preamp

preamp

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• Receiving antenna for low bands  ^updated - K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter
  [ Hits: 19594 | Votes: 12 | Rating: 7.91 ]

• HiZ-Antennas - High impedance amplifiers for shortened vertical antennas, Array matched and Optimized 15dB Preamplifier
  [ Hits: 858 | Votes: 2 | Rating: 6 ]

• Remote Control of Mast Mounted Equipment - This article presents a method of controlling preamps, antenna switching and polarization switching remotely without the use of control cables.
  [ Hits: 1651 | Votes: 1 | Rating: 10 ]

• Attenuators and Preamps - How to get the most from attenuators and preamps
  [ Hits: 2221 | Votes: 3 | Rating: 3 ]

• Transistor Audio Preamplifier Circuits - Design Guidelines for Bipolar Transistor Audio Preamplifier Circuits By Mike Martell N1HFX
  [ Hits: 1815 | Votes: 3 | Rating: 4.33 ]
• Mic Pre Ampllifier - A microphone preamplifier schematic for hand-helds by ON6MU
  [ Hits: 1671 | Votes: 3 | Rating: 6 ]
• Low Power LF Amplifier - ON6MU Low Power amplifier
  [ Hits: 854 | Votes: 1 | Rating: 8 ]

• SV1BSX Homebrew Corner - Offer a wide range of homebrewing projects mainly for VHF UHF operations. From vhf antennas to preamplifiers, chargers and power supplies
  [ Hits: 1514 | Votes: 9 | Rating: 9.78 ]

• Kenwood MC-50 modification - MC-50 microphone modification for high emphasis, connecto kenwood ts-50 to kenwood radios.
  [ Hits: 4088 | Votes: 12 | Rating: 7.4 ]

• 2 Meter GaAs FET Preamp - KD9JQ 2 meter GaAsFET preamplifier by KD9JQ
  [ Hits: 5875 | Votes: 5 | Rating: 6 ]
• Designing Op Amp Audio PreAmplifiers - Design guidelines for Op Amp audio preamplifier circuits by Mike Martell N1HFX
  [ Hits: 1642 | Votes: 4 | Rating: 3.25 ]
• W7IUV Low Band Preamp - Pre amplifier using a 2N5109 for the 160 meters band
  [ Hits: 2549 | Votes: 7 | Rating: 6.43 ]
• Radio Preamplifier for 2 mtr reciever - 20db gain 144 Mhz preamplifier by Harry Popov LZ1BB
  [ Hits: 1991 | Votes: 0 | Rating: 0 ]
• LF/MF Preamplifier - A universal LF/MF preamplifier by Lyle Koehler, K0LR
  [ Hits: 2164 | Votes: 2 | Rating: 4.5 ]
• Wideband PreAmp's for HF/VHF/UHF - Wideband VHF/UHF/SHF monolithic PreAmp based on MARx-series by ON6MU
  [ Hits: 3207 | Votes: 4 | Rating: 8.75 ]
• General purpose RF Wideband PreAmp - General purpose RF Wideband PreAmp based on BSX-20 transistor with a frequency range 14-550 MHz
  [ Hits: 2405 | Votes: 2 | Rating: 5.5 ]
• Improving Receiver Noise on 50 MHz - Tests on a preamplifier for 50 MHz installed right at the feedpoint of the antenna.
  [ Hits: 990 | Votes: 0 | Rating: 0 ]
• 144 MHz Antenna Pre-Ampilfier - Electronic circuit and components layout fot this VHF Preamp
  [ Hits: 3270 | Votes: 5 | Rating: 6.4 ]
• 137 kHz antenna preamplifier - A simple 137 kHz antenna preamplifier to make your FT-817 (and others) useable on 2200m band.
  [ Hits: 1184 | Votes: 3 | Rating: 6.67 ]
• Simple Cheap MMIC Preamps - Who needs a GaAsFET? Tuning, constructions and Packaging by Paul Wade
  [ Hits: 686 | Votes: 0 | Rating: 0 ]

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