Preamp module with 2N5109

incl. VAT, plus shipping €48.74

In stock, shipped in 1 to 2 days


Top Features

  • Covers the complete shortwave spectrum (0.1 - 30 MHz)
  • Power supply DC 12 - 14 V
  • Gain 0 - 18 dB adjustable
  • High output power up to 26 dBm
  • High quality relays with 2 parallel contacts
  • Connectors: SMA sockets

Supply Scope

  • Preamp module

Technical description Preamp Module

This RX preamplifier module for shortwave reception with 2N5109 transistor is based on the W7IUV design. It can be used as a preamplifier for RX antennas (Beverage, DHDL, Flag etc.). The gain is up to 18 dB, a variable attenuator (ATT) is built in, so the gain can be adjusted exactly as needed. In addition, the proper transistor bias voltage can be selected with a multi-turn potentiometer. Two relays provide bypass switching when no supply voltage is applied.

The module is completely assembled, without a case.

Application description Preamp Module

The preamplifier is designed for receive antennas (i.e.: no transmit operation allowed!). It can be used as a buffer or small driver amplifier.
Since the board is only 50 x 50 mm small, it can also be accommodated in very small housings.
Technical Data
Product Name Preamp Module
Amplification (dB) 18
Impedance (Ω) 50 Ω, 75 Ω
Supported Bands 160m, 80m, 60m, 40m, 30m, 20m, 17m, 15m, 12m, 11m, 10m
Current Intake (A) 0.180 A
Supply Voltage [V] 12 - 14 V
Frequency Range 0.1 - 30 MHz
Connector A SMA Socket
Connector B SMA Socket
Size W x H x D 50 x 50
Preamp module with 2N5109
Preamp module with 2N5109

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incl. VAT, plus shipping €48.74

In stock, shipped in 1 to 2 days

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