Im trying to fix a C-8 Electro cigarette machine from 1948 that was given to me. I believe that is has a bad resistor. The resistor has the foloowing info: Sprague KoolOhm 10kt-10w 135 (with an ohm symbol) From what I have gathered online the company no longer exists. Does anyone know where i can find some of these resistors, or know of a direct replacement for them?
Resistors are like tires. You don't need any special brand or color. The easiest thing to try is to pick up a 100 ohm 10 watt resistor from your local Radio Shack and give it a try. If by some chance they have something closer to 135 ohms, get that instead, but from their website, it looks like 100 ohms is the closest. http://www.radioshack.com/search/index.jsp?kwCatId=&kw=power%20resistor&origkw=power%20resistor&sr=1
WWW.Mouser.com , WWW.DIGKEY.COM . Either one will be able to help you. Sounds like you are looking for a 10K ohm 10 Watt resistor. A picture would help. Bill
Sprague (company that's gone out of business) KoolOhm's (product line) were best known for being low inductance wire wound power resistors. Any time you wind a wire, you can get inductance, that's how they make inductors. But this was a bad characteristic for resistors used in certain circuits since it could affect the tuning of the circuit. Could be that type of resistor was used in there cause it's low induction characteristic was important. Or just because those were good, relatively inexpensive power resistors, low inductance of no consequence in that particular circuit. Any vacuum tubes in there? I don't think it's a 10 kilo ohm resistor. Only high voltage circuits would have need of a 10k power resistor. And the ohm symbol is next to the 135. 10kt might be the form factor. Why do you think it's bad, did you ohm it? Burn marks? If you see any scorching, check for shorts. You could try a 100 ohm 10 watt resistor wired in series with a 35 ohm 10 watt resistor and see what happens. If you let the smoke out, then I'd probably be wrong and you did need a 10k ohm resistor.
