Peto Scott TV169 Restoration.

[Murphyv310]

Hi.
My friend has just sent me a good article to read which I am sharing here.
http://technischmuseum.nl/devices/Philip...X701A.html

I'll be draining the can tomorrow and hopefully open it and trace what has failed.

[LENINGRAD T2]

Hi Trevor,

I found something like this.

   
   

[Murphyv310]

Thanks Adam for the info.
The capacitors are wired in series to give the overall values in the list.
There is a little conflict though, one article states the caps are reliable but elsewhere I have heard they do break down. I'll be replacing them though.

[Murphyv310]

Hi.
Just ordered suitable capacitors from RS. I was fortunate to get the last of the ones I require, they will no longer be stocked. The other source would be China with ETA of late October.
£25 though from RS.

[Murphyv310]

This video is well worth watching.
This unit in fact is oscillating with just 1 volt yes 1 volt HT!!!!
https://youtu.be/ZYBm_h-tJ60

[peter scott]

Well done getting the can open and good progress on getting it running.

Peter

[Jac Janssen]

Making good progress Trevor!

Which capacitors are you going to use?

Jac

[Murphyv310]

I've ordered 2200 pf 10kv which I'll parallel with 300pf 10kv.
For the other I have a 4700pf 10kv coming with again a 300pf in parallel.
All Vishay.

[Freya]

Enjoyed the video, great job with the can.

[Jac Janssen]

I've ordered 2200 pf 10kv which I'll parallel with 300pf 10kv.
For the other I have a 4700pf 10kv coming with again a 300pf in parallel.
All Vishay.

Yes it pays to have a reliable brand.

2200 pF is good enough on it's own.



Please note that 10 kV might be a bit low, since 2 capacitors in series get 25 kV.



Jac