The Audio preamplifier with dual recording using IC BA3420AL. The Audio preamplifier with dual recording using IC BA3420AL. It has an internal switch for switching between playback head, mic and radio input modes, and also includes a bias oscillator and regulated voltage source for radio use. All control is possible with one external switch, allowing […]
Posts tagged BA3420AL
Two way radio
Two way radio 27MHz Citizens Band Using TR SC1675, SC828, SA564, SA715,SC1383, SC1909 and IC TA7205 AUTOPARCH SELECTOR DTMF CIRCUIT USING MPS 1212, 2N2222 CB RADIO Communications on Eleven metre CB channels and freeband including information on Citizens Band radio models. This Radio Interface Regulation covers 27 MHz Citizens Band radio equipment. … 27 MHz […]
Headphone audio circuit using TL072
Headphone audio circuit using TL072 Headphone Amplifier Circuit using Op-Amp circuit using TL072
CIRCUIT DIODE SWITCHED SYNTHESISER
Now I shall introduce my somple diode counter. To start off with, the MC145152-2 A-counter can have a count of 512, 1024, or 2048. This means that a 12.8MHz crystal, divided by 1024, will give you a reference frequency of 12.5kHz. You could alternatively use 6.4MHz divided by 512. Not many options there! You still […]
Class D Audio Amplifier Circuit
Class D Audio Amplifier Circuit Class D Audio Amplifier Circuit using stk4372 Class D Audio Amplifier Circuit Class D Audio Amplifier Circuit
