23-08-2017, 10:19 AM
(This post was last modified: 23-08-2017, 10:24 AM by ppppenguin.)
Tried the better of the 2 LTB boards. Nothing. Dead. No power from regulator and it drags down one of the 30V rails via the diode on the junction block. I'll probably pull out that diode as well as L6 on the LTB and run it up on an external PSU. Then I can decide whether it's the regulator or the LTB itself. Taking this sort of cautious approach to minimise risk of killing any other parts. Probably not necessary but I don't have lead lined undies
The photo is all the caps I have replaced. About 65 of them which is almost all the small aluminium electrolytics, all the bead tantalums and a few high voltage mixed dielectric. The 1n 1kV caps on the convergence board were replaced with some 1n class Y which fit quite nicely. The 47n 1.25kV was trickier. I settled on a 1.6kV part in the RS catalogue. It doesn't fit nicely but it will do. All of these caps are related to the 1st anode supplies. Repalced the smaller value tants with polyester - they fit very neatly. In all other cases the new electrolytic is smaller than the old and fits easily.
What is people's experience of the tripler? I remember them back in the 1970s as being a in a white case with white silicone potting. The one on this set may well be a replacement. It has a clear plastic case with clear silicone.
The photo is all the caps I have replaced. About 65 of them which is almost all the small aluminium electrolytics, all the bead tantalums and a few high voltage mixed dielectric. The 1n 1kV caps on the convergence board were replaced with some 1n class Y which fit quite nicely. The 47n 1.25kV was trickier. I settled on a 1.6kV part in the RS catalogue. It doesn't fit nicely but it will do. All of these caps are related to the 1st anode supplies. Repalced the smaller value tants with polyester - they fit very neatly. In all other cases the new electrolytic is smaller than the old and fits easily.
What is people's experience of the tripler? I remember them back in the 1970s as being a in a white case with white silicone potting. The one on this set may well be a replacement. It has a clear plastic case with clear silicone.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
