[BARC-List] Waveform of Costco generator vs Honda vs Dayton

[Richard Amirault]

----- Original Message ----- 
From: "Steven L. Finberg"

> I'm sure its just a cheap inverter.
> These days it is easier to regulate freq and voltage
> electronically.  Something like make unregulated LV
> with something like an automotive alternator and
> then use a switching inverter to make  115V 50/ 60 Hz.
> Honda pioneered it... then the mainland chineese
> started making knockoffs and eliminated all the "extra"
> parts in the output filtering.
>
> I wouldn't be suprized  to open one up and find
> empty holes on  the PCB for those parts...
>

I really doubt that there is any "inverter" in the Costco. Cheap (and 
mid-priced) stand alone inverters produce "modified sine wave" power ... I 
prefer to call it "modified square wave" power. Full sine wave inverters 
cost considerably more. I've put cheap inverters on the scope and the 
waveform looks nothing like the Costco. It is just a generator .. a cheap 
generator made in China .. and you get what you pay for.

Richard Amirault
N1JDU
http://bostonfandom.org