Where can I buy a few PRECISION Capacitors?

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Where can I buy a few PRECISION Capacitors?

Now you guys cant say there have been no posts here since December 2016.

The schematic for this (1960's era) Eico 950b capacitor tester calls for
a 2 mfd, .02 mfd, and .002 mfd, they must be PRECISION caps to make this
thing accurate to test the caps being tested on it.

It seems that resistors are rated at 1% or better, but not caps....

Thanks

[Peter Wieck]

On Friday, February 17, 2017 at 6:53:32 AM UTC-5, wrote:
> Where can I buy a few PRECISION Capacitors?
>=20
> Now you guys cant say there have been no posts here since December 2016.
>=20
> The schematic for this (1960's era) Eico 950b capacitor tester calls for
> a 2 mfd, .02 mfd, and .002 mfd, they must be PRECISION caps to make this
> thing accurate to test the caps being tested on it.
>=20
> It seems that resistors are rated at 1% or better, but not caps....
>=20
> Thanks

There are precision capacitors - and the likes of Mouser, Allied & Digikey =
all stock them - just use the screening tool.=20

At the same time, your garden-variety Fluke meter will measure a cap +/-1% =
- so purchase half-a-dozen of a given value, and screen for the precise val=
ue you need. Generally when it comes to low-value 600V plastic caps these d=
ays, they are far more precise off-the-shelf than anything not hand-screene=
d in the 60s. I check _EVERY_ cap before I install it - and seldom have I f=
ound a modern-production cap off its printed value by more than 5%, and mos=
t of them fall within the 1%.=20

I keep all the values you need - it would be the work of a few moments to s=
creen out a bunch for you.=20

Peter Wieck
Melrose Park, PA