UAA170 LED Drive (CB21891E)

This UAA170 application circuit was taken from Siemens' own integrated circuits manual from 1976. The maximum supply voltage is 18 V.

| Clique na imagem para ampliar |

Low Capacitance FET Amplifier C (CB13221E)
This high impedance and low capacitance buffer employs a junction FET that can be BF245 or...
AGC for tape recording (CB7302E)
This circuit was found in an American documentation from 1966. The transistors are from that time...
VHF Preamplifier (CB5938E)
This circuit for the 85 to 95 MHz band has a gain of 15 dB. We find it in a 1980s documentation. The...