Muller Dynamo

[plengo]

Those are the bobbins I ordered this weekend:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220690920914&ssPageName=ADME:L:OU:US:1123

also rods

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=400137000838&ssPageName=ADME:L:OU:US:1123#ht_929wt_939

bearings and shaft

http://www.vxb.com/page/bearings/PROD/kit1002
http://www.vxb.com/page/bearings/PROD/Kit11677
http://www.vxb.com/page/bearings/PROD/Kit7257
http://www.vxb.com/page/bearings/PROD/Kit7580
http://www.vxb.com/page/bearings/PROD/Kit7581

Magnets

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220778446228

black iron oxide powder (DIY ferrite rods)

http://www.amazon.com/gp/product/B004KICAVU

The rotor disk is just regular MDF 1/2" wood and the acrylic to make the disks from

http://www.acrylicsworks.com/clear-acrylic-plexiglass-sheet-20quotx-20quot-38quo202038.html


Fausto.

[duff]

Here are the possible frequencies / voltages of RomeroUK scope shot wave form.

Possible timebase settings / Frequency:
1ms  = 500Hz
.5ms = 769.23Hz
.2ms = 1.92KHz
.1ms = 3.85KHz
50us = 7.69KHz
20u  = 19.23KHz

Peak To Peak Possibilities:
Range / Volts
.1 = 263mV
.2 = 520mV
.5 = 1.3V
1  = 2.6V
2  = 5.2V
5  = 13V
10 = 26V

[duff]

Audio Spectrum  Analysis of RomeroUK "Suspended In Air" Video
(first 20 seconds of sound)

[tanakat]

Rotated version, helpers

*edit* uploaded the image twice it looks... can't edit attachments ?

[eastcoastwilly]

@ eastcoastwilly

What are we seeing there? Does he have it working only partially built, or is it just running off the cap?

He has pre-charged the capacitor to 1.5 volts to run the motor and demoing the power output via the Joule Thief circuit. It's not self running just showing that it is generating some power.

Will