PedalPCB Seabed (PT2399 Hybrid Delay)/Mad Professor Deep Blue Delay

[OD is Glorious]

Build Rating

5.00 star(s)

Sweet circuit and it reminds me of my AD-80 Analog Delay. I had some issues that arose from my late night to early morning soldering last night. Bad idea

I initially had no signal so this is what I did

1. I used my meter to check the traces
2. I reflowed the solder twice just in case.
3. I replaced the PT2399 and TLO72 twice just in case
4. I replaced the 78L05 - again, just in case
5. I checked my resistor values and I had one incorrect resistor in R2. I had 100K where there should’ve been 180K so I replaced it.
6. I searched build reports and compared my board... sure enough I had a 47n in C2 when it should have been a 47p.
7. On the PPCB auditorium platform I had zero signal. @Robert spotted an error in R3! I had a 360r - should have been 360k
8. Put it back on the platform... worked perfect. So a 360r in R3 was the MAIN problem which allowed zero signal!

Back to the report... lovely analog sounding delay. The controls work great, unity is great. I have an extra board that I will likely build another. I would compare this circuit to the PPCB Cataclysm in that they both have a lovely organic sounding delay. I called it a hybrid because it is digital/analog... or analog voiced in that it has an analog direct signal path. I collect delay pedals and specifically love the AD-80 - this sounds similar. Clarity and warmth!

I decided to name this pedal after the PT2399 processor and I added what it is, a "hybrid delay". I applied a waterslide decal to a Tayda gloss pink enclosure and then I sprayed with 2k clear. I used Switchcraft jacks and a blue illuminated footswitch. I used two 20mm and one 15mm knobs. I used a PPCB top jack plate. @swelchy your build report was helpful for finding errors. @bluedmc777 I may have slightly singed the top corner of that 22n by the Repeat pot lugs!

Whew... thank the Lord this one is in the books!

Notes:

1. Soldering was tight for that repeat potentiometer!
2. Make sure to orient the PT2399 correctly... it has competing dots! lol
3. Do not build pedals at 2am.

 

[bluedmc777]

I always scorch a cap in the middle right on 4-5 pot builds lol