Cut control cap type

[iknowjohnny]

Does it matter at all? I'm using a .002uf mica, but i was wondering if the cut is at all sensitive to cap type like some other areas of the circuit are. I don't have anything close to that range other than the mic and I don't want to order a cap and pay $6 shipping to find out so i thought i'd ask. I think i know the answer but can't hurt to ask.

[Synchu]

I've run few different types of caps - polyprop, polyester and PIO for a cut control in a Dumble Small Special (sort of) build.
It didn't make any significant difference to me (whatever minor there was should be attributed more to caps tolerances than the type of construction, I think).

[mhartman]

I've used both mallory and orange drops and don't hear much of a difference between the two.

[Leo_Gnardo]

Go with whatcha got. "Cut" is a treble throwaway much like the standard tone controls in a guitar. You could put in a $60 bumblebee and pretend you hear the difference. I've used OD's & Mallory 150's - they work fine and I'm sure your mica will too.

[surfsup]

Thinking about this, the only signal left above the cut frequency that is not "cut" -3db will be the difference between the original signal on one leg of the PI vs the distorted signal passed through the cap (distorted by the cap/tubeimbalance and any phase shift from the cap) because the opposite waveforms will be summed to zero.

Compared to the original signal strength you won't/shouldn't hear this.

[rsi]

Technically, regarding temperature stability, leakage, tolerance, etc., mica caps are better than most other cap types. If the value is right, then i would use it. I have a couple mica caps on the 6 position rotary tone switch on my 18W EF86 amp.

[iknowjohnny]

Thanks all, i figured as much but wanted 2 b sure.