Thermic Cart Control 2

Thermic Cart Control 3
Thermic Cart Control 1
Thermic Cart Control 2
An infrared source utilising a gooseneck lamp holder (reptile lamp) illuminates the tracking and resting area of the tonearm.
According to Stefan-Boltzmann law, the black-painted tonearm and headshell absorb the IR-radiation and heat up in a rather controlled way. With this specific lamp and filter it requires some 4W electrical input power per °C to heat the headshell (above ambient) incl. thermally coupled cartridge. This relation is almost linear, but reverse proportional to the square distance, therefore it requires some prior power adjustments with the dimmer on the upper board to achieve a controlled cart temp.
eliash
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Thermic Cart Control 2


08 Nov 2018 13:56
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