Sir Mark34 . . . . . . .
Wel l l l l . . . . . I'll just throw in my . . . . năm đồng . . . . . as per :
" I am almost sure its correct . "
Well then . . . . . just explain, to us, the power loop flow of the oscillator transistor ?
I will rework the units schematic with all of its needed info, but with need of just a bit of fill in from you on the questions that are being posed . . . . just below.
PLUS that mystery 2k resistor will get included . . . no extra charge !
CONFIRM . . . . these already givens:
The feedback / resistor at the base of the oscillator transistor is a 510 ohm unit.
The oscillator transistor is a SS8850 . . . . which is being a
-40VDC ---1.5A----1 Watt PNP transistor
The battery pack is 6VDC . . .I viewed that holder which is the same as one that I use, but mine holds 8 cells. I readily use it with two double clipped jumper leads to string up as many cells as I plug into it, and then I can
easily tap in at 1.5 through 12 volt levels.
The SCR is a BTA16-800B . . . which is being a
800VDC ---16A---50 ma gate Triac WITH built in snubber circuitry.
NOW give info on the number on the central HV rectifier diode .
PLUS the number on the diode that you left floating, with the extraction of the units right 2K series resistor . . . being just below it.
CONSULTING MY POST 18 BLOW UP Drawing:
(Repeated just below:
Resistance measurements are needed from:
The very BOTTOM terminal of your right GREEN terminal block . . .which is your circuits common ground buss .
. . .TO . . . .
1 . . . The centrally located HV rectifier diodes left lead.
2 . . .The very BOTTOM terminal of your left GREEN terminal block
3 . . . The second terminal UP of your left GREEN terminal block
EXPECTATIONS:
Measurement 1 will have the very greatest ohmmmage, while the other two will be significantly less.
" You guys are disappointing me, no one had the idea to remove the right side 2k resistor. "
" I am a novice in electronic circuits. "
No idea involved at all . . . . just behaving the proven quantum physics of cause and effects and long time accrued KNOWLEDGE . . . . . now we ask you.
Were you well positioned on the center of an intermediate mattress barrier and . . .considering the greater odds of you being right handed . . .using a sacrificial left arm to reach around the left side of the mattress to hold down the YELLOW switch ?.
Then, you would need to make timely checks on the panel meter, for its displayed charged voltage level.
BUT do so ONLY after a delay of the release of the YELLOW switch, for at least a full 10 seconds and then ONLY for a very quick peek.
Alternatively, you could have used a 7 metre light wooden pole to press that yellow pushbutton, but you are then chancing yourself when coming up close enough to read the meter.
The same shortfall . . . being outstanding . . . . if remoting the YELLOW switch wiring to an adjacent room behind its door.
Will prep your schematics rework . . . . just after getting those needed data confirmations.
73's de Edd