IvIark wrote:What would everyone else like to see used for the values listed?
Bear in mind that we can sub in different values, so that we aren't killing ourselves trying to get different dialectrics, and then being able to sort and spec to get matching sets.
If we concentrate on just one or two sizes, I think that we'll be fine. In the case of the Overdriver, I think that we could sufficiently use just 100nF and 1uF, which are readily available in ceramics, electros, tantalums, and all sorts of film caps.
Then it comes down to which values we are willing to modify. For instance:
- The pair of 220nF caps could be reduced to 100nF
- The pair of 4.7uF caps could be reduced to 1uF
- Most 10uF/22uF/25uF/caps could be reduced to 1uF as well
Remember - the pedal doesn't have to sound awesome. Film caps in 4.7uF and larger? And enough to match to spec? How large can we get ceramics in? I know that monolithics will take you up to 220nF or so. But much beyond 1uF? And electros or tants in 10nF?
I'm not saying that we can't find them, but it could be harder than we need to make it.
I think that we should stick to the following dialectrics:
- ceramic (probably monolithic, available in lots of sizes, cheap enough to match to spec)
- electro (cheap, lots of sizes down to about 100nF or so)
- film of whatever type the pcb will accomodate, since some 1uF films can get large. Poly box caps or similar would be an obvious good choice, as they are compact and pretty easy to match to spec (as opposed to greenies and such - tolerances all over the place)
I guess that tants could be subbed for electros, if we can find enough of them to match at the sizes we need.
I really don't see the need to switch out every single cap in the circuit. IMO, concentrating on a few coming off the collectors on the trannies would probably be sufficient, and also maybe one or two feeding into the bases.
We really need to whittle this down, or we could drive ourselves nuts.