[GreenKeys] Looking For Bits

Keelan Lightfoot keelan at mail.grenander.com
Sat Aug 27 23:14:07 EDT 2011


This made me think of a more general question... My current loop supply outputs somewhere around 70 VDC; is there any need to go to 135 VDC when I'm running only local loops? As I understand it, the high voltage was needed to overcome the adverse electrical characteristics of a long loop.

The only anecdotal evidence I can provide is that my M28 and M32 both seem more than happy operating on a 70 volt loop.

- Keelan

On 2011-08-27, at 8:10 PM, Keelan Lightfoot wrote:

> 120V, 10VA-ish. A transformer with a few taps would be handy, as 160VDC seems a bit high for my liking. A 90V tap would give me somewhere in the range of 135VDC after rectification, which is more the level I am looking for.
> 
> - Keelan



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