On Sep 20, 2006, at 1:30 PM, Dick wrote:
Very interesting Rich.
What would be the regulation of this switched mode power supply?
Cheers, Dick
I have no idea, but it has to be pretty good, since due to a switcher's light weight, if there was a lot of ESR, something would be likely to melt down.
--- In ham_amplifiers@..., R L Measures <r@...> wrote:
I purchased one unit from Costco. The price was $99. The unit was
surprisingly light in weight compared to my old transformer-
powered
400W u-wave oven. I found no RFI problem from 50 - 550 MHz. The
rating is 1300w, which is most probably the DC input power to the
magnetron. At 120V, c. 17A of current is drawn. If a SSB amateur
radio amplifier was built using the Matsushita switcher PS, two
units
are probably needed. By putting the 120V inputs to the two
switcher
supplies in series, operation from a standard, 240VCT, 20A outlet
would work. I have not yet disassembled the oven to measure the
HV.
Does anyone know what's the typical range of potentials used to
power
magnetrons of this size? tnx
R L MEASURES, AG6K. 805-386-3734
r@...
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