LCD ESR tester – multimetar

Skraćena veza: http://pedja.supurovic.net/veza/8105

lcd-esr-tester-meter

Zamislite da možete da imate univerzalnim merni instrument koji meri sve: otpornost, kapacitet, induktivtet, diode (obične i zener), tranzistore (bipolarne, FET, MOSFET, JFET), tiristore…

Otiđite u maštariji još dalje: zar ne bi bilo sjajno da ne morate uopšte da se cimate nego prosto ubodete komponentu u instrument a on sam prepozna šta ste uboli i izmeri karakteristike?

I povrh svega, da to lepo pregledno prikaže na ekranu?

Luda ideja, ali još je luđe da to u stvari postoji i to čak radi i više nego što ste izmaštali. A najluđe je što je vrlo jeftino. Ovakav tester košta oko 15 do 20 dolara, a meri maltene sve što ubodete u njega. […]
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How to use Baofeng UV-B5 flash light switch for LCD background light

Skraćena veza: http://pedja.supurovic.net/veza/7318

Soon after I got him this nice walkie-talkie, my brother Nenad (YU1TTL) quickly found out how to overcome missing feature of UV-B5: LCD background light is turned on only when some keys are pressed and stays on far a very short time. He managed to use flash switch which is used in UV-B6 version but in UV-B5 has no function.

He decided to put up instructions on my blog so others can benefit of this modification. So here it is:

How to use Baofeng UV-B5 flash light switch for LCD background light

by Nenad Supurović YU1TTL

These are instructions for disassembling Baofeng UV-B5 walkie-talkie and also how to modify it to enable the third (Flash light) button to switch the LCD and keyboard back-light on/off

Disassembling:

1. […]
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