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RNC question
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Scott Dorsey
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RNC question
Don Pearce wrote:
On Mon, 8 May 2017 06:34:38 -0700 (PDT),
wrote:
On Monday, May 8, 2017 at 9:22:43 AM UTC-4, Scott Dorsey wrote:
In article , Mike Rivers wrote:
On 5/8/2017 8:01 AM,
wrote:
1.5A 9VDC supply, $6.95!
RTFMessage! This is a DC power supply (about a hundred of 'em - you
could have linked to the one you thought was the right one). A DC power
supply won't power a device that expects an AC input, at least not with
considerable modification.
I can't say offhand how the numbers work out, but I have two of them running
off a (10V at 1.2A) Triad FP10-1200 flatpack transformer, along with some
crossover electronics that probably take a hundred mA. The Triads are pretty
conservatively rated, they fit into a 1U case, but I think the 1.2A is the
largest one available.
If I was looking for 9 or 10 volts at 1.5A, I would look at the Amveco
(formerly Talema) toroids.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
I used to buy standard 12V Xfmrs, and removed secondary turns to whatever I needed. Costly to buy non-standard voltages, 18V CT makes more sense.
Jack
Switchers are dead cheap these days, and frankly they are pretty much
as clean as linears.
Fortunately or unfortunately, the RNC uses a trick supply to generate +/-15V
from an unreferenced AC input. So it really does need 60 Hz going in.
I'm not big fan of switchers; it's possible to make them quiet, or reliable,
or cheap, but I am not sure you can do all three. But sometimes you need
density and there's no way around it.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
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