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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Re: BATTERY for filament heating posted by dave slagle on October 26, 2001 at 13:57:35:
Hi Guys,I have been following this post partially because I would like to heat my 26s with nicads and partially because I am at the mercy of batteries everyday. Most of our Betacams run off of a BP-90 style pack. They are rated at 12 volts but if the meters in our veiwfinders are at all accurate, a fully charged battery will read well over 12 volts...sometimes over 13! Most use high capacity (either 4 or 5 Ah) Sanyo cells in series. I'm curious if these cells are purposely under-rated or if this might be the result of the chargers that we are using. At any rate, I'm hesitant to try these for fear of putting undue stress on my tubes.
FWIW-you can find these 12(13.2) volt nicad packs on ebay for under $100 with a 3 year warranty from time to time. Look for Anton Bauer brand or Pro Battery. Check out the link below- I called a few months ago and they were selling them outright for $80.
Tom
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- Re: BATTERY for filament heating - hifitom 22:03:33 10/26/01 (0)
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