[Amps] Dual power supplies in EB104 4X MRF150 design

[Anthony Rick]

Hi all,

I'm working on building a solid state amp based on the EB104 design, and
cheaply.  The only constraint that is causing problems is the power
supply.  It appears that a single 50V/20A is going to be pretty expensive
while 48V/10A supplies are readily available as telecom surplus for pretty
cheap.  Looking at the EB104 schematic (
http://www.communication-concepts.com/eb104.htm) it seems probable to power
each MOSFET pair from a separate supply with only the need for an additional
isolation capacitor.

Unfortunately the supplies I am seeing, usually Lambda, are not designed for
parallel operation so that easy alternative is not an option.

Any thoughts?

Thanks,

Anthony
NR9R