IC-756 Pro III on AM circuit | Next Electronics

KC2ZPLs Web Design and Electronic Home circuit

KC2ZPL Web Design, electronics, HAM radio, CW, homebrew construction, general electronics, high voltage, experimenter's web page. The KC2ZPL web page serves as a comprehensive resource for individuals interested in various aspects of electronics and amateur radio (HAM radio). It covers a...

A Regenerative Receiver with AGC for 80 and 40 Meters

Here is a dual-band regenerative receiver that originated from encouraging communications with Jerry (K9UT) and another individual named Harvey, who constructed the original AGC-80 and its experimental successor, the AGC-80/30. Jerry has expressed his satisfaction with both receivers, noting their...

RF Field Strength Meter Circuit

A sensitive and reliable RF field strength meter is an invaluable instrument in amateur radio and radio-controlled model applications. This field strength meter is utilized to align antennas for optimal gain and to determine the transmission range of radio controllers....

Conversion Receiver For 160 To 20M Circuit

Note that T1 and T2 are TOKO components, including part numbers for the coils T1 and T2. The direct-conversion receiver shown utilizes a double-tuned input network made from readily available TOKO coils. IC1, an NE602, serves as a voltage-controlled oscillator...

RF Inductance adaptor for multimeter

The circuit's operating principle is that if you make a pulse width proportional to inductance, and keep the pulse frequency and amplitude constant, and then pass the pulse through a low pass filter so that only the average voltage comes...

AM IF filter

Typical QRP receivers include Direct Conversion (DC) and simple Superheterodyne types. These receivers often have quite a wide AF bandwidth which can make intelligibility somewhat restricted, especially under difficult QRM conditions. Many commercial amateur transceivers also suffer from this, e.g.,...

RADIO CIRCUIT DIAGRAM

Radio Circuit Diagram Manual PDF Download. The radio circuit diagram manual provides a comprehensive guide for understanding and constructing radio circuits. It includes various circuit schematics, components specifications, and operational principles essential for both beginners and experienced engineers in the field...

Dave Richards AA7EE

As a follow-up to the previous post, it was discovered that the Sony SRF-59, although inexpensive, offers surprisingly good performance due to its creative receiver architecture. Research was conducted on external antennas to improve reception of weak stations. Among the...

75 meter qrp ssb transceiver

The transceiver switches the four-element 1500-ohm crystal band-pass filter (BPF) connections between the inputs and outputs of two SA602 integrated circuits to reverse the signal flow for receive/transmit (R/T) operation. Since no intermediate frequency (IF) amplifier is utilized in this...