Total recall 2.2uf

[darrenw6000]

The 2.2uf bipolar cap in this build, is that just a 2.2uf film or a special cap?

[alanp]

If it's specced specifically as bipolar, then it's probably a bipolar electrolytic (most electro's are polarised.)

This would have been used in place of a film cap for physical size reasons.

[darrenw6000]

I have got a small 2u2 film cap by wima. Couldn't I use this for this project or does it need to be electrolytic.

[davent]

Should be fine as long as you can fit it to the PCB.

dave

[Scruffie]

It just has to not have a polarity so not a straight up electroyltic or tantalum.

There's also the option of tying the negative lead of 2 x 4.7uF Electro caps together and putting the positive lead of each in to the pads as it was on the original DMM.

[darrenw6000]

Ok

[Orbis_Ignis]

I just used two 1uF film caps in parallel to get as close to 2.2uF as I could get. I picked the ones I found that were the largest values. I think I ended up with 2.1+uF

[darrenw6000]

ok. what about the trimmer positions, i am useless at getting them right, where are yours set?