Hello All
I just picked up a nice specimen of a Marantz model 26 stereo receiver for a good price since it needed work. I have already fixed what was wrong with it but I thought I would ask this question to some of the more experienced techs out there.
What I would like to know is if there are any capacitors that should be replaced due to their age, as this amplifier is bearing down on 50 years old. I will list the brands and types of caps in case anybody wants to know that.
-Nippon Chemi-con, Nichicon, and Elna : Aluminum Electrolytic (I have always worked under the assumption that these are good brands).
-Mallory: Aluminum Electrolytic
-Matsushita (the triangle logo?): Aluminum electrolytic as well as some plastic purple ones labeled as electrolytic.
-Unknown brand : polyester type
-Unknown brand : Ceramic (I generally assume that these don't go bad)
-unknown brand : mylar type (the flat green ones)
I would love to hear you peoples opinions on cap brands and types, as well as my assumptions stated in parentheses. I know capacitors is a common topic so I hope I am not beating dead horse here, but hopefully I will learn something new!
The below pictures are of the various boards and should show all the different types of caps.