Btw the set resistor seems to be an important component to ppm/temp variation wise. As I remember I used a very low ppm ww thingy there which helps to keep the idle voltage stable.
Rule #3 overrules every other rule as stated above.
Andrew. Take care of your ppm values 😉
Rule #3 overrules every other rule as stated above.
Andrew. Take care of your ppm values 😉
"We blamed sunstroke/dehydration for the incident. (yes, it can happen in Scotland!)"
A little wordgame on the subject on the temp coefficient discussion
Ah, my tempco changed when I became hydrated/dehydrated.
Now I can see that maybe I was not so far off topic.
Now I can see that maybe I was not so far off topic.
Exactly. I resisted (on topic) to enlengthen Salas joke in rule #3 to your experience of "90 minutes was missing from my life" to regular friday experiences though. I didnt want to marginalize yours🙂
As I need to relocate my boards to a better box I will investigate how to add more cooling and then test. As Stajo did with closed compartmens for different temperatures. 🙂
Regards
Just so Stajo. I'm thinking about one long cooler as the ones you have for the dcb1. It would as a bonus add stability. I'm also looking into a compartment for the 369'ers but it might be enough to shield the powerfets from the rest. Any problem using those long legs on the powerfets?
This is only in my mind for now so no pics yet 😀
Regards
One long sink and isolation pads would be easyest, tho I dont know how that would affect voltage stability since they all then will follow the same heating curve. Can be for the better or worse or no difference. Try it.
Didnt notice any problems with long legs and it would surprise me if 3-4 mm could make a difference there.
Didnt notice any problems with long legs and it would surprise me if 3-4 mm could make a difference there.
Well the hotrodded dcb1 uses the same sink either one per side or the bottom of the box where all 4 shares the same sink...
Yes, gotta try it 😀
Regards
It is good 😀
Amazed everytime I play a record thru the FSP... No words can really define it - must have been experienced! 🙂
Regards
Amazed everytime I play a record thru the FSP... No words can really define it - must have been experienced! 🙂
Regards
Well one moment would be quite natural - but every time? Addiction?
I better find a group helping me outta this as I can't withstand the music it provides 😀
Seriously - it is very good. I won't say it is the best as it would give problems of anykind. I'll just have to learn to live with it as I have experienced...
Regards
Stajo, does your boards hang on the powerfets legs at that end? Any other support?
Regards
Both the boards and the sinks has their own wooden support both under and over them on that side. On the other side its screw distances as seen on pic.
Yes, the 369'ers side was clear. So it lays on wood and is supported by wood on top. So no stress on the powerfets?
Regards