View Single Post
Old 28th Feb 2006, 9:46 pm   #4
Station X
Moderator
 
Station X's Avatar
 
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,192
Default Re: DAC90A. No Longwave.

The capacitor concerned was one of those dipped in wax rather than one with a hard outer coating as is common today. I think that the leads are attached to the plates by a riveted on solder tag. I wondered whether this had perhaps corroded, but made contact again when moved/heated during fault finding.

The set is still working fine on LW, but I had to put an additional capacitor of 27pF I think in parallel with the 515 pF to get the calibration right on LW. I decided not to replace the 515 pF with an increased value capacitor, as I want to see if it fails again. I'll know where to look first if LW fails again.
__________________
Graham. Forum Moderator

Reach for your meter before you reach for your soldering iron.
Station X is offline