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HW-100 - 12 volt filament mod for 6883 finals

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February 12th 05, 02:03 AM

[email protected]

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wrote:
Will putting the filaments in parallel to run 6883 finals screw up
the filament string balance and effect the other tubes in
the rig?

I have the schematic of the HW-101, which succeeded the HW-100 but is
basically the same. The 6146 heaters are in series, so with a little
rewiring, 6883s can be used.

But be sure to mark the rig to show that this mod has been done,
because if at some future time someone puts 6146s in, they'll be
toasted.

73 de Jim, N2EY

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