Peltier cooling?

[Sprint]

Contemplating playing around with a couple of peltier modules, but before I get too involved, does anyone know how much of a RF noise problem they are?

Also..... where is a good source for them?

[Blknight.aus]

that Ive found, zero noise, jaycar used to carry them

[JDNSW]

The Peltier effect works on DC, so no RF will be generated by the device itself. If it comes with a fan, or possibly a switch mode power supply (I doubt this) these could produce some RF.

John

[Wallyb]

As already mentioned they don't generate interferance.

Jaycar has a couple of models 50W and 68W, worth playing around with for $20

The key thing with them is the heat they generate - you need to keep the hot side cool!

The 68 W version needs a 15V 8A (120W) supply.

This means you have 68W + 120W = 188W of heat to get rid of.

[bee utey]

Thermoelectric Peltier Device Information (TE Heater/Cooler/Generator Modules) - Power Generators - Surplus Sources (http://www.peltier-info.com/surplus.html)

[rick130]

Get some good heat sinks too.

Dad played around with uprated modules and better heat sinks years ago when he was a distributor for the Canadian made Frostpak fridges when I was a kid.

He also made petrol fuel coolers with the uprated heat sinks way back when cars had carbies and spent a small fortune emission and dyno testing at UNSW and patenting the damned thing.