- History camera lhting - Steve Cicchetti's Web Site
- Olympus T45 Flash Unit - my
- Leo's Camera Supply Clearance List
- V Mini Battery - Lumedyne. Com
History camera lhting - Steve Cicchetti's Web Site
(Actually, Ni Cd or Ni MH cells would probably give smaller number of flashes compared with the alkaline cells, but the recycle time between the flashes can be shorter.
Olympus T45 Flash Unit - my
The reason is that at charging the flash capacitor inside the flash current counts more than voltage. As a solution assuring the shortest duration between flashes Sunpak offered the Powerpak, a shoulder holster that held a dry (non-rechargeable) battery of 510V, it charged the flash capacitor directly, omitting the transistor inverter in the flash body.
Leo's Camera Supply Clearance List
One can insert Nickel-Cadmium or Nickel-Metal-Hydride rechargeable batteries instead of the primary cells, this way reducing the "consumables" costs at the expense of the smaller number of flashes per battery set.
V Mini Battery - Lumedyne. Com
Sunpak sells Ni-Cd battery packs named CL-2 for their flashes that utilize 6 AA-cells, and CL-3 for their 622 series (4 C-cells). As such battery became obsolete, the Poverpak has been superseded with the NC510 and later the TR-II PAK, which utilizes 10 Ni-Cd rechargeable batteries as a power source, and a powerful (more capable than the one in the flash) transistor inverter.
Sunpak ni-cad battery charger instruction manual:
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