[Boatanchors] SB101 squeal

[Glen Zook]

The cathode bypass being contained in a multi-section electrolytic "can" is very common.  Often there will be 2, or 3, sections with a voltage rating like 350 VDC or 450 VDC and then a section with like a 25 VDC or 50 VDC rating.  The lower voltage capacitor is almost always used as a bypass capacitor and not as a filter capacitor. 

Glen, K9STH 
Website: http://k9sth.net

      From: Dale Parfitt <parinc1 at frontier.com>
 To: 'Glen Zook' <gzook at yahoo.com>; 'RAY FRIESS' <rayfrijr at msn.com>; boatanchors at puck.nether.net 
 Sent: Sunday, July 8, 2018 3:23 PM
 Subject: RE: [Boatanchors] SB101 squeal
   
Hi Glenn et al,
Also on the Drake 2B (and likely the 2A). I seem to recall in those instances the cathode bypass cap is contained in a multisection electrolytic can. The other sections are used in the P.S. filtering.