On 7/16/11 7:06 PM, threeneurons wrote:
Simple answer, don't use a transformer. There are plenty of step-up
converter designs that use more commonly available inductors.
nixie power supply
The two at the lowest price come from Mr Taylor, a member here. Not
only are they at the lowest price, but they also have the highest
output, and are the most compact. ... Also his supply (Talyor's,
not Bill Gates) starts working at ~3V in.
His supplies are very nice and quite low in price. He also earns a
living designing power supplies, so he has access to techniques and
supplies that the rest of us are not tuned into. So I'd recommend them
in a heartbeat if you have the space for the dime-sized PC board.
However, if you're making a very small clock/watch using tubes with
nipples such as the 5870, the LT1308B and its 31105 transformer fit very
nicely under the nipples. Mr. Taylor's supplies can't do that.
Also, if you wish to run the clock/watch off a single 3V battery, then
the Taylor or the LT1308B are your only choices. The inductor-based
designs don't run at 3V input.
--
David Forbes, Tucson AZ
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