Hi.
I wonder if anyone out there has experience with the Marconi 2022?
Mine works fine apart from the internal modulation frequency which is about 1.5% low on all three (400Hz, 1Khz & 5Khz) settings. I don’t think there is an adjustment for it, so it must be a fault.
I would really appreciate any thoughts about where to look – I am assuming around IC36/a, C71/C72.
I spent ages trying to fix a radio with a poor SINAD only to find it was because the 2022 1K modulation was low, causing my SINAD meter to read too high!