[Boatanchors] OT audio amplifier
J. Forster
jfor at quik.com
Wed Jul 13 16:17:33 EDT 2011
You could use any type cap, except ceramic... they are microphonic. I've
not seen the circuit, but it may need the capacitance for low frequency
response.
Caps other than electrolytic would be physically a lot bigger. Hence the
electrolytic.
-John
===============
> I wish to pick your brains. Does anyone remember or have you built an
> audio amp replacement for the LM386 using the SSM2211 as was in CQ
> under the column Math Notes?
>
> The copy of the article I have shows a 2.2ufd electrolytic as the
> input coupling capacitor. Being a hollow state born and bred guy, this
> puzzles me. Why an electrolytic?
>
> I am sorry but I cannot find what issue that article was from but the
> amp circuit is pretty darn close to the spec sheet from Analog Systems
> which shows their "typical application."
>
> 73, Dick KF4NS
> St Petersburg, FL 33714 USA
> Keep The Glow!
>
>
> ______________________________________________________________
> Boatanchors mailing list
> Home: http://mailman.qth.net/mailman/listinfo/boatanchors
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Boatanchors at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
More information about the Boatanchors
mailing list