apc42069
Well-known member
harumph.
following the rabbit hole of other minnow troubleshoots has only scrambled my brain worse. hoping one of y'all can help me get this bad bitch up and running!
at first I thought there was no output (assumed ground), until cranking the amp. I still didn't have a signal, but I was hearing clicks... said clicks (or thumps, or thuds, or whatever) do match the tempo of the rate LED, which is adjustable via the Speed pot.
All parts sourced from reputable retailers - except IC3 which I got on amazon. I've had success with the same batch of chips in the past.
Voltages:
following the rabbit hole of other minnow troubleshoots has only scrambled my brain worse. hoping one of y'all can help me get this bad bitch up and running!
at first I thought there was no output (assumed ground), until cranking the amp. I still didn't have a signal, but I was hearing clicks... said clicks (or thumps, or thuds, or whatever) do match the tempo of the rate LED, which is adjustable via the Speed pot.
All parts sourced from reputable retailers - except IC3 which I got on amazon. I've had success with the same batch of chips in the past.
Voltages:
| Pin No. | IC1 | IC2 | IC3 | IC100 | Q1 | Q2 | Q3 | Q4 | Q5 |
| 1 | -0.21 | 0 | 0.646 | 8.98 | 0.944 | -0.147 | -0.661 | 0 | 0 |
| 2 | -0.094 | 0 | 0.648 | 5.129 | 0.794 | 0 | -0.796 | 0 | -0.125 |
| 3 | 0 | 0 | 0.695 | 0 | 0 | 0.341 | -0.211 | -6.07 | 8.98 |
| 4 | -7.95 | -7.95 | 0.602 | -3.35 | |||||
| 5 | 0 | -4.53 | 0.568 | -7.95 | |||||
| 6 | 0.005 | -0.019 | -0.261 | 4.004 | |||||
| 7 | 0.005 | -6.65 | 0.643 | 5.522 | |||||
| 8 | 8.99 | 8.99 | -5.759 | 8.99 | |||||
| 9 | 0.145 | ||||||||
| 10 | 0.16 | ||||||||
| 11 | 0.945 | ||||||||
| 12 | 0.694 | ||||||||
| 13 | 0.742 | ||||||||
| 14 | 0.701 | ||||||||
| 15 | 0.717 | ||||||||
| 16 | 0.049 |
| D1 | D2 | D3 | D100 | |
| Cathode | -0.198 | -0.44 | -0.021 | 8.99 |
| Anode | -0.086 | -0.196 | -6.66 | 9.29 |
