Capacitor Type Question

[Harry Muscle]

I'm building a temperature controller I found at
http://ourworld.compuserve.com/homepages/Bill_Bowden/page2.htm (scroll down
to the "Electronic Thermostat and Relay Circuit" heading) and since I still
don't fully comprehend everything about capacitors, could someone verify for
me what type of capacitor I should be using for the 22uF cap in that
circuit. I'm guessing aluminum electrolytic, but I'm not sure.

Thanks,
Harry

 

[Laurent Schmalen]

I'm building a temperature controller I found at
http://ourworld.compuserve.com/homepages/Bill_Bowden/page2.htm (scroll down
to the "Electronic Thermostat and Relay Circuit" heading) and since I still
don't fully comprehend everything about capacitors, could someone verify for
me what type of capacitor I should be using for the 22uF cap in that
circuit. I'm guessing aluminum electrolytic, but I'm not sure.

I would use a tantalium, but elolytic is okay too

 

[Harry Muscle]

I would use a tantalium, but elolytic is okay too

If I go with tantalium, do I still go with 22uF? Or does the different type
affect the value to use?

Thanks,
Harry

 

[Laurent Schmalen]

If I go with tantalium, do I still go with 22uF? Or does the different type
affect the value to use?

No, the value is still the same ... type doesn't matter

 

[John Popelish]

I'm building a temperature controller I found at
http://ourworld.compuserve.com/homepages/Bill_Bowden/page2.htm (scroll down
to the "Electronic Thermostat and Relay Circuit" heading) and since I still
don't fully comprehend everything about capacitors, could someone verify for
me what type of capacitor I should be using for the 22uF cap in that
circuit. I'm guessing aluminum electrolytic, but I'm not sure.

An aluminum electrolytic will do fine. Something in a 6.3 to 15 volt
rating would be quite small and cheap.