help: Mounting a 12V DC Fan?

Where can I get a bracket to mount a small 12V DC Fan to the bottom of my chassis?

 

Typically, you want it behind the power tubes and blowing out the back of the amp but I think almost anywhere is good if you're using a combo amp. The issue is that most fender style amps trap the hot air because heat rises and the back panel tends to encourage the hot air to just sit which basically just applies a "kenner-easy-bake-oven" principal to the components in your amplifier!

 

I wouldn't trust that hanging upside down on a hot chassis in a combo amp!

 

If you have a link to any sites with brackets for the fans, I'd appreciate it. Regarding the circuit, it's pretty simple. Use a 1V 50A bridge across the 6.3v taps and filter the output with a 2200UF cap. You'll get ~9v of power.

I should have bought your Jensen!

 

On a fender amp, probably mount the bridge network near the pilot light which is fed by the 2 heater wires...

 

The rectifier and cap will smooth the ripple and convert the 6.3AC into DC and since it's a DC fan, there shouldn't be any noise induced by the fan motor.

 

That looks interesting but I wouldn't want to use something so large and in the plane of the speaker due to the possibility of the doppler effect from fans.

Anyone who thinks this is not real - Go set under a ceiling fan and play your acoustic guitar or electric guitar (acoustically). You may be surprised!