Spin Semiconductor

The chip was the problem. The replacement came today and after some fidgety soldering it's down and working.

The sound is crystal clear. The reverbs, chorus, flanges and delays sound great. External EEPROM is working. Now for some programming fun.

...Gary

I loaded the external EEPROM with the OEM suite from the web site. I'm not sure how the echo program compares to a simple delay, but I hear the clicks and pops on all of the programs. I was planning on learning how to code the DSP when it was all working and I could hear the implementation (i.e., I'...

Well, the 9V battery idea didn't work. And my finer tooth comb did not turn up any opens or shorts. What I've observed is that on programs 1 and 2, if I turn the mix of the effect (Flanger or Chorus) to off and the Reverb mix to off also, the original signal comes through to the output clean as a be...

Hi Frank, All of the programs, except for Tremolo and Test, have the same problem. A friend of mine just built the 2nd of the 2 PCB's I made and his is working flawlessly, so I'm pretty sure it's my physical build skills (or lack thereof). We used the same components (split an order from Mouser). I ...

Hi, I built a homemade version of the circuit from the data sheet and the tonepad website. I used surface mount the resistors and decoupling caps. Caps in the audio path are WIMA through-hole types, as are the JFETs, crystal, and 3.3V linear regulator (500mA version). The power input is 9VDC. The ba...