resistor value

[aaronbassett]

i have just poped r1 and r2 and rv1 on my pcb could some 1 tell me the resistor value for them please pcb is a mig05-01 welder is a cosmo 150 thanks

 

[rtbcomp]

Have you still got the old ones? They may have the value printed on them or as a series of coloured bars. Sometimes values are screenprinted on the PCB.

 

[aaronbassett]

r1 and r2 are burnt beyond reconition just wondered if ne one knows the value for them

 

[aaronbassett]

am i right by saying
R1 red,brown,black,gold 21 ohm +- 5%
R2 brown,orange,black,gold 13 ohm +- 5%

or have i got the colours wrong

 

[Omniata]

Gold or silver should come last as thats the tollerance...

Think you've got the values pretty much spot on...

Edit: There ok!! Got mixed up between 4 and 5 band resistors
Gold the tolerance not the multiplier, sorry...

 

[eddie49]

Yes, those would be the correct colour bands.

 

[aaronbassett]

thanks for your help just need to find were to get the 1k 438m pot

 

[aaronbassett]

r1 and r2 are burnt beyond reconition just wondered if ne one knows the value for them

R1 red,red,black,gold 22 ohm +- 5%
R2 orange,orange,black,gold 33 ohm +- 5%
R3 brown,black,red,gold 1000 ohm +- 5%
R4 green,blue,brown,gold 560 ohm +- 5%
R5 orange,white,red,gold 3900 ohm +-5%
Q1 tip35c
Pot1 2k2a
Rv1 1k 438m

i think that these are the correct values could some one look inside there welder and see if r1 and r2 are right please thanks

 

[martinez]

is rv1 log or lin ? best be sure eh

 

[aaronbassett]

how could i tell