help with building the no can dew buster controlle
Posted By Ron Oehlert
When you say unsucessful, does it not eliminate dew formation? These devices are Not hand warmers. Your pic is unclear on my pc with some connections & print unreadable plus I cannot discern heater element conection, so I cannot comment on the schematic. You do know that the circut Common return is to be connected to power Negative? Suggested contruction methods would be to use a socket for the IC rather than soldering direct to IC; some IC's are static sensitive & require special handling procedures with a Ground lead attached to the handlers' wrist. If you have hand soldered direct to IC, it is probably dead. Leave transistor & diode leads long & apply heat sinks when soldering to them (arrange sinks so that heat is drawn Away from device rather than towards it). Leave all part leads long & Do Not snip leads short until After soldering.