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I will clean the pots one way or the other. This power supply has the option to be externally controlled with a 0-10v source. For now I am in no hurry, The fun part is learning how anyway. ok, guys has anyone done this: use optical rotary encoders to control a digital to alalog source...

Because all of my power supplies are used, 70s-2000s You read my mind, what would be the best way to clean them? Is there any good way to? If not I Am willing to replace the pots with better ones if they are any out there. any suggestions?

What is your background? Are you a electronics engineer? what is your comfort level in electronics? can you take a breadboard and design and build using only spec sheets and no computer aid. It is hard for me to know if you are biased toward analog or to digital. I am very new here. I...

Thanks I only use linear power supplies for my lab, I have over 20 different supplies I think it is a addiction and cant help myself I just cant stop buying broken american made ones and fixing them. Yea, HP has designed some lemons. So I need to test the supplies overshoot, I will and...

if this is for a pointer then size is the priority. I use thermal conductive tape for my builds with 2-56 or 0-80 screws to keep the board, or high wattage leds on, to remove the board use alcohol to loosen the tape the board will fall off. As for my designs glue for me is a no no for high...

Have you thought of adding suitable mounting holes so you can screw the board to a heat sink? or at least one mounting hole for the smallest PCB. If I were to design a PCB I would make the area around the mounting holes wide and be sure to keep any active traces at a good distance from any...

I am looking for advise, I'm thinking of using only my HP E3614a power supply to power a 445nm 1w diode for first light. I thought that I should use the HP because it has a ten turn current adj pot. Is this suitable to slowly up the current and not spike the diode? Or do you guys...

I think I know what you are asking, Is it that you dont want two posts in a row from one person? Instead, That I just add to the previous post so that there is just one. I guess this to keep the posts numbers to a minimum so the threads are not so long? I apologize, If I seem a bit slow...

As for ESD All worktables are aluminum connected to a 1 meg resistor in series to mains earth ground , also as I can afford them adding 8 foot rubber ESD mats to cover the aluminum, Just as the Siemens workstations were built. I chuckle everything I think of how every repair shop I...

I also thought of electrifying the problem areas somehow. I was thinking maybe a ozone generator to gas them? Ozone may do more harm than good.

At first I thought you meant A CO2 laser. I cant get to all of nests, It would much easier if I could reach the buggers, Too high up, also the telescopes will be in the middle, directly underneath permanently mounted on a 20 inch dia concrete pier. I cant even get a pole high enough and not...

I hope that I can share some interesting ideas with everyone. I am not into being cool, and never was, I was a sience nut in HS everybody thought I was a loner, In a small rual county school system there was really not many people with similar interests, Most were into overpowered cars...

Thanks For the reply, It has been a long road over the years. I too first used metcal wile working, for me it was at Siemens , For a young person with my interests, being a QC trainee as my first ever Job I was all over that factory I had to learn a lot of it I will never forget that...

I wont do a hit and run here. I have been in the other forums for over 10 years, Now I have almost finished the interior of my lab. I went from 4 foot work area, now I have 18 feet of work table space. and a few more tables in the works. I am looking into a laminar flow station, for a clean...

One of the projects I will look into is a laser for dealing with the wasps that start to nest up high, 16 foot up from the floor, in my observatory dome, I cant use chemicals which can ruin some very expensive telescope optics.

I joined this forum partly because the astronomy forums cloudynights and astromart do not allow discussions of laser pointers.....well, lasers in general really. I understand and respect their policy and the reason for it. However it did leave a gap for those using lasers. For example...

I am currently researching safety glasses. I will have them on before any diode is powered on for any reason. I will be building a blue laser first, A 445 1w diode, I know,guys well that is the diode that I have now also I dont have all the materials. and I wont be running the diode...

Jon here, HI, from the mountains of east TN. I am middle aged Guy with many interests. Active Amateur astronomer for 18 yrs, Telescope designer and Maker. Active Amateur machinist for 14 yrs. kind of a necessity for me. oh, almost forgot also Electronics hobbyist for 27 yrs, Always loved...