Stefan, as you and I were discussing, you can't trust the audio frequency in the Tesoro online manuals.
I've been youtubing Tesoro audio and the manuals are wrong.
The Outlaw says 630hz which is the same as the older Tesoros, well, it ain't.
And a high tone mod Vaquero isn't as high as the older 630hz models.
I found an app that works well,
https://play.google.com/store/apps/details?id=com.vuche.asap
Visually displays spectrum. Harmonics are present but I assume the lowest frequency displayed is the fundamental, a square way also I assume with all the harmonics.
(I'm not an engineer but I have stayed at a Holiday Inn Express)
I thought about sending in my Vaquero for higher tone mod, but if it isn't like the good old days, I'm not interested.
What am I missing?
Seems someone at Tesoro decided to get away from the high tones and no motion metal. Lawsuit? Copyrights? Hold my beer, watch this?