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onewatt · 27th Mar 2016, 1:58 pm

This one has the same options as well so who knows, it too, may have been from the same place.
Regarding the caps in the supply, those in the primary circuit are only 250v rating and look as if some have already been replaced so I'm going to blitz the caps and replace all.
The line in circuit has around 300v at the primary side of the Tx so I'm going to fit some better rated caps, but could do with some assistance with the ESR.
Having looked at Farnell, there's a lot of options to choose from, so I wondered if its possible to suggest a ballpark ESR value that should do the job? Secondary V's are 5, 12, 24vdc and the rating again looks a bit tight on the caps.
Am I right in assuming that the ESR on the secondary side can be the same as the primary?
Thanks all,
Chris

27th Mar 2016, 1:58 pm	#9
onewatt Hexode Join Date: Jun 2005 Location: Buntingford, Hertfordshire, UK. Posts: 362	Re: Marconi 2024 SGen SMPS faulty This one has the same options as well so who knows, it too, may have been from the same place. Regarding the caps in the supply, those in the primary circuit are only 250v rating and look as if some have already been replaced so I'm going to blitz the caps and replace all. The line in circuit has around 300v at the primary side of the Tx so I'm going to fit some better rated caps, but could do with some assistance with the ESR. Having looked at Farnell, there's a lot of options to choose from, so I wondered if its possible to suggest a ballpark ESR value that should do the job? Secondary V's are 5, 12, 24vdc and the rating again looks a bit tight on the caps. Am I right in assuming that the ESR on the secondary side can be the same as the primary? Thanks all, Chris __________________ BVWS, VMARS, RSGB, DEHS, RAOTA Nothings too big or too heavy, otherwise it wouldn't be where it is!