All this talk about HV, and getting zapped, or even killed. I've yet to see anyone mention a safe method of insuring the filter caps are bled off.
So here goes: I use a "chickin stick". It's simply a plastic rod, about 2 feet long, with a resistor longitudinally affixed to one end. A wire about 2 feet long soldered to one lead on the resistor, with alligator clip on other end of wire. The opposite lead on the resistor protrudes like a probe. Clip to ground, and "probe" the HV out for a few seconds, and caps will be discharged, rendering the PS safe to work on. My particular probe is a 10w 50k resistor. I use it on KV + supplies. I suspect for the average audio amp supply a 10k-20k resistor would work just fine. The higher the resistance, the longer it takes to bleed off, but smaller spark on first contact.
If you like fireworks, you can just "crowbar" it with a screwdriver, but I would not reccomend that.
So here goes: I use a "chickin stick". It's simply a plastic rod, about 2 feet long, with a resistor longitudinally affixed to one end. A wire about 2 feet long soldered to one lead on the resistor, with alligator clip on other end of wire. The opposite lead on the resistor protrudes like a probe. Clip to ground, and "probe" the HV out for a few seconds, and caps will be discharged, rendering the PS safe to work on. My particular probe is a 10w 50k resistor. I use it on KV + supplies. I suspect for the average audio amp supply a 10k-20k resistor would work just fine. The higher the resistance, the longer it takes to bleed off, but smaller spark on first contact.
If you like fireworks, you can just "crowbar" it with a screwdriver, but I would not reccomend that.