14-02-2022, 02:50 PM
Hi.
Didn't do much with this over the weekend but have spent a couple of hours today. Found a few way out of tolerance resistors and a couple of further capacitors. I've also replaced the 20L1 and U281 with NOS valves a PL38 is on order. There is still some line linearity issues but the result is a lot better with full width now. The LOPT has been replaced at some point and it has an oscillator feedback winding, T1 should be removed but it hasn't, my next job.
Didn't do much with this over the weekend but have spent a couple of hours today. Found a few way out of tolerance resistors and a couple of further capacitors. I've also replaced the 20L1 and U281 with NOS valves a PL38 is on order. There is still some line linearity issues but the result is a lot better with full width now. The LOPT has been replaced at some point and it has an oscillator feedback winding, T1 should be removed but it hasn't, my next job.
