Quote:
Originally Posted by bandersen
I was just thinking that since 0.47 ohms is such a low value it's almost the same as a short. Perhaps you could measure the current draw and use a fuse slightly higher ?
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If memory serves, that resistor is in the emitter leg of the transistor, analogous to a tube's cathode resistor, is it not? As such, its ohmic value would be critical (in conjunction with the bias pot) in setting the transistor's operating point. And it served a dual purpose as a fuse. We used to stock them in .33, .47, and .56 ohm to cover the various iterations of those hybrid radios, 'cause the resistor has to be replaced with the correct value.