[bill knox]

Hi Zoomer

Probably the most difficult item is, as previously mentioned, the wiring, definitely not for the faint hearted.

The next item is the capacitors in what I call "cigar tubes" there 6-7 mounted in various positions around the chassis, all are fairly easy to get to apart from the one mounted directly behind the frequency changer, these capacitor tubes have 3 capacitors mounted inside sealed in with black pitch, I find these quite easy, first I cut the wires then undo the large nut and remove the tube from the receiver, look carefully at the tube at the end where the wires come out of the tube there is an indentation that goes around the tube and the metal is peened over the end of the can, with a small pair of wire cutters, such as a pair of Linstrom cutters gently start going around the edge of the can unsealing the end cap, when the cap is removed you can see the pitch inside, this is where you need to be a little careful, you will need a hair dryer or heat gun to melt the pitch, "DO NOT GET IT ON YOUR CLOTHES OR SKIN THE PITCH IS VERY HOT", If you have a vice secure the wires in the vice and when the pitch has suitably melted holding the can in a piece of rag pull the can away from the capacitor innards, try to get as much of the pitch from inside the tube as you can.

The new .1uf can be bought from EBay or Farnell or you may have some other supplier in mind, the working voltage of the old capacitors is 250 Volts working but the new capacitors the working voltage is 630 volts working so the rating of the capacitors is far better that the old ones, you should be able mount 2 of the 3 capacitors side by side, wrap the mounting wires of 2 of the capacitors around each other at one end only then as three capacitors will not fit side by side I get the 3rd capacitor and put some heat shrink sleeving on it and wind the end with the sleeving on with the other 2 capacitors and solder the ends together and lay the 3rd capacitor below the other 2, what you should have now is 3 capacitors joined at one end and at the other end 3 wires with nothing on them, on the 3 open ends of the capacitors solder a piece of red wire to each open approx. 150mm long end at the other end where the three capacitors are joined together solder a piece black wire on, again 150mm long, now push the 4 wires through where the original wires came out and push the mounting piece back down until it fits back from where it came from, with a small tack hammer gent repeen the metal back of the tube over the the mounting bush until the tube metal is over the mounting bush, if done carefully when mounted back in the receiver nobody can see what you have done.

The above job is a must as if one of the original capacitors goes S/C and they do, it burns out the feed resistors to the circuits that they work to and the only way forward is to split open the IF transformer to change the resistors inside the IF transformers, and then you still have job to do with changing the capacitor, the job also maintains the original look look of the receiver

The 2 capacitor tubes that are mounted between the 2 DF valves that are most likely to have been removed are not used if you are not going to reinstate the DF equipment so do those first do not bother to refit them and after you have done those you can get on with doing other jobs on the set but as other forum members have pointed out WATCH THE WIRING
Good luck with your efforts.

Again as other members have said the book made by Peter Holtham is a must and a good read, but as he lives in Australia the postage is high but worth getting, you can sometimes find the book on EBay but not very often.

Regards

Bill