BA23 fan noise

Steven M Jones classiccmp at
Mon Feb 1 13:16:31 CST 2016

On 02/01/2016 08:22, Warner Losh wrote:
> [...] All you can do about that is to get a smaller fan that can turn more
> slowly. 

If you couldn't tell from the rest of his post, Warner meant "get a
larger fan," not "smaller."

This is why main PC case fans can now be had in excess of 5" / 12cm. The
lurid neon colors are also effective at smoothing out the
noise-producing turbulence... ;)

> With the BA23 cabinet, your options may be limited as to what you can do
> w/o modifications to sheet metal to accommodate larger fans.
> Less air flow is risky business for this old gear that has fewer heat sinks
> on the parts, relying on the air flow to carry the heat away.

Might be interesting to grab some of the 10mm X 10mm heat sinks commonly
sold with adhesive/thermal paste on eBay and strategically place them if
they'll clear the board spacing, just to help extend the service life of
the ICs...

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