Well, I have been told why it stopped working: he plugged in a 12v 35w bulb (not 120v) and it smoked it instantly of course, but i don't know what else it hosed. The potentiometer is working fine after being disassembled and cleaned, but the rest of the circuit is still defunct. Am ordering all...
Well, now that i have removed all the components from the board, I find that it IS that diac/triac circuit I linked earlier, except with a resistor not in place (the board has a spot for it, and some of the values are different)
Triac bt134 600e
Diac db3 c502
The capacitor only has 333J and...
well, after more poking and prodding, it does seem to be the pot is shot. not getting any kind of proportional reading from the center to either wiper contact or between either of those on bottom and the wipers or center. Boss's suggestion was also "shotgun"
Gonna guess that the DB3 Diac isn't...
Good grief.....a million ways to do the same thing!
Attached is the layout of what I have here. The potentiometer I'm not sure how to represent correctly. there are 2 terminals on bottom and 3 from the edge. The edge center and "high" side are used along with the 2 bottom. Sorry for the...
The dimmer is part of a much more expensive light fixture that I'm trying to fix for my boss. I'd be fine with buying a replacement dimmer if i could find one similarly small (.75 x 1.375") and adequate for a single 120v 35w halogen bulb is all it runs.
The diac symbol looks close (on...
Working on fixing a small 120v dimmer, and it has a fairly simple circuit, but there's a component I've never seen before.
I think it's some form of diode, but the symbol is like 2 diodes facing each other, IE ->|<- and the part is labeled "DB3"
I need to know how i'd check this component...
"answers to process problems are best solved by examining the process on the plant floor rather than discussing them. "
And therein lies the fundamental problem with production being on the diametrical opposite side of the globe. We barely get any information about how they make our part...
the plating is because in the application the roller bears a 1.4mm nylon cord running over it, and in our application that cord cannot be appreciably discolored through its useful lifespan. Early prototypes I created used SS but cost prohibited its use for production. It was decided this was...
Much appreciated all, well, most. We have solved the problem. The early production showed problems, but the latest samples have been exceptional in this aspect, as an improperly setup tool was found and corrected. Not sure how much of that can be attributed to a Chinese subcontractor to a...
@BobM3, we considered it, but it was decided against (over my head)
@MikeHalloran:
d.A refers to the axis of the part.
note 1 applies to the entire part (this surface being the surface of the plating)
@KENAT
We are locked into this supplier, although I think they are contracting this part...
I am the part designer, not manufacturer. I have a very simple cylindrical part, with particular importance to the inner and outer surfaces. It is basically a sleeve bearing. Our manufacturer is, for some unknown reason, having trouble meeting the requirement for the surface finish of the ID...
For us, an ECN is Engineering Change Notice, letting the other departments know (and suppliers through the chain of command) know that there has been a change to a print. We discussed ECR/ECO's, which would be where another department requests, or Eng. Mgr. orders a change to be made. We shortly...
We don't do ECO's, only ECN's. The revision process for us is often such a dynamic thing that an ECO would have to be generated after the revision was complete, basicly becoming a verbose explanation of the concise text on the rev block of the print.
We don't currently have a policy of...
Well, the example of MM works for us I think,
EX-001-00 (base release)
EX-001-00 A (Revision)
EX-001-00 B.1 (first check of new rev B on it's way to release) And stored in a different subordinate location to where the released revisions are.
We're trying to go 100% ditigal, scanning the...
As a result of the wonderful forced transition to ISO, we're trying to find information on methods used to track print checks. When we make new prints or revise prints, we run through a fairly simple cross check. Each engineer/draftsman (we all do both here) passes their prints off to another in...
I have hardware experience, from the standpoint of building fixtures and test equipment. In the past, we've been able to do these things through PLC's, because we haven't needed data collection on the way this project does.
We have a programmer here who is exceptionally talented, but isn't...
I have 2 tensile gauges, who's controllers will accept text through the serial port (rs232 f.w.i.w) and can be requested to send their peak readings, and then requested to re-zero themselves. I've been communicating with them from the computer remotely through hyperterminal. Now I need to be...
Well, I'd thought that my loss by having the solar inside the glass would be less than with the transferring, but then I considered that the position of the window could cost me even more. If that window, for instance, is under a long eve or a porch, in the north of the house, etc, places that...
I've been struck with the tinkerer's curse.
I am working on an idea to transfer power from a small bank of solar cells outside, through a window, and to a small battery pack/charger on the inside.
I only have conceptual ideas how to go about this. I don't even really know where to start...
