writes:
<< The whine you hear on the flash unit is the inverter circuit ( an
oscillator ) converting the low voltage input to the 400-500 volts needed to
fire the tube
>>
Jim,
Interestingly, apart from studio flashes, almost all on camera flashes
nowdays use 330V, with a few running at 350V. I do have an antique Metz
(seperate power pak) which runs 550V as does an older Sunpak Ringflash I
have.
I had some correspondence with Quantum on this and they indicated
they only make turbo-z power paks in 330V. In talking with a far Eastern
capacitor vendor they indicated they only make 330V and 350V photo-flash
capacitors as that is the bulk of the market.
Regards,
>>Tim Hughes<<
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