Lidmotor's Penny circuit help needed.

[Legalizeshemp420]

Almost but not as symmetrical as that and the MPSA18 is backwards also channel A is on the base not the collector.

[TinselKoala]

I don't know what you are seeing in that signal but it's not anything like a JT oscillation nor what I see with the reversed transistor. Look at my scopeshots, you'll see that I use the same timebase and vertical settings for both the correct orientation and the reversed one, far faster than your 5 ms per div.

Your scope in the video is set to 5 milliseconds per horizontal division, right? So the signal you are showing is at _exactly_ 500 Hz! It is less than 2 microvolts in p-p amplitude. This is not the circuit oscillating, it is a sim artefact, probably.

Look at the bottom left of the screen where it says "x pos. (Div) = 0" Try changing this to "3" and see if the trigger point moves over to the right.

[Legalizeshemp420]

It does but not those cursors.

[TinselKoala]

OK the cursor controls are probably the arrow buttons T1 and T2 at the left, just below the trace display window. The cursors should be vertical lines, and the position in time relative to the trigger point will appear in the window to the right of the cursor buttons once you move them off the zero line. The voltage levels where they intersect the traces will be listed there too.

[Legalizeshemp420]

Correct and the point under the cursor that is moving shows you the time, and values of channel A and B that is under the cursor being moved but in a T2-T1 way.  So, move T1 and leave t2 at pos 0 and get negative numbers vice versa will get positive numbers.