This is a four board set to build a 8W RF output CW 20 meter transceiver that is VFO controlled. The receiver uses a MAR-2 front end with a SRA-1 mixer in the single conversion receiver. The transmitter uses MAR-2, 2N5109, 2N3866 and MRF433. The unit is mostly built with transistors and a LM386 audio amplifier. Diodes are used for the antenna switching.

This is a crystal controlled CW transceiver with separate crystals for the receiver and the transmitter. The transceiver is broad banded to cover 18 to 24 MHz. The receiver is built around a NE602 front end/ mixer, and two NE5532 ICs. The transmitter has five transistor stages with a MRF237 output device with 1.25 to 4 watts out depending on the frequency. The transceiver has a built-in audio sidetone.100

This is a two board set that makes a CW transceiver that covers a 50KHz segment of any one of the bands between 80 to 20. Thus it only is a single band radio, you build it for the band you want. It has a superhet receiver and uses a 10.7 MHz IF. The receiver section is built around two NE602s, one MC1350, MPF102 VFO, with a LM386 audio output. The Transmitter has NE602 and four transistors with a 2SC799 final and delivers 1.5 Watts.

The Twoer is a complete 2 meter 1 watt QRP AM transceiver with a tunable, single conversion, 10.7 MHz IF, superhet receiver and crystal controlled transmitter. The receiver uses a MFR901 preamp for .3uV sensitivity, a 10.7 IF filter, NE602 and MC1350. LM358, LM386, and TDA1015 IC's. The transmitter consists of three stages with an oscillator/tripler using a 48 MHz crystal. Other devices are LM358, LM386, TDA1015, and five transistors.

This is a two board project with the VFO/BFO on one board and the transceiver on the second board. The article describes how this single sideband transceiver can be built for one of the following bands: 160M LSB, 75M LSB, 40M LSB, 20M USB. The unit uses different VFO and IF frequencies for the different bands. The transmitter runs 1-2 watts with VN10KM and IFR510 transistors. The transceiver also uses (4) Ne602's, LM 386, LM741 and 7805 IC's.

Description: This is a single band QRP transceiver with an RF output of 4 to 5 watts that can be built for 80, 40,or 30 meter CW operation. The unit is crystal controlled, uses (5) 2N2222, 2N2219, IRF530, (2) MPF102, 2N3906, LM386, NE602.

Comment: N8FAM build this project and said it works great, he changes the transmitter driver transistor to a MRF115.

Description: The circuit designed by W5KQJ uses (3) LM411, LM380, LM741, (3) 2N2222. The board is 5 7/8" x 3"

Description: The project is built on a 6.5" by 2.5" double sided PC board using NE602, LF353, LF347, MC34113, 78L09, AND LM339 ICs. The 1750-meter band is 160Khz to 185Khz.

Description: This is a 40 meter transceiver on a 6.5" by 4" p c board, 2.5 to 3 watts out, with a line up of (6) 2n4400 transistors. The receiver uses 2n4393, (2) 2N3819, (2) 2N4400, LM386, and a 4 MHz crystal BFO. The transceiver is shown in the QST with the Unicounter from QST Dec00. (The Mini kit for the Unicounter is available from FAR Circuits)