Tape Head Pre-Amplifier


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.



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


For more detail: Tape Head Pre-Amplifier

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Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

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