PC Board resistor

[Alonzo]

Getting along on my Smash build, my .27 ohm resistor reads .6 ohms (shorting my Fluke reads .1).  I put it in anyway assuming it was Ok but thought I'd ask since it's almost 50% out.  Will it make much of a difference in the filament voltage?

 

[Paul Birkeland]

It can be very, very, very hard to measure low resistances like that, even factoring in the meter lead resistance. 

What does your meter say when measuring the 0 Ohm resistor supplied?

 

[mcandmar]

My Fluke meter (175) has a resolution of .1ohm with an accuracy of ±(0.9% + 1) so a couple of ohms is the practical limit you can measure down to.

P.S. Never heard of a 0 ohm resistor before, whats that do for you?

 

[Paul Birkeland]

The 0 Ohm resistor just acts as an insulated jumper. 

 

[Alonzo]

The 0 ohm measures .1 ohm, which is my zero since I get .1 ohm shorted.

 

[Paul Birkeland]

Yeah, I wouldn't worry too much about it.  Oils from your fingers, oxides on the resistor leads, etc. are going to influence this low of a resistance reading.

If your voltage checks end up being off, let us know and we can revisit that resistor.

-PB

 

[Alonzo]

Ok, Great!