Stereo Tape Head Pre-Amplifier Circuit

STEREO TAPE HEAD PRE-AMPLIFIER (1)

The circuit is built around a popular Sanyo’s stereo head preamp IC LA3161. Low electrical signals from the playback heads are fed to pins 1 and 8 of IC1 via DC decoupling capacitors, respectively. Components between pins 2 and 3 and pins 6 and 7 provide adequate equalization to the signals for a normal tape playback.
Specifications:

Power supply: 9 ~ 12 VDC @ 20 mA
Output power: upto 200 mW
Input Resistance – 100 KΩ (Typ), Load Resistance – 10 KΩ (Typ)
Low noise, good ripple rejection owing to the on-chip voltage regulator
Berg pins for connecting power supply, input and output
Power-On LED indicator
Four mounting holes of 3.2 mm each
PCB dimensions 49 mm x 38 mm


STEREO TAPE HEAD PRE-AMPLIFIER SCHEMATIC

STEREO TAPE HEAD PRE-AMPLIFIER (3)


PCB LAYOUT

STEREO TAPE HEAD PRE-AMPLIFIER (2)

Tape_Head_Pre-Amplifier_D-1


BOM

STEREO TAPE HEAD PRE-AMPLIFIER (1)

Leave a Reply

Your email address will not be published.