Pulsed DC Transformer with Embedded Magnets

[Paul-R]

There is such a thing as a Grid Dip Oscillator which helps chasing
resonance in RF circuits. It might be worth your while to investigate them
http://en.wikipedia.org/wiki/Grid_dip_oscillator

[ltseung888]

There is such a thing as a Grid Dip Oscillator which helps chasing
resonance in RF circuits. It might be worth your while to investigate them
http://en.wikipedia.org/wiki/Grid_dip_oscillator

Thank you, Paul-R.  You and other helpful people really helped to advance the technology much faster.  The following are some of the interesting comments at the HKU presentation.

Comments 1: “Your COP was over 10 this morning.  Why is it only 1.5 now?”
Reply 1: “We wanted to light 26 LEDs because Tseung bought the strips.  Thus we changed the configuration.  The 1 ohm resistor at the Input got hot and might have changed its characteristics.  The Input peak-to-peak voltage jumped to 5 volts with a 1.0 AA battery.  We tried to change back to the original configuration but we could not get the COP > 10 condition again.  You saw the panic mode we were in.”

Comment 2: “In tuning, you need variable capacitors, variable inductors and variable resistors.  The best arrangement is three coarse dials and then three fine dials.  I do not see that in your set up.”
Reply 2: “We tried to buy ready-made components from the market.  Variable resistors are easy to find but they affect the Q factor more.  They do not change the actual resonance value much.  We cannot find suitable variable inductors or capacitors.  Thus we build a home-made coil around a hollow glass rod and insert soft iron to simulate variable inductor.”

Comment 3: “You mean that ugly thing over there? Does it work?”
Reply 3 “You hurt its feelings.  When we put it into the circuit, it indeed affected the frequency shown on the scopes and the peak-to-peak voltage values.  However, the moving of the soft iron rod did not seem to affect the readings much.  May be the device is too coarse.”

Comment 4: “You mentioned that you could find the 1KW condition within THREE days.  Can you elaborate on it more?”
Reply 4: “The hidden assumption is that we have the coarse and fine adjustable inductors, capacitors and resistors.  We may be able to get away with only adjustable inductors or capacitors.  It is a matter of turning the knobs and watching the two oscilloscopes.  We can be watching TV or listening to music at the same time.  With two or three sets of equipment, our four student team members will have an excellent chance of hitting on a possible resonance point.  They are developing a feel already.”

Comment 5: “Wow.  The offer of HK$500K will drive the student team members hard.  If there were an open competition and all candidates know the basic theory and experiment operations, the chance of hitting a 1 KW condition within three months is almost a guarantee.  What happened to the HK$500K prize money now?”
Reply 5: “Apparently, the Angel Investor talked to his family on potentially investing HK$100 million.  That created much discussion and disagreement.  The Angel Investor might have problem investing the HK$1 million from his own pocket now.  His family members never cared about his spending HK$50K in the overunity demonstration.  They would not have cared if he kept quiet and pulled out HK$1 million from his pocket.  But there is something called “too successful” a demonstration on July 19.  It got the Angel Investor too excited and he wanted to invest some of the family fortune.  The outcome is â€" all investment from him and family is on hold.”

Comment 6: “You do not really need seed money for a couple of adjustable capacitors and inductors.  If you have a working 1KW device, hundreds of potential Investors will knock at your door.”
Reply 6: “Tseung does not need money to pay for food, lodging, children education etc.  Dr. Ting needs money to support his family.  He must have significant income to sustain his involvement.  The students love the extra income but they will still work on FLEET with no income.  Ms. Forever Yuen has done that for over 5 years already.  They participated for the experience, fun and challenge.  They love the chance to present in front of the top professors from MIT, Stanford and HKU.”

Comment 7: “Do you think that a FLEET product will come out within 12 months?”
Reply 7: “The book with a DIY kit is most likely the first product. The DIY product may use manual swap of two AA batteries.  That product can light up 10 LEDs ‘forever theoretically’ with the manual swap battery technique.  We may even consider enough LEDs in the bulb for reading the book at night.”

Comment 8: “If you can build a Gadgetmail device that can boil coffee, I think you will have a sure winner.  Just invite the critics and press for coffee or tea.  You will never need to worry about investment.”
Reply 8: “Good suggestion.  We shall work on it.  We shall invite you for the first cup of coffee.”


Lawrence Tseung
Director
Help Seedlings Innovate Foundation Limited

[FatBird]

Lawrence, Thank you VERY MUCH for sharing your SUPER NICE photos and conversations.

Click on this link to see Variable Capacitors for sale on Ebay.com:

http://shop.ebay.com/?_from=R40&_trksid=p3907.m570.l1313&_nkw=capacitor+variable&_sacat=See-All-Categories

.

[chrisC]

.....
The outcome is â€" all investment from him and family is on hold.”

.....
Lawrence Tseung
Director
Help Seedlings Innovate Foundation Limited

hahahaha! Same old story. Don't you think you've told this story so many times, it's becoming more stale than a rotting fish?

Maybe if you showed something real or has real potential, then the investment money will be real! That's usually how technology investments work in the Silicon Valley and other tech. areas. People who talk more than they can show are usually ignored except by some die-hard idiotic supporters.

cheers
chrisC

[Hope]

Thank you for the update of your device (again).
and as for chris ...   go soak your head till you find manners and post an idea or something constructive so we can all "forum group mind" over it.  I found Grid Dip Meters from $100-400 on ebay and Harrys DIY dipmeter schematics are free.  Seems I remember the "suitcase power supply" having a GDO type resonance finder.  Can you place the device on an old CRT monitor and "see" the fields react as you adjust?  COP > 10 congratz!!!