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27MHz Walkie Talkie with LM386 - zpag.net
http://www.zpag.net/Electroniques/English/Radio/27mhz_walkie_talkie_with_lm386.html
27MHz Walkie Talkie with LM386 lectronique / Electronic. Recherche personnalisée
BH1RBG RF Lab - 27Mhz: AM RX/TX Experiment
https://sites.google.com/site/linuxdigitallab/rf-ham-radio/27mhz-walkie-talkie-experiment
another choice is make the 27.095 crystal work in fundamental mode, then multiply the VXO up to 27mHz, but much more complexity. 2. To implement Amplitude Modulate, few choice: the Modulation transformer is give up, i don't have it. use A LM386 as Collect supply is attractive, but i make an more simple way, the T3, a voltage follower. left the amplifier the audio work to be …
The Radio
http://www.zpag.net/Electroniques/English/Radio/The_radio.htm
27 MHz transmitter - receiver 01: 27 MHz transmitter - receiver 02: 27 MHz transmitter - receiver 03: Wireless Doorbell: 27MHz Walkie Talkie with Call: 27MHz Walkie Talkie without Crystal: 27MHz Walkie Talkie with LM386: 27MHz Walkie Talkie without Crystal 02: 27MHz Walkie Talkie with Crystal: 1W CW transmitter
27 MHz Radio Transmitter using single Transistor
https://circuits-diy.com/27-mhz-radio-transmitter-using-single-transistor/
This 27 MHz Receiver circuit operates with the help of an NTE123A, an NPN sound amplifier transistor. The NTE123A enhances the sound signals to the desired value. The circuit utilizes the crystal socket, walkie-talkie type antenna and a mic in the circuit.
27MHz Walkie Talkie - electronics-diy.com
https://electronics-diy.com/27mhz-walkie-talkie.php
This classic walkie talkie consists of both 27MHz transmitter and receiver all in one circuit. Nearly all the components in the 4-transistor circuit are used for both transmitting and receiving making it simple to build and economical at the same time. The frequency-generating stage only needs 27MHz crystal to be removed and it becomes a receiver.
LM386 Audio Amplifier Circuit
https://www.apogeeweb.net/circuitry/lm386-audio-amplifier-circuit.html
LM386 is a kind of audio integrated amplifier. It has the advantages of low power consumption, adjustable internal chain gain adjustment, large power supply voltage range, few external components and low total harmonic distortion. Therefore, LM386 is widely used in recorders and radios, mainly in low-voltage consumer products. LM386 features ...
Scematic Machine Inside
https://scemainside.blogspot.com/
Wednesday, 27 September 2017. ... 27mhz 49 Mhz Walkie Talkie - How To Make Circuit Of Walkie Talkie Complete With Both Diagram. ... Ponent Lm386 Audio Amplifier Circuit Diagram Simple Interpdf Easy Wireless With Ringer Transistor Telephone - Audio Amplifier Circuit Daigram Pdf File.
YO3DAC - Homebrew RF Circuit Design Ideas
https://www.qsl.net/va3iul/Homebrew_RF_Circuit_Design_Ideas/Homebrew_RF_Circuit_Design_Ideas.htm
27 MHz Walkie-Talkie. 40m-20m CW Transceiver - LZ3AI. 80m All-2N2222 CW Transceiver - OK2BEU. 144 MHz QRP CW Transceiver. 144 MHz Simple Walkie-Talkie. 144 MHz AM Walkie-Talkie - YO3AVE. 2m PLL FM Transceiver - DC1YB. 20m CW Transceiver - DC1YB. 144 MHz 2-channels Walkie-Talkie - DC1YB. 7 MHz CW Transceiver - W7EL
Homebrew RF Circuit Design Ideas - HA5KHC
http://konstruktor.ha5khc.hu/linkgyujtemeny/linkgyujtemeny.htm
Homebrew RF Circuit Design Ideas. Transceivers. Receivers. · 80m 5W CW Transceiver. · 7 MHz QRP Transceiver - DL5NEG. · 27 MHz R/C Transceiver. · 49 MHz Walkie-Talkie. · 432 MHz Data Transceiver. · QRP SSB Transceiver.
Walkie-Talkie Arduino Shield-part 1 - Radiojitter
https://www.radiojitter.com/walkie-talkie-arduino-shield/
Phase 1: We started with an initial walkie breakout board, An LM386 Audio Amplifier board, MAX9812 mic pre-amplifier module with mic and speaker and Arduino Uno. We could transmit and receive VHF signal. Phase 2: We included a standard PTT Mic set to replace both external speaker and mic.
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