Doug -- If the original AC fan quit on my TL-922, I would Not be
looking for an exact replacement, EBM/Papst's 5200N - series DC
brushless fan is 127mm diameter, the same as the 922's original fan.
The needed 12Vdc to run a 5200N fan can come by FWB-rectifying &
filtering the 11Vac fil winding. The advantage of a DC-brushless fan
is that it will push as much air running the 922 from 50Hz mains as
from 60Hz mains. This overcomes the 922's well-known problem of
running too damned hot on 50Hz mains. . Also, it is easy to make a DC
fan's speed vary according to temperature by placing a thermistor in
the exhaust airflow to control a power transistor which in turn
controls the V fed to the DC motor. Thus, the hotter the air, the
faster the fan turns. Is this cool, or what. // A good source for
EBM/Papst fans is Mouser --- www.mouser.com/ebm-papst p.1166. The
price is $47.34
- cheers
On Aug 15, 2004, at 6:28 AM, Doug Cain wrote:
I have a Kenwood TL922-A and the fan quit. What CFM fan should I look
for?
Doug KA5ROW
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Richard L. Measures, AG6K, 805.386.3734. www.somis.org
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