[Amps] Buck-Boost Transformer Selection

Paul Christensen w9ac at arrl.net
Wed Jun 25 16:23:11 EDT 2014


> 'It's a switchmode power supply with "universal input," and will become 
> more efficient at higher line voltages...'
>
> WB2WIK

If that's the case Steve, I would only be concerned if the amp's firmware 
reported a fault due to high line voltage and perhaps causes the amp to 
trip-out.  Because of filament voltage, I'm much more concerned about line 
voltage with my tube amps and really have no concern when using my SPE. 
Line voltage here typically runs 252-255VAC.

Paul, W9AC 



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