[time-nuts] time-nuts Digest, Vol 79, Issue 31

[Mike S]

At 11:37 PM 2/10/2011, Rick Karlquist wrote...
>It isn't clear why you need to change to 12V fans.
>Why not "modern" 120V fans?

The PC market has driven the creation of quiet, low cost, 12V, 80mm 
fans.

You can get a ball-bearing Pabst 8506N, which is comparable to the 
original fan, 35 dba noise, 11 Watts, from Mouser for ~$45 shipped.

Or you can get a 12V ball-bearing fan with similar specs, which is 5 
dba quieter, and draws 2 W,  for $9 shipped. ( 
http://www.newegg.com/Product/Product.aspx?Item=N82E16811999107 ) You 
could also get a 12V sleeve-bearing fan @24 dba for $10.

I have no idea how what noise rating the original Pamotor (Pabst) 8500C 
had.