SergeModular

Digikey also sells the LM3900. That's where I usually get mine.
There's a local electronics store here in LA who also stocks them for
me. They're Electronic City in Burbank, CA. Ask for John, tell him I
suggested you call. I think they have at least 50 presently.

If in a pinch, the commercial version - the LM2900 - will work just
fine. All Electronics has those. They may not show in their online
catalog, but they are there.

- P

--- In SergeModular@yahoogroups.com, "randaleem" <randaleem@...> wrote:
>
> Hi Amnesia,
>
> Mouser has the lm3900's and the NTE 3080 equivalent in stock. I found
> these by going to mouser.com and typing "lm3900", then "CA3080" into
> the search box at the home page. Jameco also has the 3900's and digi-
> key probably does as well. The 3080's hgave been discontinued for some
> time, but are still widely available from many smaller and boutique
> electronics suppliers. Small Bear electronics is one such place that
> has them and supports synth and stompbox DIY. futurlec.com is another
> source.
>
> As Steve correctly mentioned the 3900 in dip package is what you need.
> But you can easily use either the can or dip type 3080. Some have said
> that the dip 3080's have empirically shown better offset specs than the
> earlier can types. I've seen both types in use on serge PCB's. The
> 3080 also came in different suffixes. 3080A and 3080E are two which
> seem to be specificaly mentioned in synth schematics. The A type is
> held to tighter specs and a wider temperature range. Here's a datasheet:
> http://www.intersil.com/data/fn/fn475.pdf
>
> Kind regards, Randal
>
>
>
> --- In SergeModular@yahoogroups.com, amnesia <amni56@> wrote:
> > I cant find 3080's and LM3900s are they called anything else?
> > My stepped doesnt work so would love to fix the problem :-)
> > >
>