Excellent progress, your methodical troubleshooting is a pleasure to watch - a good mystery unfolding. I have seen fixed voltage regulators "oscillate" - a sawtooth output when operated near rated output current caused by deterioration of components in the overload protection circuit. This has been mostly in older regulators - TO-3 style. A quick squirt of freeze spray will cause it to stop for a while. This "oscillation" can cause some very weird problems. Regards, David
Lieber Stefan, auch wenn es mich technisch längstens überfordert, ist es immer wieder faszinierend zu sehen, wie Du mit Sorgfalt, Struktur, Methodik und Deinem "magic finger" den Fehler so langsam aber sicher einkreist, ihn sichtbar werden lässt. Ich bin nicht so leicht zu beeindrucken aber das, was ich hier sehe, ist großes Kino ! Ganz herzlichen Dank. VG Jürgen
Still on the edge of my seat...this reminds me of a FRG-7 (showed signs of a lightning strike) that I never did fix. Spent hours on it & I got everything "working", but it still didn't receive. But I didn't have your capability. Thanx for sharing & even doing it in english. Very kind of you.👍
Excellent progress, your methodical troubleshooting is a pleasure to watch - a good mystery unfolding. I have seen fixed voltage regulators "oscillate" - a sawtooth output when operated near rated output current caused by deterioration of components in the overload protection circuit. This has been mostly in older regulators - TO-3 style. A quick squirt of freeze spray will cause it to stop for a while. This "oscillation" can cause some very weird problems. Regards, David
Lieber Stefan, auch wenn es mich technisch längstens überfordert, ist es immer wieder faszinierend zu sehen, wie Du mit Sorgfalt, Struktur, Methodik und Deinem "magic finger" den Fehler so langsam aber sicher einkreist, ihn sichtbar werden lässt. Ich bin nicht so leicht zu beeindrucken aber das, was ich hier sehe, ist großes Kino ! Ganz herzlichen Dank. VG Jürgen
Ich hoffe nur, dass ich den Sch....fehler endlich finde. Sowas hatte ich noch nie!
Still on the edge of my seat...this reminds me of a FRG-7 (showed signs of a lightning strike) that I never did fix. Spent hours on it & I got everything "working", but it still didn't receive. But I didn't have your capability. Thanx for sharing & even doing it in english. Very kind of you.👍
Tnx
Stefan, I'm really excited to see what's coming in the next video.
73 de Bernd
Ich auch ...
@@dl7majstefan753😁👍
that's a nice defect, but now it's narrowed down just to a few parts. It should be easy to fix it.
Also hope so - keep your fingers crossed!