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Need help with variable high powered heating element using SSRview story

http://forum.allaboutcircuits.com – Hey guys I have been trying to build a controller to vary a heating element for boiling my beer mash tun. I keep running into issues. 1st issue was finding something that had no Rf interference. So I decided to go with a burst fire SSR. Second was I wanted ease of use so instead of PID I went with a resistive style SSR and a potentiometer. Heres where I am at. (Embedded)

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unable to post with JPG imageview story

http://forum.allaboutcircuits.com – This site seems to be having issues (Embedded)

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Transistors and switchesview story

http://forum.allaboutcircuits.com – This really isn't a homework question, but more of a side project and I'm stuck. I know I need transistors maybe a timer? but I can't really wrap my head around it. (Embedded)

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Why do caps blow? ie, swellview story

http://forum.allaboutcircuits.com – Hi, this seems like a common enough problem in diagnosing a faulty board, in my case an lcd tv's power supply board. But my question is general, what causes caps to blow or swell up, can we make a list of any possible reason is appreciate! Thanks! (Embedded)

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RUNNING LINEAR ACTUATOR without feed backview story

http://forum.allaboutcircuits.com – Dear all. Here i am trying to do simple algorithm.I wanna formula to calculate actual position in algorithm Desired angle calculation: desired angle=-0.00227272727273x + 102.272727273 where x= (3600*hour)+(minute*60) actual angle:actual actuator stroke is 600mm ,3.2mm/sec speed ,0.192mm/min. I wanted to run actuator from morning 7 AM to 18PM. (Embedded)

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12 led chaser with fading effect PIC16F628Aview story

http://forum.allaboutcircuits.com – Dear all i have following code for 16f628a but all leds fade together andgetting on together no running action with fade. request corrct my code. and i also need to connect porta for 4 leds to make 12 led chaser. (Embedded)

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Treadmill stopped workingview story

http://forum.allaboutcircuits.com – I was pushing my nordic trac treadmill away from the wall while it was plugged in but not on. A spark came from the front where the power cord meets the motor and now it won't turn on. (Embedded)

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Faulty board from an electric heaterview story

http://forum.allaboutcircuits.com – Hi, please see attached picture. This came from my electric heater. The lcd display doesn't come on. The 110VAC is available and goes into the board you see and out to another board to convert to 5 and 12 vdc which gets wired back to the mainboard in picture. So I see the 5 and 12vdc and 110vac available on the mainboard, but the lcd doesn't light up and the nothing is ON. (Embedded)

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How to drive relays?view story

http://forum.allaboutcircuits.com – Hello guys, I am quite newbie in electronic and more or less self-taught in this area. (Embedded)

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I almost caused serious injury to myselfview story

http://forum.allaboutcircuits.com – This just happened about 5 minutes ago. I had just bought a pair of 72 watt bulbs and one of them would not work. So, I looked at the contacts on the '3 bulb tree' (you know, one of those lightstands that has 3 adjustable mini lamp shades) and the one in the middle seemed to be recessed in compared to the other two. This is where my carelessness came into play. (Embedded)