay IC - DIY Audio Circuits
Guitar Pedal X - GPX Blog - Chris Benson extracts maximum flavour from the PT2399 Chip for his smart Analog Voiced LFO Wow and Flutter Tap Tempo Benson Delay
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PT2399 Dev Delay Assembly Instructions – Synthrotek
The alternative to bbd delays : the pt2399 | Anasounds