Electronics > Projects, Designs, and Technical Stuff
Yet another resistance decade box
krivx:
--- Quote from: Back2Volts on August 04, 2016, 03:25:40 am ---
--- Quote from: ez24 on August 03, 2016, 10:58:56 pm ---... I thought maybe I could wire up external caps and make a cap decade box BUT it is a BCD switch. ...
--- End quote ---
There are at least two variants of the switches I know of, BCD and (straight) decimal. Just because I was looking for different colors ones I ended up ordering some decimal and some BCD.
--- End quote ---
I have a feeling that the BCD and decimal switches are mechanically the same, only the PCBs are different.
Look at the pattern of traces for this BCD switch:
Fortran:
Yes they are the same switch.
As I mentioned earlier, I bought both and only the pcb differs.
ez24:
Fortran - there was some talk of decade capacitor boards, any new news?
Again thank you, I am learning how to solder SMDs
ez24:
Here is a completed switch on ebay, I think using a big switch:
http://www.ebay.com/itm/Seven-decade-resistance-box-0-1-0-ohm-to-9-999999-Mohm-resistor-substitution-/152192192192?hash=item236f5c8ec0:g:stEAAOSwaB5Xjkud
I wonder if by a member.
Edit - there are more sellers than this one
Fortran:
ez24: Well I've had my hands full with these boards and a coffee monitoring system for work. :)
I'm not even sure if I'll ever get time to make them, but since I want some for myself it might happen eventually.
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