I want to make up a small ring light to go around the barrel of a microscope that I bought some time back. Commercially there is nothing quite small enough so I went on to deal extreme and bought some of these LED's (at $4 for 2 it seemed a good buy - http://ift.tt/1VQmwaw)
P1030175 (Medium).JPG
(The background is a 5mm grid btw).
They are listed as a 12V input. Now my electron taming abilities are probably rated as basic*, so I need some help at this point. The plan was to cut off the push-in tag where the step is and glue the remaining piece to a piece of vero-board or similar so I had 6 or 8 of these in a ring (connections would be via wire rather than tracks). Provided that everything is connected in parallel, can I just supply with 12V and be done with it? I assume that the small block marked 301 is nothing more sinister than a resistor; is it worth taking that off (or necessary even) and just having one larger valued one? 12V is the operating voltage in a car but it does not matter much to me in the shed - a plug pack is a plug pack so am I better off configuring it to run at 9V or ???
Michael
*I did have a tech teacher look at some of my electronics efforts once and describe it as "rough as guts". I'm sure that all the ex tech teachers we have here would confirm that was teacher code for "brilliant job but could be a little neater in just one or two places".
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P1030175 (Medium).JPG
(The background is a 5mm grid btw).
They are listed as a 12V input. Now my electron taming abilities are probably rated as basic*, so I need some help at this point. The plan was to cut off the push-in tag where the step is and glue the remaining piece to a piece of vero-board or similar so I had 6 or 8 of these in a ring (connections would be via wire rather than tracks). Provided that everything is connected in parallel, can I just supply with 12V and be done with it? I assume that the small block marked 301 is nothing more sinister than a resistor; is it worth taking that off (or necessary even) and just having one larger valued one? 12V is the operating voltage in a car but it does not matter much to me in the shed - a plug pack is a plug pack so am I better off configuring it to run at 9V or ???
Michael
*I did have a tech teacher look at some of my electronics efforts once and describe it as "rough as guts". I'm sure that all the ex tech teachers we have here would confirm that was teacher code for "brilliant job but could be a little neater in just one or two places".
Attached Images
P1030175 (Medium).JPG (38.9 KB)
Read the full thread at metalworkforums.com...
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