Marconi 2022 Again !! - UK Vintage Radio Repair and Restoration Discussion Forum

Wendymott · 29th May 2018, 10:58 pm

HI peeps. This time, no or low RF output above 250 Mhz.
IC10, OM345 the culprit, I was fortunate to have a spare MMIC module in stock, if you have one of these generators, it pays to have one or two modules in the "bin", only took an hour from start to finish. the hard part is getting the solder out of the plated through holes, after removal of the offending device with a hot air gun.
Its quite strange that my old" Clunker" 2022 that I bought for parts is more reliable than the 2022E MOD spec one.

MrBungle · 29th May 2018, 11:28 pm

I think that’s a Marconi feature. Beat up junk Marconi kit seems to work better. At least it didn’t explode like my pristine 2019A did. Damn 5v reg went short and took out everything digital in it.

29th May 2018, 10:58 pm	#1
Wendymott Octode Join Date: Jun 2013 Location: Huddersfield, West Yorkshire, UK. Posts: 1,795	Marconi 2022 Again !! HI peeps. This time, no or low RF output above 250 Mhz. IC10, OM345 the culprit, I was fortunate to have a spare MMIC module in stock, if you have one of these generators, it pays to have one or two modules in the "bin", only took an hour from start to finish. the hard part is getting the solder out of the plated through holes, after removal of the offending device with a hot air gun. Its quite strange that my old" Clunker" 2022 that I bought for parts is more reliable than the 2022E MOD spec one. __________________ Should get out more. Regards Wendy G8BZY

29th May 2018, 11:28 pm	#2
MrBungle Dekatron Join Date: Jun 2016 Location: London, UK. Posts: 3,687	Re: Marconi 2022 Again !! I think that’s a Marconi feature. Beat up junk Marconi kit seems to work better. At least it didn’t explode like my pristine 2019A did. Damn 5v reg went short and took out everything digital in it.