Guitar sonic vintagising - ToneRite, etc

dallcorp

I'm another big believer in the positive effect of the Tonerite. Today I clipped my trusty TC Electonic tuner onto the neck of my J45 while the Tonerite was doing it's thing and found that the tuner indicated a slightly sharp G note from the silent but gently buzzing  guitar. That got me wondering and I'm guessing that the indicated note is a function of the frequency of the Tonerite's vibration? The adjustment on the Tonerite only seems to alter the intensity rather than the frequency of the "buzz". Are all Tonerites buzzing at the same frequency I wonder?

thermionic

If I operated the tuner in my Vox Tonelab with a single coil guitar I used to get a sharp G, which I think was 50Hz mains hum.