digraph wrote:The BOM calls out 2x 8pin dip sockets - optionally. However I think you could use up to 3:
2 x AN6562
1 x 25c33
Which is to say I'm almost done and I used the 2 I ordered on the 6562s which go in first.
synthasonic wrote:Hmmm... I bought a WillZYX express kit, thinking I'd be all set b/c I have a lot of parts sitting around, only to discover that Mouser and Digikey no longer carry polyester caps. Jameco's site is currently down, so I can't check there. Small Bear has a few, but not all of the values needed for a x0xb0x. Can anyone recommend another source for these caps?
astroschnautzer wrote:Is this BOM same as the original tb-303 or are there compromises made? I understand it is possible to get very near the original 303 with the right components so just wanto be sure before starting to order...
Thanks for the detailed answer. Is the BA662A changed to BA6110 because its hard to get or some other reason? And this BOM seems to have all its resistors 1%... But isn´t it just a matter of luck what the final value of the 1% or 5% resistors are, just that they are inside the procentage....Brassteacher wrote:astroschnautzer wrote:Is this BOM same as the original tb-303 or are there compromises made? I understand it is possible to get very near the original 303 with the right components so just wanto be sure before starting to order...
The only real "compromise" is the BA6110 in place of the BA662A. The difference in sound, if any, is still a subject of debate. I think some of the kits out for sale use a LOT more 1% metal film resistors than the original, and in my opinion that will make a noticeable difference. As the posts previous to this had trouble finding polyester caps, I think Mouser and others have more of what people will want listed as "mylar" caps, which are the same thing really. Mylar is just one brand name for polyester, and most of them listed as mylar caps will be packaged more like the originals, i.e., dipped in plastic as opposed to being contained in a small plastic box.
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