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In Reply to: RE: What capacitors to buy to refurbish old RCA amp? posted by maxhifi on February 10, 2016 at 07:40:21
The Soviet surplus K40 PIOs are hermetically sealed. Shelf life is a non-issue.
Under the Red Regime, the citizenry got a very raw deal. OTOH, nothing was too good for the military.
Tube DIYers reap tremendous benefits from the collapse of Communism.
Eli D.
Follow Ups:
I ordered ten k40y-9 0,1uf 400V capacitors for the 0.1's, and two 0.5uf 1000V KBG-MN bathtub paper in oils for the 0.5uf capacitors.
They have the look I want and are exactly the value of originals. Not overly expensive either.
Now the two electrolytics. Mallory seems to have discontinued US production and sprague atoms are not available in a lot of values. Decisions, decisions
Only good thing is they are hard to kill. Otherwise overpriced and don't sound very good. Elna, Nichon, Panasonic....all very much better choices (IMHO).
I mostly agree with Russ - but there are some occasions where the Atom is helpful in achieving a certain tone. And they are axial, and there aren't a lot of axial caps around anymore.
What do you think of the old standby Philips/BC components/Vishay capacitors?
The axial ones with the translucent blue plastic insulation, which have looked the same since the late 60s.
Jim should of had that:)
They make a 105C axial rated to 450VDC and the 85C ones are rated to 500VDC.
When it comes to aluminum electrolytics (which I try to avoid) I'd much rather have newer designs.....so I wouldn't use the old Phillips ones myself. Heck these days you can get high voltage, small size, non-electrolytics.
Do you "really" have to have axial? You can always add a terminal strip, etc.
IIRC, Mallory is made in Mexico.
Look to Japanese Panasonic and Nichicon. If it must be U.S., look to CDE.
Eli D.
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