Weller WS 50 resistor value

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RenatoBR

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weller ws50

Hi all,

I have a soldering iron with PTC 50R and I'd like to build a controll unit for it.
I saw the schematic regulator_lr21 weller on this page:



Some doubts: there is no value for resistor between IC1b and IC1a and there are two words on the schematic that is impossible to read, one word near the 78L05 and other one near the led.
Does anybody can help me, please?

Rgds

Renato
 

weller ws 50

Dear friend, instead of posting your problem here i suggest you to post it in the same page where you gave the link. may be the author of the schematic may reply to your querry. Good luck
 

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