Like many of our hosts, Matthew is an aficionado of vintage technology. In this project, Matthew is completely rebuilding a Califone 1400 series portable phonograph from the early 1980s to improve its playback quality. The first obstacle he has to overcome is rebuilding the preamplifier circuit to bring the raw phono signals from the tonearm up to RIAA line level, but he's having a little trouble with the op-amp chip. How hard could it be to build a simple preamp from scratch?https://bit.ly/3HqJHWG

#0:00 Welcome to element14 presents
#0:42 Phonograph
#2:50 NE5532 Preamp Circuit
#5:02 What Went Wrong?
#6:53 The Test!
#7:52 Give your Feedback

Engage with the element14 presents team on the element14 Community - suggest builds, find project files and behind the scenes video: https://bit.ly/3tmdewv

Visit the element14 Community for more great activities and free hardware:

Tech spotlights: https://bit.ly/3qPrDhM
RoadTest and Reviews: https://bit.ly/3pV5Bux
Project14: https://bit.ly/31wbnJY

#preamp
#opamp
#phonograph