Treble bleed/Fizz/Ice Pick reduction Bypass Caps - What types do you blokes use

[brewdude]

As a snubber?

[ngw]

I’m a fan of LCR polystyrene for sub 1nF axial caps.

I use a lot of the LCR polystyrene caps also and I like them, but I would prefer something cheaper for snubbers, which is why I posted this topic.

[pdf64]

For any application in a valve amp where a sub 1nF cap is called for.

[ngw]

Anyone have any comments on using ceramic caps for snubbers, instead of film/foil/mica caps?
I don’t have dog ears and I can’t hear any difference.

[T Wilcox]

If I use ceramics I use the C0G/NPO version for reasons explained in the following link
https://www.allaboutcircuits.com/techni ... tor-types/

Lately I've been using WIMA FKP2 1000V(Polypropylene film caps) for caps in the 33-100pF range 5mm lead spacing and FKP3 for100-6800pF range 7.5mm lead spacing but the sizes are limited so if I need something specific like 20pF I will either use micas or C0G ceramics

https://www.mouser.com/datasheet/2/440/ ... 2-9257.pdf
https://www.mouser.com/datasheet/2/440/ ... 139941.pdf
WIMA as audio caps https://www.wima.de/wp-content/uploads/ ... -Audio.pdf

As far as sound I have had great results with WIMA's but they are radial and have short leads ( I solder on leads if not using a PCB sometimes )
some of the pF range WIMA's do have longer leads though
look at pricing for 10 and more if considering these

Pic attached of rackmount preamp with WIMA's used on eyelet board

[ngw]

If I use ceramics I use the C0G/NPO version for reasons explained in the following link
https://www.allaboutcircuits.com/techni ... tor-types/

Lately I've been using WIMA FKP2 1000V(Polypropylene film caps) for caps in the 33-100pF range 5mm lead spacing and FKP3 for100-6800pF range 7.5mm lead spacing but the sizes are limited so if I need something specific like 20pF I will either use micas or C0G ceramics

As far as sound I have had great results with WIMA's but they are radial and have short leads ( I solder on leads if not using a PCB sometimes )
some of the pF range WIMA's do have longer leads though.

Thanks for that article; nice and short and to the point.
I have always used C0G/NP0 ceramics, in preference to the other types.
I also use WIMA caps quite often and also extend the leads.

I may not bother to try disc ceramics for snubbers and keep using what I always have.