^{With respect to the builders, but this is 345 pages of fail.
Romero said himself it won't work, accept that it won't, he is a hoaxer.}

^{you're sure about that alan? I'd say just tired of the harassment recieved. Now he can be left to work.}

Below I am showing two waveforms of the generator coil that is causing speedup when shorted. First image is unshorted, second image is shorted.

Note that it is possible to fine tune the part of the wave which stays intact and which is getting distorted by the reed switch with the help of a backing magnet. Alternatively the reed switch can be moved too.

Hi Chalamadad

OK let me get this straight - first you "swtich short" the coil with that reed swtich under the black tape that you repaired - so this is what I call "shorting at sinewave peaks"....you see all that extra voltage it makes plus it doesnt effect draw - you cant go wrong with this.
If you want to replace that reed swtich with halleffect, mosfet and driver circuit I put up a good "solid state" coil shorting circuit here in attachment...this circuit works very good I was testing it jsut yesterday - this time actually shorting the MOTOR COIL itself (not just the genrator coil) this worked very good...

I dont see a capacitor in your circuit - you shoudl substitue a very large DC cap at end of it "for" the continuous-coil-short at DC side of FWBR that gives the speed up - if you can fill a large cap with that FWBR AND get speed up now you are in Romero-looping territory - I dont know why you wont be able to - you have successfully shorted the DC SIDE of a FWBR and got good speed up - most people, like Thane too, isually short the coils themselves and diodes ruin everything (at tleast that is what I have seem maybe not)

What is the resistance of that coil you are shorting in ohms?? jsut wondering...

To INCREASE the power you make even more (double it) - look at that scope shot you have of the coil shorting, and that "unaffected" negative peak down there.......right at that "flipover" point, thats where you do ANOTHER coil short (switched-short and probably you will use another reed switch)...I just did this yesterday in a drive/motor coil - the coil only fires atractive-pulse (which is also point in the coil's sinewave induced by rotor magnets that is also the  positive peak on scope)
and since I dont fire the coil repulsive as well, there is the same  "unaffected" negative peak that you see too (flipover point in negative voltage) - this is just sitting down there waiting to be shorted!!....I did this with the circuit posted here, (except PNP mosfets) now the 3500uf cap fills up to 24V very fast climbs to 60V and higher and higher...(runniing on 60ma and 12V at 950rpm)...most imoprtatn, filing up this cap with peak-coilshorting off the motor coil, DOESNT AFFECT DRAW - you HAVE TO have it happen right at the peak, or it DOES affect draw.

I have FWBR over the motor coil leads, and use a double PNP mosfet "bidirectional" set-up, so am shorting the motor coil on the POS (high) side....then the motor coil itself gets itself chopped to power the rotor around, via a single NPN mosfet on the NEG (low) side....

so if you are using Romeros motor/drive circuit he uses a PNP mosfet/transisitor on the high side, and if you want to coil-short you motor coil like I did, then you would use two NPNs hooked bidirectional on the NEG side (low)

you dont have to worry about all this NPN or PNP and lo and high stuff with reed switches they dont care....

anyways very good work this is great what you did really...add another reed swtich and short that "pickup" (AKA generator) coil AGAIN it wont mind...pickup coils to me are when you wrap a whole lot of extra winds around, and behind, a motor coil to pickup all the "ambient flux" going nowhere -  but this ambient flux will induce lots of normally wasted power into these pickup winds everytime the motor coil is pulsed. (another story) but I think proper term for the coil you are shorting is a generator coil....

ciao

Hey Kone, thanks for your feedback. I am really happy to see this effect.

Before I tested with the reed (which broke unfortunately, but still kinda works) I was trying to short at sinewave with the arduino controlled mosfet circuit. It is very similar to what Joefre has shown before. I tested several pieces of code, shorting at peak from 1 to 128 times at intervals of few microseconds. After all I didn't get any speedup effect like I am having with the reed. (I have one coil which I can get into self oscillation with the circuit as long as the input voltage is above 10V. I can even remove the hall sensor and it would continue oscillating. But don't know what to do with that.)

With the reed I can short out completely different parts of the waveform. I figured out that the waveform that I've shown is working very well and gives the most voltage so far. I am not sure if we want to short the complete waveform, because there is a time when the rotor magnets are not affected by the coil anyway. I would think the core wants a relaxation too. But I am unsure yet what the best waveform really would look like. For now I stick with what's working best experimentally. I will have to order a few more reeds if I want to add more generator coils trying to scale this up. I will try to connect a second one then as you suggested. But it might be the case that a second one isn't even necessary. The backing magnets can really help setting the shorting durations.

Coil resistance is 7.1 Ohm. Inductivity I cannot tell yet, ordered an LC meter but it was broken so I am waiting for replacement.

As far as I know those transistors are in fact NPNs (TIP42C). But as of now I am not playing on the driving side yet. I am not even recovering back emf from the driving side yet. I'd rather like to see what the best way is to fill a DC cap with the voltage that is coming from the generator coil first. Romero has hinted to try different caps. That's what I will do next and see what happens. The output voltage is nice but the cap I have doesn't fill fast enough yet. Need to order some caps.

I hope I can scale this effect up with more coils. If I am getting more and more voltage and the speed rises or even if it stays high under load that would be fantastic.

Chal