Now here are some OLD Nippon Chemi-con's...

[dood]

Found these suckers in my 1970's vintage Marantz 2220b receiver. The other boards in this thing have all Chemi-con's of smaller varieties as well.



Still going strong, and they're WAY older than I am!

[kc8adu]

Re: Now here are some OLD Nippon Chemi-con's...

just fixed up a 2270b for a friend.
most caps in the signal path were dried out.
replaced with panasonic fc as i keep them on hand.
the large caps were ok.
not a bit of hum at full volume with no signal.
his kids got the bpc this unit displaced.

[japlytic]

Re: Now here are some OLD Nippon Chemi-con's...

I fixed a Sharp AM/FM tuner (early 80s) for a friend a few months ago. The fault was very weak reception on the AM band, even though the FM band was OK. Replacing the electrolytic capacitors in the AM section had little effect; it was later found that a 455kHz filter was defective. Replacing it fixed this problem.
In the amplifier unit I was given that came with the tuner, it had two large Nippon Chemi-Con capactors in it, which were still good.

This goes to show that a lot of older audio equipment is better built and well worth repairing (even by a college student who has experience in electronics!)

[Topcat]

Re: Now here are some OLD Nippon Chemi-con's...

Marantz!!

I recognize that any day!! Those were the cat's meow back in their day! As old as it is, it'll still pump out the wattage.

[arneson]

Re: Now here are some OLD Nippon Chemi-con's...

Those Nippons are bolted on like the header pipes on my bike.

[hkivan]

Re: Now here are some OLD Nippon Chemi-con's...

This goes to show that a lot of older audio equipment is better built and well worth repairing (even by a college student who has experience in electronics!)

I totally agree.

My Onkyo pro-logic AV amp was brought in 1995 with over 3000HKD.
It sounds sweet & still runs very well today. It has two bulky " ELNA for audio, 56v 8200uF" as input cap and some well-know caps, e.g. NCC, panasonic...

I brought a Marantz SR4500 last year with about 2600 HKD.
I dont find any first tier brands caps inside. I found " made in china "
on the rare. OK, I don't think "made in china" is necessarily poor.
It sounds quite good but I think it will have shorter life span.
It may not last as long as my onkyo. I don't know if it is worthy to upgrade the caps ?

[zcraigs]

Re: Now here are some OLD Nippon Chemi-con's...

Greetings-

I just bought this same unit Marantz 2220b.
I was told that it was cleaned and serviced (what ever that means)
It works very good but... the only flaw I can find is that when turned up too loud, it makes a crack high pitched noise.I don't get this if I listen to it at a moderate level, but If I want to 'rock out' and request some volume from the unit, this is when I get the occasional noise. the unit has these same caps.
Are these the culprits, and if not any advice?

peace
css

[Krankshaft]

Re: Now here are some OLD Nippon Chemi-con's...

Are those Violet caps Pannys?

I had to replace some of those in an old 1982 GE line operated clock radio.

No stamped vents was that for safety ?