0.05 Cap

[Lifer]

Just ordering parts for my circuit, but can't find .05 caps anywhere. I don't know enough to substitute so can anyone recommend something to use instead or know where I can get one?

Thanks again!

[Toasted]

This should help: 0.5uF = 500nF = 500000pF

I have hundreds of 0.5 uf caps. If you can't find one let me know what [b]voltage[/b] and what [b]type[/b] you need and I'll bob a couple in the post to you FOC.

[bremen]

[quote name='Toasted' post='307678' date='Oct 16 2008, 10:10 AM']This should help: 0.5uF = 500nF = 500000pF

I have hundreds of 0.5 uf caps. If you can't find one let me know what [b]voltage[/b] and what [b]type[/b] you need and I'll bob a couple in the post to you FOC.[/quote]

Lifer was asking for 0.05 = 50nF.

What's the circuit? 50nF isn't a standard value nowadays. 47nF will usually be close enough; if not, get two 100nF and wire them in series.

[Toasted]

Reading fail

Yes, just use 47nF.

Edited October 16, 2008 by Toasted

[Lifer]

[quote name='bremen' post='307715' date='Oct 16 2008, 10:53 AM']Lifer was asking for 0.05 = 50nF.

What's the circuit? 50nF isn't a standard value nowadays. 47nF will usually be close enough; if not, get two 100nF and wire them in series.[/quote]




I got the .05 from the seymour duncan website, and the 0.047 was recommended in my 'wiring question' thread.

So I could just wire [url="http://www.wdmusic.co.uk/product/Sprague_%27Orange_Drop%27_0.1_Capacitor_.1CAP-OD"]two of these[/url] up in series?

And thanks for the freebie offer toasted!

[Hamster]

[quote name='Lifer' post='307750' date='Oct 16 2008, 11:28 AM']So I could just wire [url="http://www.wdmusic.co.uk/product/Sprague_%27Orange_Drop%27_0.1_Capacitor_.1CAP-OD"]two of these[/url] up in series?[/quote]

Yes you can, but the difference in value between .05 and .047 is so small you'll never hear any difference - but if someone comes and checks your circuits with a capacitance tester you'll be very red-faced

[Lifer]

tbh I'd probably just stare blankly at them!

What would you suggest, just running a 0.047 on both tone pots? This is making me go a bit cross eyed now

[~tl]

[quote name='Lifer' post='307792' date='Oct 16 2008, 12:29 PM']What would you suggest, just running a 0.047 on both tone pots? This is making me go a bit cross eyed now [/quote]
Not according to your diagram, since it's 0.0047µF (4.7nF) capacitor on the bass control. The treble control should be fine with a 0.047µF (47nF) capacitor, since as people have already said, the difference between 47 and 50nF is marginal.

[Lifer]

:wacko:

Okay I'm gonna have to ask someone to tell me exactly what caps I need on the bass pot and the treble pot, because it's getting me even more confused now, ignore the values in the diagram because I drew that!

Thankyouplease

[Thunderhead]

Not only is the difference between .047uF and .05uF inaudible, it's also within the 'tolerance' (allowed variation from the intended value) of normal capacitors, which is +/- 10% (or even +/- 20% with some types). So in fact a particular .05uF in the lower part of its tolerance range could even be a smaller true value than a .047uF in the upper part of its range.

In other words, it doesn't matter! It's effectively the same value. You will have difficulty finding .05uF these days anyway, since .047 is the modern 'prefered' value. (There is a technical reason why such an apparently odd number is chosen, which is also to do with tolerances and the overlap between one value and the next.)

So you need:

Treble pot: 0.047uF
Bass pot: 0.0047uF

This 10:1 size difference is important, or one of the controls won't do much - don't use the same value for both!

It doesn't matter what type, and there is no minimum voltage rating requirement (50V is plenty, and is the smallest normal value for non-electrolytic caps). Ceramic, polyester, mylar, mica, polypropylene etc all will work fine.

Edited October 16, 2008 by Thunderhead

[Lifer]

Thank you so much, I can stop crying in the corner now!

EDIT:

After some searching:

[url="http://uk.farnell.com/jsp/search/productdetail.jsp?sku=1200402"]http://uk.farnell.com/jsp/search/productde...jsp?sku=1200402[/url]
[url="http://uk.farnell.com/jsp/search/productdetail.jsp?sku=1200400"]http://uk.farnell.com/jsp/search/productde...jsp?sku=1200400[/url]

Edited October 17, 2008 by Lifer