[R-390] R-390/URR FanPlate

[Flowertime01 at wmconnect.com]

Hi,  will a 3tf7 work or should I use a 12BH7?

Dan,

If you have a 3FT7 just laying around, offer it up here to a needing soul.
Use the proceeds to buy some resistive sand. 

There are ways to reduce fan speed without generating more heat. 
AC fans can use triacs. However you need to watch out for switching noise.
DC fans can use pulse width modulated power.

Resistors do work OK. A 3FT7 as a fan resistor would not be cool. (Pun 
Intended)

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