Re(2): [sdiy] Equiv of LM3900?

[John Loffink]

Note that some of these equivalents have a more limited supply voltage
range, 5-18V, not 4-32V like the LM3900s.   Also, I bought some RCA
3401s from a discount supplier (All Electronics) and the matching of the
current mirror appears to exceed the specification, causing some
circuits to fail unless you tweak them.  One clue about these parts was
that RCA hasn't badged ICs in 10 or 15 years, having gone through a
series of buyouts by GE, Harris and Intersil.

John Loffink
jloffink at austin.rr.com 

> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl [mailto:owner-synth-
> diy at dropmix.xs4all.nl] On Behalf Of Synth-DIY
> Sent: Saturday, March 02, 2002 12:22 PM
> To: synth-diy at dropmix.xs4all.nl
> Subject: Re(2): [sdiy] Equiv of LM3900?
> 
> ijfritz at earthlink.net skriver:
> >An upgraded Norton amplifier is the LM359. It is much faster than the
> 3900,
> >which it is intended to replace. DigiKey has them.
> 
> Thank you (and everyone else). I found that one on Farnell.
> After some more search there, they lists RC4136 as a replacement for
the
> 3900.
> 
> Thanks all for the help!
> 
> Per Mattsson