UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Bufo Bill · 11th Dec 2021, 7:50 pm

Hi, progress has been made. I measured all the pins on J1 that seemed relevant, counting correctly now, and all was fine. I had cleaned and cleaned the contacts and switches, and gave it another shot. Bill's mixture gave me a sort of ghost of what should be there, and another scrub revealed a nice image at last. I must have spent a full quarter hour polishing!
So, excitement over, we turn to the calibrator again. As I said, the rails measured fine; the +15V was +15v and -100.3V for the other in question. So we still have 125.5mV and 5V on the calibrators.
Thanks for sticking with me, this is so much fun, hope you are not too bored by it all.
Many thanks from Bill.

11th Dec 2021, 7:50 pm	#17
Bufo Bill Heptode Join Date: Jan 2016 Location: Wolverhampton, West Midlands, UK. Posts: 777	Re: HP 182T: Scope plugin friendly? Hi, progress has been made. I measured all the pins on J1 that seemed relevant, counting correctly now, and all was fine. I had cleaned and cleaned the contacts and switches, and gave it another shot. Bill's mixture gave me a sort of ghost of what should be there, and another scrub revealed a nice image at last. I must have spent a full quarter hour polishing! So, excitement over, we turn to the calibrator again. As I said, the rails measured fine; the +15V was +15v and -100.3V for the other in question. So we still have 125.5mV and 5V on the calibrators. Thanks for sticking with me, this is so much fun, hope you are not too bored by it all. Many thanks from Bill.