Orijinal görüntüsünü görmek için buraya tıklayın. 780x506 px.
Daftar Komponen :
TR1 ………………. SC1971.
TR2 ………………. SC1964.
C1, 4 ……………… 8 pF ( kondensator trimmer batu ).
C2, 5 . ……………..10 pF ( Kondensator trimmer batu).
C7, 8 ……………….20 pF ( Kondensator trimmer batu).
C3, 6 ……………… 2200 mF/50 V.
L1, 4, 7 …………. Diameter kawat 2mm
Diameter inti udara 8mm .
Jumlah lilitan= 3 lilit.
L2, 5 …………… Diameter kawat 2mm
Diameter inti udara 8mm
Jumlah lilitan= 9 lilit .
R1, 2 …………….. 100 ohm / 2 watt.
L3, 6 …………….. Diameter kawat 0,4mm
*.Catatan : Untuk R1, 2 dan L3, 6 dililitkan bersama .
Cara merakitnya :
1. Kamu beli papan PCB polos di toko elektronik, lalu kamu lukis menggunakan spidol hitam hitam sesuai dengan gambar di atas kemudian rendam pada larutan feriClorida .Tunggu sampai
bagian yang tidak terkena spidol hilang .
1. Kamu beli papan PCB polos di toko elektronik, lalu kamu lukis menggunakan spidol hitam hitam sesuai dengan gambar di atas kemudian rendam pada larutan feriClorida .Tunggu sampai
bagian yang tidak terkena spidol hilang .
2. Setelah papan PCB sudah jadi, bersikan sisa tinta spidol dengan menggunakan kertas amplas halus kemudiaan libangilah pada bagian transistor( TR1, 2 ) membentuk kotak sesuai dengan bentuk transistor itu agar bisa menempel pada plat pendingin .
3. Pasanglah komponen-komponen pada tempatnya sesuai dengan gambar di atas, ingat kaki transistor jangan sampai terbalik .
4. Setelah semua komponen telah terpasang, sambungkan output dari pemancar 5 watt ke input Booster .
5. Di bagian output Booster, kamu pasang Dummy Load sebagai pengganti antena sekaligus untuk mengukur besaran daya keluaran dari Booster yang telah kamu rakit .
6. Sambungkan juga kabel tegangan DC 12V pada Booster, ingan jangan sampai terbalik kabel(+)
dan (-) nya .
7. Untuk mengoptimalkan daya keluaran pada booster, lakukan penyetelan dengan mentrim kondensator trimmer (C1, 2, 4, 5, 7, 8 ) dan merenggangkan Lilitan( L1, 4, 7 ) sampai kamu mendapat daya keluaran yang maksimal .
8. Bila Daya keluran Booster sudah maksimal, kamu bisa mencobanya dengan menyambungkan ke Antena Pemancar FM .
9. Untuk mengetahui kekuatan modulasi dan mengatur ketepatan antena, gunakan SWR Meter .
10. Untuk kabel antena gunakan kabel koaksial RG 58 atau RG 8 yang berimpedansi 50 ohm . merakit boster pemancar fm 50w.pdf
Ahmet UZUN on 18 Mar 12" Precision Power Supply © 1986 Doug Bedrosian and 2010 Tony van Roon "This Precision Power Supply is a nice addition on your workbench as primary, or in my case, a supplementary power supply. With zero to 40V and 2A with adjustable current limiting it will surely gets lots of use on your bench. On average the most amperage for a power supply someone needs is around two or three amps. The sensitivity for current limiting is fully adjustable. Have fun building!" Introduction: Test instruments are considered to be some of the most useful tools available when constructing a project. They are also considered to be the most expensive tools one could buy. For instance, a power supply of any quality and usefulness can range from several hundred dollars to several thousand dollars. The alternative to buying a power supply is to build one. The power supply in this article has a voltage range from 0 to 40V and a current range from 0 to 2 amps with current limiting set by the user. The quality of the supply is determined by the time and care the builder takes while constructing it. How It Works: The power supply is best understood when divided into separate parts. The first parts to look at are the two power supply sections. The output supply section consists of XFMR1, Br1, C1, and C2. They supply the appropriate voltage and current required at the output. The IC supply consists of XFMR2, Br2, and C3. The two power supply sections must be separate from each other because a floating ground is required for IC1. The next section is the voltage control. RV1 and R2 determine the operating point of a constant current source out of pin 3 of IC1. By varying RV1 the maximum output voltage will be set. Pins 8 and 9 are inputs to a high gain differential amplifier contained in IC1. By adjusting potentiometer P1 the voltage at pin 8 will vary; this will cause the voltage at the output to change until it is equal to the voltage at pin 8. Due to the high gain of the differenti
Cached
