Preamplifier for magnetic phono cartridges schematics


Posted on Feb 5, 2014

Circuit IC1 provides a do amplification of 40 dB, which drops to about 20 dB when the frequency rises above 500 Hz. To minimize the (resistor) noise and the load of the op amp at higher frequencies, the value of R3 is a compromise. The associated polystyrene capacitor, C2, should have a tolerance of 1 to 2%. To raise the 2-mV output of the dynamic


Preamplifier for magnetic phono cartridges schematics
Click here to download the full size of the above Circuit.

pick-up to line level at 1 kHz, linear amplifier IC2 has been added. This stage has a gain of 22 dB, so a signal of 250 mV is available at its output.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Stepping-motor-drive
Model Train And Slot-Car Controller
Four-Output Filter Circuit
lm317 variable power supply circuit project
Analysis of a Digitally Controlled Wien Bridge Oscillator
cr vacuum tube detector radio
bluetooth controlled relay
transistor based burglar alarm
Crystal pickup pre-amplifier circuit
Armstrong Oscillator using a crystal
Touch-type FET stepless dimmer



Top