Those dang 1uF NP caps in the TS808...

[ACS]

Hey guys

Have spent the last hour or so abusing the search function and couldn't come up with a definitive answer to this:

What sort of cap should I be using in my TS808 clone where the 1uF NP/BP is specified?

Am building from the GGG schematic and am referring to C2 and C8.

* I can get an NP electro, but have read that they don't sound so flash.  Can we elaborate on that?
* I can also get a 'crossover' type cap, which just seems to be a 100V rated version of the above?
* I can get a Metallised Polypropylene which I'd also read would be a nice choice, but at $2.60 each, are they worth it??
* Final choice would be an MKT (is this the one that is commonly called a Film Cap?) in either 0.68uF or 1.5uF.  But not 1uF.  Would either of these be OK?

Thanks guys!
Aidan

[DougH]

You can get 1uf film caps fairly inexpensively. That's the route I would go. Look for the maroon "chiclet" caps in the 1uf size. I get them surplus for about 25 cents a piece. I'm sure Mouser et. al. have them.

[ACS]

Thanks Doug - I'm in Australia, so can't justify an order for just a couple of caps.  So that pretty much limits me to two rather ordinary stores, of which Jaycar (the links I posted) is the best...

The ones I posted are the best I could find.

Aidan

[wader2k]

I'd be interested in the answer to this also.....I just finished one based on the BYOC ckt bd and I got the wrong one.....so I used the NP electrolytic...I been wondering if the box caps made much difference....the ones I have are radial and don't fit the board....

[DougH]

Thanks Doug - I'm in Australia, so can't justify an order for just a couple of caps.  So that pretty much limits me to two rather ordinary stores, of which Jaycar (the links I posted) is the best...

The ones I posted are the best I could find.

Aidan

Check with smallbear. He might have them. I know he carries the maroon film caps but I don't know if he has 1uf's.

[liddokun]

Thanks Doug - I'm in Australia, so can't justify an order for just a couple of caps.  So that pretty much limits me to two rather ordinary stores, of which Jaycar (the links I posted) is the best...

The ones I posted are the best I could find.

Aidan

Check with smallbear. He might have them. I know he carries the maroon film caps but I don't know if he has 1uf's.

http://www.smallbearelec.com/Detail.bok?no=168

I know Steve's got box style 1uf NP caps. 

They look like the box like blue caps in this pic I got from Tonepad:

[Hanglow]

You can parallel two or three smaller values if  you don't have a 1u. eg  a 0.68 and a .33 or two .47's etc , just to get you close

[ACS]

Thanks guys

I know that Mouser, Smallbear etc do have the right stuff, but again, for something this small, I don't want to have to order from overseas.  So I'd want to source these locally (and immediately  )

So which of the options above is viable?

Aidan

[Govmnt_Lacky]

I have built several of GGGs TS-808 boards and I have always used the 1uF NP Aluminum Electrolytics. Link Below.  Good prices and they deliver quickly. Cheap too. I think you can get 10 or so for like $1.

http://www.effectsconnection.com/oscommerce/product_info.php?cPath=32&products_id=182

[Boogdish]

you could try using a tantalum cap.  I think I read that most of the world's tantalum is being mined out of Australia, so you'd be supporting a local industry.

[The French connection]

http://jaycar.com.au/productView.asp?ID=RG5170&CATID=&keywords=1+uF&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=

Dan

[MikeH]

The size/lead spacing of the box-type from small bear is perfect for the tonepad and GGG boards

[ACS]

http://jaycar.com.au/productView.asp?ID=RG5170&CATID=&keywords=1+uF&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=

Dan

Hey, that's cool!  I didn't realise they did a greencap in values that large...  might be a bit bulky for me tho - will have to check them out...

[ACS]

Well, I'll be d@mned...

Dick Smith have got em!

I didn't even consider seriously looking for them there - Dick Smith is our equivalent of Radio Shack.  Once mighty, now a shadow of their former self, selling GPS's, stereos, phones and a tiny array of components :-(

Thanks for all the help team!

Aidan

[bumblebee]

jaycar have 1uF box caps, little yellow ones. Acttualy, jaycar has a fair few cool parts, you should get one of their catalogs with part numbers in it, makes finding what you need easier.

[turkey101]

Don't forget Altronics.  The same item is available for half the price of Jaycar or DSE.

http://www.altronics.com.au/index.asp?area=item&id=R3037A

They have shops in Perth, Sydney, Melbourne and Adelaide (Aztronics).

------------
turkey101

[stobiepole]

Jaycar has 1uF MKT style grey film caps and 1uF tantalum caps...the tants are traditional in an 808, but the film probably sound better. There's a place called Wiltronics which is very good too - http://www.wiltronics.com.au/ - I occasionally buy a big pile of MKT caps from them. Very fast delivery.

Chris