11-05-2019, 07:58 PM
Got a snap of the trim today, then the camera battery died and it needs a battery to download to the computer. Rats!
Did a full alignment and everything peaked as it should, the first IF is very peaky, second is wider in tune.
Its working really well now, the HT has come up to 228V so the capacitors must have reformed, can is still stone cold. Stations throughout the medium wave, 4 or 5 audible on long wave with some also on the short wave bands, listened to the cricket on Radio 4.
Its been on all afternoon, no more squeaks or whistles now it has a decent screened iF valve. Strangely with a noisy peeling EF39 the output valve motorboats even with the grid top cap off, it must upset the HT line.
After rewinding the transformer to exactly the same as original I found I had to reverse the feedback winding, it must of been incorrectly connected before and the extra output transformer must have done the reversal.
Cleaned and lubed all the bits on the chassis, I'll put it aside now and get on with the cabinet, stripper, bleach and oil to see what it looks like.
If its too bad it will be grain filler, undercoat and paint.
Could we have a pole on what colour would look best? I favour Oxford blue or darker.
Did a full alignment and everything peaked as it should, the first IF is very peaky, second is wider in tune.
Its working really well now, the HT has come up to 228V so the capacitors must have reformed, can is still stone cold. Stations throughout the medium wave, 4 or 5 audible on long wave with some also on the short wave bands, listened to the cricket on Radio 4.
Its been on all afternoon, no more squeaks or whistles now it has a decent screened iF valve. Strangely with a noisy peeling EF39 the output valve motorboats even with the grid top cap off, it must upset the HT line.
After rewinding the transformer to exactly the same as original I found I had to reverse the feedback winding, it must of been incorrectly connected before and the extra output transformer must have done the reversal.
Cleaned and lubed all the bits on the chassis, I'll put it aside now and get on with the cabinet, stripper, bleach and oil to see what it looks like.
If its too bad it will be grain filler, undercoat and paint.
Could we have a pole on what colour would look best? I favour Oxford blue or darker.
Boater Sam.
