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Filament Resistor replacement
elfiself
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#1

11-23-2018, 12:45 PM
Half of a 33-3408-3 filament resistor is bad and I'm looking to replace the whole component. It is a 40/80 ohm. what wattage value would be appropriate?
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Radioroslyn
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#2

11-23-2018, 01:41 PM
Actual dissipation is abt 3W BUT if you don't want a flaming hot resistor go w/abt X3= 7-10W.
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morzh
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#3

11-23-2018, 02:35 PM
For power resistors I triple the ating, so for 3W it is 10W for me.
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elfiself
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#4

11-23-2018, 03:51 PM
Thanks Terry. The math works out to 2.4W X3 Looks like 10W should cover it.
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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration