Are These Wattage Ratings Right?

[CryingDragon]

???

 

[Steve Eddy]

???

Look fine to me. If anything, some verge a bit toward overkill (the 10 watter in the output network for example). But no one ever smoked a resistor because it could handle too much power.

se

 

[CryingDragon]

Thanks

 

[Peter Daniel]

The output network resistor can be 3W.

 

[CryingDragon]

So aside from the output network are most of them the right size (or in toher words as small as they can safely be) because i wana use as close to the right value as possable but i don't wana go too low.

 

[Peter Daniel]

I don't know about this particular circuit, but usually if the resistor is not used to reduce the voltage, 0.25 or 0.5 W is enough. Anyway, if you notice that it gets too hot you can always replace it with a bigger one.

 

[CryingDragon]

ok thanks for the info.

 

[peranders]

The feedback resistors (1k2 and 56k) can be 0.25W or 0.6 W metal film.

 

[Circlotron]

The 4R7 output resistor only needs to be big if you are going to run full power 20 kHz sinewaves on the bench, or maybe for some non-audio application. For normal music a 1 watt should be just fine, use carbon not wirewound which are sometimes inductive and would therefore defeat the purpose.

GP.

 

[peranders]

For this particular resistor you can also use a couple of 0.6 W metal film, 2-4 pcs. Easier if you have a couple of 22-47 ohms.