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sparkymike · 5th Apr 2020, 10:26 am

OPT is out now. The windings UV and WV cannot be reversed as the centre tap is buried in the other windings. The centre tap for XY and YZ have both ends of the windings going to the turret Y, so they can be reversed if needed.

The transformer needed to come out as it was not potted and also one of the four fixing bolts would not locate with the tapped block in the can, so only choice there was to elongate the hole in the chassis slightly with the trusty Dremel drill and burr. I need to take photos of the core now from various angles before any wires are moved.

Mike

5th Apr 2020, 10:26 am	#122
sparkymike Octode Join Date: Dec 2006 Location: Colchester, Essex, UK. Posts: 1,076	Re: Quad 11 test run OPT is out now. The windings UV and WV cannot be reversed as the centre tap is buried in the other windings. The centre tap for XY and YZ have both ends of the windings going to the turret Y, so they can be reversed if needed. The transformer needed to come out as it was not potted and also one of the four fixing bolts would not locate with the tapped block in the can, so only choice there was to elongate the hole in the chassis slightly with the trusty Dremel drill and burr. I need to take photos of the core now from various angles before any wires are moved. Mike