Electronics > Beginners
capacitor value tolerance in Kit Radio Pixie 40m cw qrp
vinlove:
I am building Pixie 40m CW QRP kit from eBay. This kit was bought about 3-4 year ago, but was left in the drawer, and had been forgotten all this time.
I found it a few days ago while clearing out, and I thought will have a go building it.
I soldered all the resistors on the board, and now its time to put on the capacitors.
The capacitor value for C1, C10 on the paper is 0.1uF (104).
But when I checked them with my DMM, their value is 65 pF. I would think it is 0.065uF? which is about 35-40% off from the spec.?
Are these within the usable tolerance, or these caps have gone off?
Thanks.
floobydust:
Check your build, post a schematic or something
vinlove:
On my sheet, both C1 and C10 is 0.1 uF (104).
PA0PBZ:
Both C1 and C10 are not critical, 0.1u (or 100n) would be fine in the schematic floobydust posted. But get your units correct: 65p is 0.065n = 0.000065u
My guess is that you are not measuring correctly, can you post a picture of the caps?
vinlove:
--- Quote from: PA0PBZ on July 20, 2019, 09:43:29 am ---Both C1 and C10 are not critical, 0.1u (or 100n) would be fine in the schematic floobydust posted. But get your units correct: 65p is 0.065n = 0.000065u
My guess is that you are not measuring correctly, can you post a picture of the caps?
--- End quote ---
I was using 3x different DMMs for the measurement, and they all showed same figures, but I think I wrote wrong on my OP. It must be 65nP, not pF.
I will check it again and update later.
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