BA-302 data

Ethan Dicks ethan.dicks at
Wed Jan 28 09:58:08 CST 2009

On Wed, Jan 28, 2009 at 10:51 AM, James Gessling <jgessling at> wrote:
> My radio shack 150 in one electronic project kit (cat
> number 28-248, maybe 1976?) contains a part listed as
> an "Integrated Circuit".  Model number BA-302 is
> listed and that's what's on the part.  It's a 7 pin
> inline package.  The text mentions it to be a "ring of
> three" amplifier.
> I've been having quite a bit of fun working with this
> kit, never had one as a kid, but this part has me a
> bit baffled.  Internet searches haven't turned up
> anything useful.  Anyone can help?  I'd really
> appreciate it.

I had the 150-in-1 as a kid (and still have it)... ISTR they put the
equivalent circuit either in the manual or on the cardboard face of
the kit... it's a simple 3-transistor amplifier, and I've never seen
anything like it in the wild, but perhaps it was used in FM radios of
the day?


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