This is a look inside a fairly common Dezac ioniser / negative ion generator.
It's quite a smart unit, and has a fairly standard multiplier circuit optimised for European 220-240V operation.
Notable things are the horrible little neon lamp under a blue coloured tip. A blue indicator would have been quite cool looking, especially for something that was made before blue LEDs existed. It always looks a bit twee when an orange indicator is put behind a green or blue filter, since the narrow wavelength of the neon light always just ends up looking out of place.
The resistor for the neon is super-generously sized. That's possibly because they noted that the Mountain Breeze ionisers had issues with their neon indicator current limiting resistors burning up.
The circuit is a very standard 22 cap/diode multiplier with the usual 10nF 630V capacitors, 1N4007 rectifier diodes and two 10 megohm resistors on the output.
While trying to open the unit I mistakenly put the mains flex into the strain relief section in the middle of the case. Looking at the flex it is not kinked in a manner that suggests it has been round that loop. Probably because in hindsight they realised that the adjacent part of the circuit board was live at several thousand volts above the insulation rating of the cable.
The case appears to be heat staked or at least forcibly clipped together. The two parts had to be destructively prized apart.
Негізгі бет Inside a Dezac pyramid ioniser.
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