I just finished the HardOne (https://www.musikding.de/The-HardOne-Booster-kit) and I'm having noise issues, I hope someone out there can help me out.
The build is simple and went straight as it is such a simple pedal and I really liked the sound of it.
A couple of differences from the original wiring thou:
- I used the 3PDT wiring board, so I moved R5 (LED resistor) from the main board to the wiring board and pushed 9V from where the R5 was supposed to be connected.
- From the 4 points of ground on the main board only 2 (coming from the the 9V mains supply and out to the wiring board) are connected. The other 2 from/to the signal chain are wired through the wiring board.
- Removed the battery connection, I have no plans on using it.
I got together in the same order a brand new 200mA RockPower supply and got here years old Caline CP-05 Pedal Power that usually powers my whole setup.
Issues:
With the RockPower supply I got a pretty loud high pitched noise, with the old CP-05 the noise is gone (I would assume with battery is also gone).
I also noticed a lot extra general "amp" noise (not the high pitched, but just that hum from the speaker) when the pedal is just connected and the pedal is off, in bypass.
Attached are photos of the build and a few sound clips for demo.
Sounds clips are all a few seconds of silence and a couple of chords from the guitar.
The sounds clips were all recorded using direct USB input with amp emulation from line6, so the "amp" noise is less prominent than on the real amp. On the real valve-amp is a bit worse =/
Questions:
Is the RockPower supply really that of bad, or is there something wrong on my build?
Maybe I missed some ground on my lil modifications?
Even if the RockPower is not so great, can I do something to the HardOne? I tried on the Double Shot the same supply and there was no high pitched hum.
I did a lot of measurements with the multi-meter and couldn't find any missing connections, of course I could check more stuff, just let me know if there's anything.
Anyone can help here?
hardone-noise.zip
- guitar-direct-input.mp3: just the guitar to the USB input, just to hear in comparison
- guitar-pedal-off-bad-supply-input.mp3: pedal off, you can hear the increased "amp" hum-noise
- guitar-pegal-on-bad-supply-input-move-gain.mp3: pedal on, using the RockPower supply, that annoying high pitch noise is there. I move the dial up and down after the guitar chords.
- guitar-pegal-on-good-supply-input.mp3: pedal on, using the CP-05 the amp hum is louder too, but there's zero high pitch noise.