01-19-2026, 01:14 PM
Welcome to the Phorum, Ken. The Phorum library has a chart of chokes (say that fast) but it's not all inclusive and I did not find yours in the list. Judging from the coil resistance of 3200 ohms, I would say it's in the range of 50-70 Henrys. If you want to get the power supply to supply power while waiting for a replacement choke you can substitute it with a 2.2K resistor 8 watts or more. In addition, you can double the capacitance of the filter capacitors. When you are ready to replace the choke, you can remove the supplement caps.
That parallel bypass capacitor across the choke was put there to decrease the possibility of voltage spikes or oscillation. Maybe rf interference too. Could be some dozen other excuses for it. You can leave it out or replace it.
That parallel bypass capacitor across the choke was put there to decrease the possibility of voltage spikes or oscillation. Maybe rf interference too. Could be some dozen other excuses for it. You can leave it out or replace it.
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