FTdx-5000
No description available.
Four Foot Box Loop Antenna
Please find attached your copy of my four foot unamplified box loop. It will tune from 525 kHz to about 1710 kHz covering the entire Broadcast Band. The umbrella stand described in the article is the type you would use...
GE/MACOM MASTR-III VHF Station
This article provides conversion instructions for radio model GE/MACOM MASTR-III Group 2 (150.8-174 MHz) Repeater or Base, Combination Number SXS, to enable it to operate effectively in the 144-148 MHz range. It is important to note that this document is...
Circuit RF Amplifier
One of the most notable RF amplifiers documented is Wes Hayward's post-mixer amplifier in the Progressive Communications Receiver. It is recognized as a highly effective high-level RF amplifier, operating with a standing current of 50 mA, which allows it to...
Remote antenna for 60 kHz (WWVB) reception
Inside the outdoor box where the loop is mounted, the amplifier circuitry is displayed. The four capacitors located at the lower-left corner of the perfboard are used to broadly resonate the receive loop. In the office building, which is a...
GenesisRadio Transceivers
Later, the same pivot table will be utilized to list the parts for each of the eight phases in the build, organizing them into phase-specific bags of parts. The initial observation is that there are slight inconsistencies between the well-illustrated...
144MHz All Mode Transceiver
The primary feature of the transceiver described below is its simplicity while providing good performance at a minimal cost. The radio utilizes the MC3362 integrated circuit, which serves as an FM receiver with double conversion and includes nearly all the...
Schematic Diagram 250mW 16-dB VHF amplifier circuit
A high-efficiency, simple two-transistor VHF amplifier electronic circuit project can be developed using the provided circuit diagram. This VHF amplifier circuit achieves a significant efficiency with a gain of approximately 16 dB and does not require any tuning or alignment...
The CIRCLOMOS
Unfortunately, only RF amplifier devices are available, with the lowest frequency being 10 KHz.
The circuit in question pertains to RF (radio frequency) amplification, specifically focusing on devices that operate with a minimum frequency threshold of 10 KHz. RF amplifiers...
VHF Beacon
The 555 timer oscillator section can be removed and replaced with a preferred microphone modulating circuit to transmit audio to a television set, requiring minimal tuning. The schematics available on Schematics Depot were sourced from the internet and are presumed...