r 9 resistor
Posted: Tue Aug 24, 2004 9:40 pmr-9 res. is on back order at mouser. the value is 2 watt/30k.
can i sub. a 5watt /30k. it is larger but it can be made to fit.
can i sub. a 5watt /30k. it is larger but it can be made to fit.
Hi All,
Definitely. You can always substitute a resistor with higher dissipation for one of lower dissipation, as long as you can shoehorn it into the physical space involved. Now, if you want to start talking about the sonic characteristics of carbon composition, carbon film, metal film, metal oxide and wirewound resistors, that's another subject--one I don't care to get involved with.
In general, capacitors with higher voltage ratings and resistors with higher dissipation ratings than those specified for a circuit are acceptable as long as they fit physically. The only exception I can think of is NOS electrolytic caps, which tend not to "form", or exhibit their rated capacitance, if operated at voltages substantially below their rating. New electrolytics don't have this problem, but you should use caps close to the voltage specified in the circuit parts list for both price and size considerations.