UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Herald1360 · 13th Feb 2017, 4:12 pm

The reservoir is two 8u 450v in series with 100k across each. Max surge voltage could be 600v or so so modern 10u 400v types would be OK for this location. The rest of the filtering uses 450V rated caps.

Don't forget that the midpoint needs to be insulated from chassis if using metal can types!

Hmm, ripple current may be a problem with small modern aluminium caps. You might be better to use polypropylene film types.

13th Feb 2017, 4:12 pm	#140
Herald1360 Dekatron Join Date: Feb 2007 Location: Leominster, Herefordshire, UK. Posts: 16,535	Re: Restore a Beau Decca The reservoir is two 8u 450v in series with 100k across each. Max surge voltage could be 600v or so so modern 10u 400v types would be OK for this location. The rest of the filtering uses 450V rated caps. Don't forget that the midpoint needs to be insulated from chassis if using metal can types! Hmm, ripple current may be a problem with small modern aluminium caps. You might be better to use polypropylene film types. __________________ ....__________ ....\|____\|\|__\|__\_____ .=.\| _---\__\|__\|_---_\|. .........O..Chris....O Last edited by Herald1360; 13th Feb 2017 at 4:24 pm.