UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Marconi 2022 2955 OM345 OM360 Replacement

Wendymott · 10th Dec 2013, 10:39 pm

Hi Guys.......... Just to add my two "pennyworth" "old saying from pre decimalisation". Today I successfully fitted a MIMMIC MAR01 in place of IC9, this is a preamp for a Phase locked loop.......I made a mini pcb ......... see attached......
I Checked the full operating frequency range and output levels with my spectrum analyser and it seems ok to me. It has been on test all day, without any grumbles. Now it may not be a "Cure all", but in location IC9 it seems to do the job.
Regards
Wendy Mott G8BZY

10th Dec 2013, 10:39 pm	#25
Wendymott Octode Join Date: Jun 2013 Location: Huddersfield, West Yorkshire, UK. Posts: 1,795	Re: Marconi 2022 2955 OM345 OM360 Replacement Hi Guys.......... Just to add my two "pennyworth" "old saying from pre decimalisation". Today I successfully fitted a MIMMIC MAR01 in place of IC9, this is a preamp for a Phase locked loop.......I made a mini pcb ......... see attached...... I Checked the full operating frequency range and output levels with my spectrum analyser and it seems ok to me. It has been on test all day, without any grumbles. Now it may not be a "Cure all", but in location IC9 it seems to do the job. Regards Wendy Mott G8BZY Attached Thumbnails