Monday, November 8, 2021

Blender from coffee jar

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The Simple FM Receiver with Audio Amplifier

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The radio-broadcast FM transmitters operate with output power that is much smaller than that of the AM transmitters. That is why the LF signal coming from the device on Pic.3.43 is rather small, urging the use of very sensitive headphones. They are much more expensive than the “ordinary” ones, making it better to use the cheap headphones in connection with audio amplifier. One such solution where TDA7050 IC is used is given on the Pic.3.44. The R3 resistor and capacitors C5 and C6 are to be added only if the operation of the device is unstable. There optimum values are to be found experimentally, starting with those shown in the picture. For loudspeaker reproduction any of the previously described amplifiers can be used, e.g. that from Pic.3.21 (which we have been using, very successfully), or one of the devices described in P.E.4 and P.E.5. Since in these amplifiers a battery with voltage bigger than 3 V is used, using of R3 and C5 is obligatory. The R3 is counted from the formula
R3 = (Ubat - 3)/0.235 [kOhm]

where UBAT is battery voltage, and 0.235 mA is the current through R1, that supplies T1 and T2. E.g. if UBAT=9 V, it is then and the nearest existing resistor is used.
R3 = (9-3)/0.235 = 25.5 kOhm

Capacitors C5 and C6 comprise, together with R3, a pass-filter for very low frequencies, which is used to separate the HF and LF parts of the receiver. The battery itself acts as a short-circuit for the AC currents. But when it ages its resistance increases and there is no more short-circuit. That is why C3 and C4 are added, to accomplish it.




Ultra simple FM Radio:




L1 which is the oscillator coil is an air cored inductor, meaning no core is required, wire is super enamelled type, 0.8mm in thickness, diameter of 8mm, with five turns.

L2 is wound over R6 itself using 0.2mm super enameled copper wire with 20 turns.


Sunday, November 7, 2021

Transmitters

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 https://www.jameco.com/shop/keyword=10-Mhz-Crystal-Oscillator


Turkish Transmitter























Indian Transmitter

Boot PC from USB

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++


https://tails.boum.org/install/dvd-download/index.en.html


https://tails.boum.org/install/clone/index.en.html


 Identify the possible Boot Menu keys for the computer depending on the computer manufacturer in the following list:

ManufacturerKey
AcerF12, F9, F2, Esc
AppleOption
AsusEsc
ClevoF7
DellF12
FujitsuF12, Esc
HPF9
HuaweiF12
IntelF10
LenovoF12
MSIF11
SamsungEsc, F12, F2
SonyF11, Esc, F10
ToshibaF12
others…F12, Esc

Kako dodatno ubrzati Windows 10 ?

Settings > Update & security > Advanced options > Delivery optimization i isključiti Allow downloads from other PCs.

Settings > System > Notification&Actions i isključiti stvari kao što su Get tips, tricks and suggestions kada koristite Windows ili Show me the Windows welcome experience after updates and occasionally when I sign in to highlight what’s new and suggested i predložena i pojedinačna obaveštenja o aplikaciji.

Settings > Personalization > Start > Show suggestions occasionally in Start.

Settings > Privacy > General > Let apps use advertising ID to make ads more interesting to you based on your app activity (Isključivanjem ovoga ćete resetovati vaš ID).

Settings > Privacy > Inking & typing i isključiti opciju.

Settings > Privacy > Background apps i ili isključite Let apps run in the background ili isključite svaku aplikaciju pojedinačno.

Settings > Accounts > Sync your settings. Možete isključiti sinhronizaciju svih podešavanja ili možete selektivno isključiti određena podešavanja.

Settings > Updates > Advanced options i pod Pause updates izaberite datum u narednih 35 dana. Međutim, nećete moći ponovo da pauzirate nakon tog trenutka dok sistem ne ažurirate.

Šta jesti ? Pa ono što jede Nole:

Kinou mogi korste kao zamenu za meso, obiluje vitaminima i mineralima i vrlo je hranjiva. Ona sadrži mnogo više proteina, vitamina B, dijetalnih vlakana i minerala nego mnoge druge žitarice.

Ako je jedete uz neo varivo gotovo da nećete primetiti razliku između ove žitarice i mesa.

Ono što je bitno navesti je to da kinoa sadrži svih osam aminokiselina koje su čoveku potrebne, za razliku od ostalih žitarica koje sadrže najviše tri. Čak su i Ujedinjene nacije prihvatile kinou kao superhranu.

Takođe, kinoa ne sadrži gluten i veoma je laka za varenje.

Kinoa pomaže kod varenja, a samim tim i mršavljenja, izbacuje nataložene toksine, ali i povoljno utiče na imuni sistem.

Narodna medicina kinou još koristi i za lečenje kožnih bolesti, reume, a zbog visokog sadržaja kalijuma ona blagotvorno utiče na kardiovaskularni sistem.


Friday, November 5, 2021

Ventoy Linux goodies 2

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What is your typing speed ?

Fast programming without installation, just from web browser:


Windows goodies:

https://www.howtogeek.com/223864/how-to-uninstall-and-block-updates-and-drivers-on-windows-10/

https://www.howtogeek.com/765377/how-to-block-the-windows-11-update-from-installing-on-windows-10/

The Ventoy hall of fame:




1
2
3
4
...








PORTEUS GOODIES:

Once the USB drive is booted making it persistence is a 2 step process.

1. You create a savefile file.

Menu > System Tools > Porteus Savefile Manager
Enter the password for root. toor
Click on Click + to create a new savefile file.
Enter the Location of your USB drive. Usually something like sdb1.
Click OK.

Thus on your USB drive, sdb1, you will have a savefile file named: porteussave

2. You tell the Porteus boot menu where the savefile is.

Open the /mnt/sdb1/boot/syslinux/porteus.cfg file. sdb1 being the address of your USB drive.
Scroll down to the first APPEND line.
To the APPEND line add: changes=/mnt/sdb1/porteussave

When you reboot changes you make will be saved.

OK?

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