Replacements for polyethylene capacitors?

[Rod Beauvex]

I'm in the process of ordering parts to work on a Pioneer SX-82. In addition to Mylars, micas, and stirols, the MPX section has some 'polyethylene' capacitors, which no one seems to sell or make anymore. What would be a suitable replacement type? Ceramics? Polyesters? Some other type?

Also, in the event of an exact value not being available, should I go to the next higher or lower in capacitance?

[SY]

I seriously doubt the capacitors are actually polyethylene- it's FAR too thermally wimpy for that service. They were probably polyester (polyethylene terephthalate).

[Salas]

There is a nice one, cheap but biggie, called K75-10 its paper and polyethylene terephthalate, Russian made. Green and big, if it fits, its very high value for money IMHO. You can chase it on Ebay.

[Rod Beauvex]

The service manual refers to them as polyethelyne. Oddly, it refers to Mylars as mMylar, the trade name, (which I was under the impression that Mylar was polyester)

Edit: Misread your post, SY.

Salas, thanks for the tip, but I'm after new production components only.

[Salas]

Mylar is a Dupont trademark for polyester film. Just polyethylene are the shopping plastic bags.

[SY]

The service manual refers to them as polyethelyne.

The service manual might be mistaken- it's pretty common, since polymers are not part of the EE curriculum.:

Mylar is the trademark for Dupont polyethylene terephthalate (PET). If a cap is made from any other brand, it can't be called Mylar, even if it's chemically the same. So if the caps came from two different manufacturers...