RF Preamps
| File | Description |
| Shortwave antenna amplifier.pdf | Shortwave antenna amplifier |
| Design of ultra low noise amplifiers.pdf | Design of ultra low noise amplifiers |
| LNAdesign.pdf | Design of Low Noise Amplifiers by Prof. S. Long, 2007 |
| 10kHz-30MHz_Ant_Preamplifier.gif | 10kHz-30MHz Antenna Preamplifier |
| Multiband_JFET_LNA_N6CA.gif | Multiband JFET LNA by N6CA |
| Noise_Reduction_Active_Antennas_WD4PLI.gif | Noise Reduction Active Antennas by WD4PLI |
| Loop_Ant_Differential_FET_LNA.gif | Loop Antenna - Differential FET LNA |
| Loop_Ant_Push-Pull_FET_LNA.gif | Loop Antenna - Push-Pull FET LNA |
| Loop_Ant_Wideband_LNA.gif | Loop Antenna - Wideband LNA |
| Receive_Loop_Antenna_Preamplifier.gif | Receive Loop Antenna Preamplifier |
| Regenerative_LNA_for_Loop_Antenna_W2IMB.gif | Regenerative LNA for Loop Antenna by W2IMB |
| Active Antenna Amplifier Kit.pdf | Active Antenna Amplifier (model AAA-1C) for 87.00 € |
| Balanced_Loop_Preamp.pdf | Balanced Loop Preamp by Lyle Koehler, KØLR |
| High-Gain_Preamp.pdf | High-Gain Preamp by Lyle Koehler, KØLR |
| Low Noise_VHF Aerial Amplifier.pdf | 1 - 300 MHz, 22 dB gain, NF 1.6 dB. Elector, July/August 1977 |
| Wideband RF Preamplifier.pdf | 1 - 30 MHz, 22 dB gain. M. Tooley G8CKT & D. Whitfield G8FTB, Practical Wireless, January 1980 |
| A 28 Mhz Preamplifier.pdf | 22 dB gain over the 28 MHz band. J. Harris G3LWM, Practical Wireless, August 1982 |
