Quote:
Originally Posted by kenbarbdae
I've got a Magnavox similar to the Trapezoid but in a portable suitcase. It has an amplifier number 8001-10. I'm in the process of recapping the amp and ran across a component that I'm unsure of. I believe it may be Wima cap. It is in an orange flat pack, two leads with a W and 22 stamped on it. Anyone know if it is a cap and is the value in uf or pf? I'll try to attach a picture of it.
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It
could be a capacitor, but on the other hand it could also be an encapsulated component combination unit, also known as a couplate. I have a Zenith radio with two components that appear similar to what you describe, one for the stereo FM decoder and the other for another function that escapes me at the moment. However, since the flat pack component in your Magnavox amp has only two leads, I'm hesitant to even guess what it is. I have never seen a capacitor in a squarish flat package--round, yes, but never square. The W and 22 may be value markings, but I'm not sure.
If there is a little diagram taped or pasted onto the underside of the chassis, your mystery component is probably a couplate.
Note: Ooops. I just read Tom Bavis's post, in which he described the component you're seeing as possibly being a wirewound resistor, very possibly a fusible resistor. If it's in the power supply, it may very well be a fusible "sand resistor" (another name for a fusible, probably named that because of its sandy appearance), designed to open in a hurry under a severe current overload. Many series-string televisions of the 1950s had these; I remember my folks' second TV having a 33-ohm sand resistor in the power supply, near the selenium rectifiers. My Zenith MJ1035 stereo FM radio has a 33-ohm fusible in its power supply, only that one is much smaller than most sand resistors and is enclosed in a ceramic tube. Seeing all the sand on the component shown in your attached thumbnail almost convinces me as well that the thing is probably a wirewound fuse resistor.