mybud
Well-known member
- Build Rating
The whole lengthy saga of rewiring, testing and failing, and finally getting the beast to function is at this thread:
Thread 'Epic fail recovery (L4 functioning)'
https://forum.pedalpcb.com/threads/epic-fail-recovery-l4-functioning.26223/
After all is said and done, most if not all of the problems were of my own making.
I finally rewired the original daughterboard, given that my kludged PSU would not provide +- 15V, but weirdly enough, +5V and -25V, so I figured the simplest way to solve this was to build the circuit as intended.
I think I panicked and made many false assumptions regarding the Traco, but believe me I learned a lot from troubleshooting and getting assistance from colleagues here and Traco’s technical dept. Thanks Patrik. This circuit really doesn’t work comfortably without the daughterboard in place as I discovered…
It’s pretty ugly to look at, I’m afraid, but I’m so glad at the positive outcome after all the self-created drama I put myself through.
I had missed a cold joint on the frequency pot, which meant channel 2 was quirky, to say the least.
Once fixed, it sprang to life and is really the best part of the circuit TMM. Diming the mid control and sweeping through the frequency knob sounds close to a resonant filter, which one might expect from a Moog design, and this channel produces a very wide range of bass-friendly toans. The first channel is more basic but also usable.
For whatever reason, this turned out to be one of the most challenging builds I’ve done. Thanks to everyone who chimed in on my original thread. I’m going to give it the full complement of stars and myself -1 for losing the plot at the last minute. Or maybe a hesitant +1 for not allowing the initial silent response to deter me in my conviction that I could and should get it to work eventually.
So, as always, thanks for reading and may all your builds go swimmingly
Thread 'Epic fail recovery (L4 functioning)'
https://forum.pedalpcb.com/threads/epic-fail-recovery-l4-functioning.26223/
After all is said and done, most if not all of the problems were of my own making.
I finally rewired the original daughterboard, given that my kludged PSU would not provide +- 15V, but weirdly enough, +5V and -25V, so I figured the simplest way to solve this was to build the circuit as intended.
I think I panicked and made many false assumptions regarding the Traco, but believe me I learned a lot from troubleshooting and getting assistance from colleagues here and Traco’s technical dept. Thanks Patrik. This circuit really doesn’t work comfortably without the daughterboard in place as I discovered…
It’s pretty ugly to look at, I’m afraid, but I’m so glad at the positive outcome after all the self-created drama I put myself through.
I had missed a cold joint on the frequency pot, which meant channel 2 was quirky, to say the least.
Once fixed, it sprang to life and is really the best part of the circuit TMM. Diming the mid control and sweeping through the frequency knob sounds close to a resonant filter, which one might expect from a Moog design, and this channel produces a very wide range of bass-friendly toans. The first channel is more basic but also usable.
For whatever reason, this turned out to be one of the most challenging builds I’ve done. Thanks to everyone who chimed in on my original thread. I’m going to give it the full complement of stars and myself -1 for losing the plot at the last minute. Or maybe a hesitant +1 for not allowing the initial silent response to deter me in my conviction that I could and should get it to work eventually.
So, as always, thanks for reading and may all your builds go swimmingly
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