Can someone answer me a dumbo question

[DHCP]

I have used the search using the term "notches in tubes" & it came back with nothing, my question is why did Stan cut notches in the ends of his tubes in his WFC is this known & obvious or a mystery as I have a theory but I dont want to look more stupid than I probably do already, the brains on this site stifles me so I would rather check before I look a compleat burk
Regards
D

[hunter]

What I think, (I might be wrong) the cut slots on the outer tubes purpose to match the frequency of the inner and outer pipes with setting up a standing acoustic wave.

[HeairBear]

On a "slotted" metal pipe, some or all of the metal cut out to make the slot is rolled up to the slot can effectively be shortened or lengthened, thus changing the pitch of the pipe.

[DHCP]

Good were on the same path here then I see lots of WFC replications with good results but not the over unity that Meyers claimed but in these tests I see people convinced its because they haven't got the electrolysis frequency right, but I have not seen one mention of harmonic resonance, what got me thinking was I watched a program about how church organs are made, from what I remember they cut notches in the ends of the pipes to adjust the note, which would indicate that was what Meyers had done in his tubes, so maybe the harmonic resonance is as crucial as the electrical?
In the way microwaves excite water molecule causing them to vibrate & the consequence produces heat, could sound waves not excite the water molecule in such a way as to simplify the work for the electrolysis, exciting the water and partially loosening the Ho From the O before the charge finishes the job?.
I am probably way off here just hopeing it may give the bigger brains on here a slightly different angle to look at?   

[sirmikey1]

  Just make sure you are achieving stage 3 production bubbling,
and there are plenty of videos on youtube and google to show you
what this looks like.  Without stage 3, you aren't producing enough
fuel for anything. Meyers was pulsing at 2000 cycles per second,
using only 1 amp; remarkable bubbling, likely stage 6. From what
I hear, you dont' need gasoline at all at the higher production rates. 

  Meyers later device, the spark plug replacement device, uses sound
waves to instantly vaporize water into explosive energy, on demand. 
With this one, you can remove the gas tank.   

Mikey