Wednesday, December 21, 2011

Joule thief

Saturday, November 26, 2011

28 MHz VXO - PTO

Is very good , KE7HR Paul R. Jorgenson -five crystal ,VXO . VXO my work on 28,2 MHZ

Wednesday, November 23, 2011

Tuesday, November 8, 2011

Sunday, November 6, 2011

CD wind turbines

CD wind turbine with "joule thief"

CD wind turbine with "joule thief",when the wind blows, at night, lights up well

Monday, October 24, 2011

Monday, August 29, 2011

Sunday, August 28, 2011

Generator 3w 6v

Bicycle generator "Union" 3w 6v . Voltage multiplied by 4 times

Saturday, August 20, 2011

"Heavy" gigahertzs

Tried catch the internet - no luck. Will do solar collector. If it fails too - I'll make a table from it hihi

Tuesday, August 16, 2011

Simple 2,8w linear generator

700 turns 0,2mm , coil 2,5cm x 1,5 x 1cm ,neodymium shiver, multiplier,the result about 2,8w output. Using wind turbine , can throw int the yard or garde all night for free .

Thursday, August 4, 2011

Linear generator 16v

Two 3000 winding coils, wire 0,2mm , 5cm x 5cm x 1cm neodymium magnet. 4v multiplied by four, the result is +16v about 0,7 A.

Saturday, July 30, 2011

CD wind turbine with Epson stepper

Epson stepper motor from a broken printer ,capacitors and diodes from an old computer. CD wind turbine turns on very low wind, very quietly, the LED light up brightly in the dark. Green energy cost 0 USD.

Friday, July 1, 2011

Sunday, June 26, 2011

Monday, June 20, 2011

Thursday, June 16, 2011

Wednesday, June 8, 2011

Saturday, May 28, 2011

TDA 7052 28MHz receiver

27 May, with 5meter wire, heard LA3G? SP...

Sunday, May 22, 2011

Friday, May 20, 2011


Fits like a tone control transmitter, frequency meter...

Wednesday, May 18, 2011

50,06 - 50,120 MHz RX

This is my first attempt to draw schematics with gEDA (Linux). Overall I am very satisfied with the results.

Monday, April 18, 2011

28 MHz 1w QRP transmitter

Nice emitter manipulation of the T1. T1-T3 any 150mc transistor. T4 is 1w, or two 2n2222 in parallel. T50-6 rings, perpendicular. If more power needed one can connect NB6M QRP "gallon".

Friday, March 18, 2011

28,096MHz mini beacon

This one can be heard well within 5 meters.

Tuesday, March 15, 2011

432MHz - 144MHz mini beacon

On 144 MHz it is heard well within 4 meters distance. 432MHz beacon is heard good about 30cm. For easy converters/receivers testing.

Linux Mint

There was a silence in my blog due to migrating my old PC's OS from WindowsXP to Linux Mint.
The main reason for doing that was that my PC became unbearably sluggish - older PCs and modern anti-viruses don't match. It looked like it dedicated itself to antivirus and OS updating/maintaining tasks - not mine. Despite having constant updating OS and anti-virus (one of the industry leaders) I managed to catch some malware... (I do visit only hamradio related sites).

One can easy guess my reaction after that...

So far everything is going smooth - I like how responsive become my old PC and I have all the tools needed for my everyday work (echolink, spectrumlab, kdenlive). I don't miss Windows and seriously considering to abandon Windows in my Toshiba netbook.


Saturday, March 12, 2011

432 MHz TX

Used the fundamental harmonic 24MHz quartz.Multiplied by the apperance of 432MHz . TX easily reapyted, uncritical.Coil L2 may not be connected, directly to the antenna coil L1 the signal strenght is. Best to use SMD coponents. Error,T1 emitter 36 pf not 1000pf

Thursday, March 10, 2011

432 MHz Slim Jim antenna

Slim Jim antenna is well suited as field indicator . 100micro A device used 1N5711 diodes. Field indicator finished. Maxlog with a standard antenna ,the indicator arrow for fully tilted 5m Diode conecion uncritical.

Sunday, February 6, 2011