jasong
Music enthusiast
Looks like Mouser sells ESR meters, although about twice as expensive as the premade version from that other site.
pfontherun said:Mouser.com is still my preferred place (USA). Fistells is great too for Denver residents. Anyway, I too have a 2285B and you can find just about every cap in there I reckon on mouser with exception of the dual section 6800s. Find my post called, if I recall, "2285B recap." I had to replace both of mine with 4 singles. Original replacements are long gone I'm sad to say. Oh-- sometimes dimmer lights do really goofy things on stuff. Is your amp plugged into a circuit in your house with a dimmer light switch? Just a theory.
restorer-john said:... 'recapping' as you guys call it
restorer-john said:...
New capacitors are in my opinion pretty ordinary compared to some of the premium capacitors that the japanese used in the 70's and 80's
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restorer-john said:...
If you can find an Elna cerafine or a Nichicon Gold...good luck they are gone.
That's true to a certain point, but in my (limited) experience electrolytic capacitors by their very nature (they contain electrolyte which dries up) have an aging process that requires their replacement after some time.restorer-john said:...
because resistors, diodes, thermistors and especially transistors all develop problems
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Hi Jason,jasong said:Ooh hey I read a bunch of your threads. Very informative, thank you very much. If you can coach me a bit on selecting the proper caps, I'd hugely appreciate it.
Gigapod said:Hi Jason,
I am going to write about that in my Recapping HOWTO. I was wondering what kind of issues people would have when choosing replacement capacitors. :yes:
What kind of questions do you have?
jasong said:...
I'm seriously wanting to order 4 caps to replace the double cans, and 330 and 470 caps for the power board for starters. So a fundamental cap question is "how do I find the right one out of that haystack on mouser.com?" Assume I want to recap the whole P800 board plus the big guys.
Hey Jason,jasong said:And now after I opened it and wiggled C801 and C802 a little bit, it's humming again...if the hum doesn't go away I will be pretty certain that those caps have bad joints. It's not going away like it usually does...perhaps my slight wiggling of the caps fractured a fragile connection.
If anyone has any last minute tips or advice or cautions about touching up those joints, fire away soon. They're accessible from the top of the unit and should be easy little dabs to make.
OK, just checked their site, it seems they have a nice selection filter that will make it easy to get the list of capacitors you want.jasong said:Well, when I go to mouser and look at the selection,
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jasong said:...it's either wait to get some resin core solder or try some kind of miracle ...
Gigapod said:Jason,
I too would wait until tomorrow to get the resin core solder and a proper 30W soldering iron. Miracles are hard to come by these days.
pfontherun said:Oh wait wait wait! DO NOT wire the big 6800 caps in parallel. on the schematic they're done like (sorry for the ANSI) this: -ll--ll- aka series. There are 2 "inside" each therefore 4 total. Orientate the new ones so one (-) from one cap goes to one (+) of the other. Then repeat again for the other 2. You'll then have the mysterious 3rd lead which is where the 2 are joined. On the bottom of the originals this explains the "extra" leg.
jasong said:So I plugged it in, and it WORKS and sounds GREAT!