Oh so close, but now what (new problem)

[TinCanAlley]

Originally Posted by old_tv_nut

There will be no waveform at the collector lead. Disconnecting the HOT will stop the horizontal sweep and high voltage pulses from being generated. They are the most likely source that drives the ringing since they are the largest currents and voltages in the set, but may not have the ringing themselves anyway - they may only be exciting the ringing in related circuits. With the HOT disconnected, you can look for the ringing elsewhere, but it may no longer exist.

Edit: have you tried experimenting with auxiliary grounding wires just to see if the on-screen pattern changes? If you see a change, it will help to identify hot spots for the ringing.

The ground wires were next on my list. I got the new scope and was trying to isolate the ringing. From there I was going to check all the grounds by using a jumper to a good ground source. If that didn't work, I was going to look at the caps and resistors.

If I can get the ringing waveform back with the HOT removed, I'll continue my troubleshooting while waiting for the new HOT.

[TinCanAlley]

Okay, the darn Postal Service can't even get a package here from FL without misrouting it to IL. Looks like my new HOTs won't be here until tomorrow or Thursday. In the meantime, I'm going to build me a dim bulb thingy. I have a ceramic ceiling socket, outlet and lamp cord. I will run the hot through the socket/filament and into the hot side of the outlet. The neutral goes directly to the neutral of the outlet. In the socket will be a 75w incandescent bulb.

Now from most of the replies I've seen about power usage for this chassis, the bulb should restrict the amperage to .62, is that correct? So there should be no risk of the unit drawing too much power and killing the new HOT, right? And what exactly happens if it tries? The bulb should be a full bright with the normal current draw of the chassis, so how do I know if it's trying to take too much? Is a 100w too much? I believe that would be a draw of .83 amps.

I'll post pics of it when I'm done.