11-17-2016, 08:24 PM
Well plates then. Anyway, measure the current.
You vould start with measuring the voltage between the centertap and the end that you know will open. Compare with the other end voltage. The centertap is tied to the Rect Neg. (B).
The voltages across the half-windings should be the same and be practically zero volts. Wait till you have that volume fluctuating and see if one of them changes. Use two DMMs.
Any significant positive voltage relative to centertap should be regarded as bad.
Once confirmed, or you can go straight to it, insert milluammeter between the suspect winding end and the grid. See if the positive (from grid being positive and winding neg) current exists. If yes, remove the tube, see if it stops.
Lasy: see what resistance is of the section 1-2 of the vitreous resistor 25. As long as you are at it, check the whole resistor, all sections.
You vould start with measuring the voltage between the centertap and the end that you know will open. Compare with the other end voltage. The centertap is tied to the Rect Neg. (B).
The voltages across the half-windings should be the same and be practically zero volts. Wait till you have that volume fluctuating and see if one of them changes. Use two DMMs.
Any significant positive voltage relative to centertap should be regarded as bad.
Once confirmed, or you can go straight to it, insert milluammeter between the suspect winding end and the grid. See if the positive (from grid being positive and winding neg) current exists. If yes, remove the tube, see if it stops.
Lasy: see what resistance is of the section 1-2 of the vitreous resistor 25. As long as you are at it, check the whole resistor, all sections.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
