capacitor question on 49 rca

[David Roper]

They are not electrolytic. The polarity is marked to indicate the outside of the foil, which no longer matters.

Ignore it.

[leadlike]

The outside foil can be used as a shield against interference. Here is a lengthy page on the subject:

http://www.aikenamps.com/OutsideFoil.htm

As previously stated, this isn't anything to really worry about when putting in modern poly caps.

[Phil Nelson]

This article has advice about identifying and replacing capacitors, with photos showing the various types:

http://antiqueradio.org/recap.htm

As David noted, you can disregard the "foil end" stripe, and the value (as well as general appearance) tells us that is not an electrolytic.

Regards,

Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html