Description: This is the companion receiver to the Micronaut QRPp transmitter that is designed for the low end of 40 Meters. The receiver is a single stage direct conversion using a 7.048 MHz crystal, NE612, and LM380 on a 42 by 22 pc board.
Description: The receiver is built around a MC13135 IC with a PLL LO SYNTHESIZER using MC145170P2. The computer interface and control is done with a PIC16C73 uP which also drives a 16 character 2 line LCD display, an Optrex DMC16207N-B. The PC program to run Windows 95/98 and the source code for the PIC uP is available under hag2mrx.zip from ARRL http:/www.arrl.org/files/. Other ICs required: LM2931AZ and LM386.
Description: This is a well designed double conversion AM/CW/SSB receiver that covers 6.5 to 7.5 Mhz. The design uses an SBL-L for the two mixers, an MAR-1 for the front end amplifier, two MC1350 IC's, an NE602 for the detector and three stages of MC1458 for the audio. The project is built on two boards. If you are looking for a good receiver to build, this is the one
Description: See http://www.electronics-tutorials.com/receivers/regen-radio-receiver.htm for complete details.
Description: Check out this site for the details to build a DGPS pocket receiver. http://home1.gte.net/clseng/dgps/dgps3.htm. THE P C BOARD COMES WITH THE MC145157P2 PLL IC.
Description: This app note shows how a receiver can be made with a SA602 and a SA604, from antenna to low level audio. The board is 3"x3" double sided, non plated-thru holes. If you like playing with receiver designs, this is the board to build this double conversion receiver.
QST SEPT 00
Description: HF regen receiver that uses 2N2222 and LM386.
Description: see home.att.net/~wb8wfk/foxfinder80.htm
QEX Sep/Oct 00
Description: The board can be used to make a 38-54 MHz, 88-180 MHz, or a 118-136 MHz AM or FM receiver. The receiver design contains a squelch circuit. Project uses 2 J310 FETs, a 2N2222 transistor, and a LM386N audio amplifier. This is another quality project from Charles Kitchin.
73's Nov 00
Description: This is the ARDF receiver for 3.5 Mhz fox hunting. Circuit uses (2) NE602A, MPF102, MC1350, AND LM386. See home.att.net/~wb8wfk/foxfinder80.htm for more details.
QST Mar 01
Description: this is a simple TRF receiver for tracking the source of HF RFI and operates around 136 MHz. The circuit consist of MRF901, J310,and LM358 and operates from a 9 v battery.
Description: This is the Colpitts regenerative receiver. The circuit uses 2N3904, MPF102 78L05 and LM386 IC. The receiver covers 5 to 15 Mhz.
Description: The project is assembled on a 3.125" x 2.5" PC board. The circuit uses 2N4416 FET and a TL431CPL Voltage controlled Zener. The radio tunes the FM broadcast band. http://www.somerset.net/arm/fm_only_one_transistor_radio.html
Customer Comment: I built the Armstrong Update regenerative receiver from Dave Cripe's article. As promised, the 1496 detector produced uncommonly smooth regeneration control and his use of a 324 op amp as both an audio filter and a push-pull gives adequate, clean audio. Like other regenerative circuits, this one is sensitive to its surroundings and benefits from good shielding and layout after the board is working. The Far Circuits board worked the first time but care should be used to avoid control wires crossing each other as they leave it.