20W VHF Linear Amplifier 2SC1946 50 MHz

guclusat

Tanınmış Üye
Süper Moderatör
1946a.png

This VHF linear amplifier works for 50 MHz frequency using 2SC1946A with power output about 20 Watt. It needs input 30mW and output 25W for 150 Mhz. It seems can be used for 144 Mhz without modification. There are Power IC and 2SC1946A with low-pass filter on the board.

Some Experiences
I have checked Mitsubishi Catalogue and found it is 175 Mhz(ft), 3W input - output 30W(at 13.5Vcc), Gp10dB. I reffered Linear Amplifier Hand Book for deciding capacitors and coils. I made PCB with cutting by cutter knife and removing by heat with solder tool.

20W_VHF_Linear_Amplifier_2SC1946_50_MHz.jpg
1946a2.jpg
 
Son düzenleme:
Geri
Yukarı