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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

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Old 9th Feb 2021, 7:28 pm   #1
deliverance
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Default Marconi CR100

Hi all. I am currently working on my CR100 and having changed numerous caps including the the multi value can I have come across a problem with C88 and C87 in the manual it states they are electrolytic but there are no markings on them stating they are . I know that normally 25uf are electrolytic I just want to make sure . The markings on the caps says Dubilier type 4001 any guidance would be appreciated thanks Chris.
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Old 9th Feb 2021, 7:32 pm   #2
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Default Re: Marconi CR100

25uF will be an electrolytic and replaced these day by a 22uF.
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Old 9th Feb 2021, 9:09 pm   #3
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Default Re: Marconi CR100

Thanks for the info I have ordered them.
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Old 9th Feb 2021, 9:30 pm   #4
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Default Re: Marconi CR100

Great stuff, I used to own all 3 models way back. Cr100/150/300.
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Old 10th Feb 2021, 1:23 am   #5
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Default Re: Marconi CR100

I have a cr100 I’m fully recapping and rewiring.
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Old 10th Feb 2021, 8:59 am   #6
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Default Re: Marconi CR100

Yes same here but some of the wiring has been replaced previously . All the metal caps have a date of 1952 as has the name plate .
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Old 11th Feb 2021, 1:33 am   #7
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Default Re: Marconi CR100

One of mine was last changed 1944!
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