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Absorption refrigerator not working on gas

If the refrigerator does not work on gas, check ... Read more...

How to power supply the Peltier Cell from a PC?

Powering the Peltier module from the ATX computer power supply Read more...

Cooling of the Peltier modules

Does the Peltier Module Need a Heat Sink? Read more...

Ceramic filter IF on the radio CB has the mark HT only - what does it mean?

It means that it is a 455HT (455kHz +/- 3kHz) filter. The designation "IT" is a filter .... Read more...