I don’t think you can play this trick with log pots, by the way.
The terminals match up with the potentiometers’ leads and since the pots are linear, I flipped them around and connected them to the terminal blocks directly. I added two three-contact terminal blocks (5mm pitch) for the pots on the PCB. I like reconfigurable builds that are easily re-purposed. Maybe it’s my eyes, but even the DIP and standard size discretes seem smaller and smaller… Once I got some flux from Lowes (desperation!), soldering went better. For some crazy reason, I had trouble keeping my soldering tip clean. Please don’t let this concern stop you from buying a kit, however.
I would call them “surplus grade.” If building the finished kit into a permanent project like a pedal, I would replace the pots with fresher parts. Physically, they appear dingy and functionally they are a little noisy. Quite decent of them! My only niggle is the quality of the potentiometers. It includes many unexpected extras: both 3.5mm and 1/4″ phone jacks, knobs, switches, power LED and parts needed for PT2399 mods. Synthrotek provide a rather nice board and kit of parts. In addition to the PT2399 and its discrete minions (resistors and capacitors), there is an LM78L05 +5V power regulator. The delayed signal is fed back into the input with feedback level set by a second 50K linear potentiometer. The VCO control voltage (pin 6) determines the delay time and is set by a 50K linear potentiometer. The Princeton Technology PT2399 is a workhorse appearing in many guitar pedals, synth modules, karaoke mixers, etc. The kit is a relatively straightforward implementation of a PT2399 delay - right off the datasheet. Synthrotek offer a broad range of inexpensive kits and heck, they’re located nearby in the Pacific Northwest! Synthrotek PT2399 Dev Delay - It’s in the bag Rather than buying - and potentially, disassembling - a delay effect pedal, I decided to give the Synthrotek Dev Delay kit a try. This well-known effect delays one side of a stereo pair that changes our perception of a sound source in the stereo field. My intuition suggests the Haas effect or as Wikipedia would have it, the precedence effect.
PT2399 SIMPLE DELAY CIRCUIT MOD
I really like the Korg Volca Mix stereo width effect and want to add something similar as either a mod or an external effect. I’d like to add more animation to the distinctly sound of the Yamaha PSS-A50.
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