This is an AM RF Amplifier Circuit for External Antenna which built using RCA 40468A FET. The detailed explanation and recomendation about this circuit, go to this page.
Wednesday, June 29, 2011
AM RF Amplifier Circuit for External Antenna
This is an AM RF Amplifier Circuit for External Antenna which built using RCA 40468A FET. The detailed explanation and recomendation about this circuit, go to this page.
Saturday, June 25, 2011
10dB VHF/UHF/FM Signal Amplifier
This is one of RF amplifier application which will boost the signal received by antenna. The circuit will boost UHF, VHF and FM signal. Nice choice for radio receiver and television.
10dB VHF/UHF/FM Signal Amplifier Features:
10dB VHF/UHF/FM Signal Amplifier Review:
We recently cut our ties with DirecTV and just went with more than the air digital signal. The RCA outside antenna worked great, but sometimes the picture pixelated. Getting study critiques and experiences of other people, I bought this signal amplifier and was blown away by the difference this little device made. We had extremely good HD quality, but this created it even better AND we found 4 much more stations that we weren't obtaining prior to utilizing this.
Better picture, no pixelation and much more channels! Great Deal!
Buy 10dB VHF/UHF/FM Signal Amplifier from Amazon.Com
10dB VHF/UHF/FM Signal Amplifier Features:
- Increases VHF/UHF/FM signals by 10dB
- Compensates for signal loss/weak signal that occurs during long cable runs or multiple TV/VCR connections
- For use with both RG6 and RG59 coaxial cables
10dB VHF/UHF/FM Signal Amplifier Review:
We recently cut our ties with DirecTV and just went with more than the air digital signal. The RCA outside antenna worked great, but sometimes the picture pixelated. Getting study critiques and experiences of other people, I bought this signal amplifier and was blown away by the difference this little device made. We had extremely good HD quality, but this created it even better AND we found 4 much more stations that we weren't obtaining prior to utilizing this.
Better picture, no pixelation and much more channels! Great Deal!
Buy 10dB VHF/UHF/FM Signal Amplifier from Amazon.Com
Wednesday, June 22, 2011
500W 27Mhz RF Amplifier Circuit
The following circuit is the 500W 27Mhz RF Amplifier circuit. The circuit build based MOSFET APT ARF448A, will give you very high gain for signal with frequency of 27MHz.
Schematic Diagram:
Parts List:
C1,C3 = 75-380 pF mica trimmer, ARCO 465
C4-C8 = .01 uF 1 kV disc ceramic
C9,C10 = .1 uF 500V disc ceramic
L1 = 6 uH. 25t #24 ga.enam. 0.5" dia.
L2 = 210 nH. 4t #8 ga. .75" id, 1" long
L4 = 2t #20 PTFE on .5" ferrite bead m=850
Q1 = APT ARF448A
R1 = 25W 5W non-inductive
T1 = Pri: 4t #20 PTFE, Sec: 1t brass tube on 2 hole balun bead. Fair-Rite #2843010302 m=850
High voltage MOSFETs are now available that combine the best practices from the RF world with the economy of the switchmode devices and packaging. They are available in mirror image pairs and the heat spreader of the plastic TO-247 package is connected to the source.
Download the aplication note for this circuit 500W 27Mhz RF Amplifier HERE
Schematic Diagram:
Parts List:
C1,C3 = 75-380 pF mica trimmer, ARCO 465
C4-C8 = .01 uF 1 kV disc ceramic
C9,C10 = .1 uF 500V disc ceramic
L1 = 6 uH. 25t #24 ga.enam. 0.5" dia.
L2 = 210 nH. 4t #8 ga. .75" id, 1" long
L4 = 2t #20 PTFE on .5" ferrite bead m=850
Q1 = APT ARF448A
R1 = 25W 5W non-inductive
T1 = Pri: 4t #20 PTFE, Sec: 1t brass tube on 2 hole balun bead. Fair-Rite #2843010302 m=850
High voltage MOSFETs are now available that combine the best practices from the RF world with the economy of the switchmode devices and packaging. They are available in mirror image pairs and the heat spreader of the plastic TO-247 package is connected to the source.
Download the aplication note for this circuit 500W 27Mhz RF Amplifier HERE
Subscribe to:
Posts (Atom)