Tape Head Pre-Amplifier

  • Rajkumar Sharma
  • 29466
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  • medium
  • Tested

Tape_Head_Pre-Amplifier_A

This project is a tape head Pre-Amplifier circuit.

Description

The circuit is built around a popular Sanyo’ 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 normal tape playback.

Specifications:

  • Power supply: 9 ~ 12 VDC @ 20 mA
  • Output power: up to 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

Schematic

Tape_Head_Pre-Amplifier_B

Parts List

Tape_Head_Pre-Amplifier_E

LA3161 Datasheet

LA3161-D

PCB

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JRex

sir ! i want to make a lapel-like project. could you recommend something ?

wthxx

good day, is there any circuit for tape head for erasing tape?

Vijay

I want to buy this pre amp circuit. How can I buy?

Mikeygee77

How much for 15pcs? And how long would they take?

Ramesh

Kindly send the price for 15pcs. I need.

Luciano

In the project for the stereo tape head preamp I can’t find the PCB diagram!

Yugandhar

Sir can i use circuit for as pjonopreamp

Tuipssi

Hi, what amp will be good for this preamp? I’m trying with the lm386 but I have to put two of them in serie to hear something, and with a little perturbation the sound starts to go crazy. I’m very newbie on this. thanks

Mikeygee77

How much would they cost if I ordered 15+ pieces? And how long would they take to build?

Meaxy

Do you have the same kind of tape head pre amplifier but in a smaller size? It’s for a Walkman prototype

Meaxy

Can we connect the tape head, a 3.5 mm jack and use it on a 3,7 V battery?

Meaxy

Do you have an another Tape Head Pre-Amplifier can work on 3V Batteries and a 3.5 mm jack output too?
Sincerely
Meaxy

Kah

Could I get a quote for order of 15?

Ali

What equalization is this amp for? Meaning speed — 7.5, 3.75 ips? Can it be modified for cassette playback?

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