Institute Newton C. Braga

Circuit Bench

Varicap Modulated FM Oscillator (CB13348E)
This circuit can serve as the basis for a small FM transmitter with varicap. We found it in a...
UHF Booster For TV (CB12592E)
This circuit amplifies the signals in the UHF band starting at 470 MHz, reaching just over 900...
150 mW BTL Amplifier TDA7052 (CB15399E)
This low power amplifier circuit for speaker or phone is from the Philips Databook of 1990. The...