I took a triac out of circuit to measure it, and followed this guide, http://www.tonyvanroon.com/oldwebsite/gadgets/triactst.htm, the 1st section
My DMM output on resistance is high on the red lead, so I follow the guide, get 93 Ohms both ways, then without touching any metal myself, I get to step 8b and get 93 Ohm again ?? Not OL ?
Here's the triac out of my hotair station, everything else checks out so far, yet it started cutting out for the 1st time the other day.
http://download.maritex.com.pl/pdfs/sc/BTA16-600B.pdf
So I built this Triac/thyristor tester, and I swear I soldered it right, and the LED and diodes are right, visually, mentally, verbally, and not a zener symbol, etc. I built it basically like the actual schematic looks, not the other pic.
http://translate.google.com/transla...ectronica.net/thyristor_and_triac_tester.html
Yet when I jumpered the left switch SW2, the RED LED went on, and if I jumpered the right side- SW3, the GREEN went on, which is the opposite of the Spanish as far as I can tell. And I checked everything too many times, went away for a while, etc.
Then just now I turned it on with SW2 jumpered 1st, IDK if that matters. I'm only using 19Vpp@60Hz from a SDG2042X. They are 600V rated triac's. They both started flickering, and then they both stayed on. So is it fried or what ?
I have other Triac's somewhere, I better compare them. Oh and with my component tester, see if it can read them, IDR.
The 1 thing i haven't done yet, is try the whole 858d station with the isolation trans, and variac. It might start again. The control board works alone, the heater element reads 15ohm or 30ohms, (IDR). The fan still runs.
My DMM output on resistance is high on the red lead, so I follow the guide, get 93 Ohms both ways, then without touching any metal myself, I get to step 8b and get 93 Ohm again ?? Not OL ?
Here's the triac out of my hotair station, everything else checks out so far, yet it started cutting out for the 1st time the other day.
http://download.maritex.com.pl/pdfs/sc/BTA16-600B.pdf
So I built this Triac/thyristor tester, and I swear I soldered it right, and the LED and diodes are right, visually, mentally, verbally, and not a zener symbol, etc. I built it basically like the actual schematic looks, not the other pic.
http://translate.google.com/transla...ectronica.net/thyristor_and_triac_tester.html
Yet when I jumpered the left switch SW2, the RED LED went on, and if I jumpered the right side- SW3, the GREEN went on, which is the opposite of the Spanish as far as I can tell. And I checked everything too many times, went away for a while, etc.
Then just now I turned it on with SW2 jumpered 1st, IDK if that matters. I'm only using 19Vpp@60Hz from a SDG2042X. They are 600V rated triac's. They both started flickering, and then they both stayed on. So is it fried or what ?
I have other Triac's somewhere, I better compare them. Oh and with my component tester, see if it can read them, IDR.
The 1 thing i haven't done yet, is try the whole 858d station with the isolation trans, and variac. It might start again. The control board works alone, the heater element reads 15ohm or 30ohms, (IDR). The fan still runs.
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