[Milsurplus] Shade-Tree Scope Calibration

[Kenneth G. Gordon]

On 10 Oct 2020 at 18:29, David Stinson wrote:

> 
> Off by a decimal place I believe, Ken.

Ha ha! More than that! :-)

> 270V PTP = 135V Peak x.707 = 95.4V RMS,
> PEP=VRMS2/R means 182W PEP.

Sounds pretty close to me!

We can also use the formula: Vrms = 0.3535 * Vpp.

270 X 0.3535=95.445

Then, 95.445^2/50=182.195W

MUCH better... :-)

Ken W7EKB