Home » Audio » Craftsmen » Preamp for Low Output Moving Coil Cartridges
Preamp for Low Output Moving Coil Cartridges [message #77272] Tue, 23 July 2013 21:43 Go to previous message
gofar99 is currently offline  gofar99
Messages: 1949
Registered: May 2010
Location: Southern Arizona
Illuminati (5th Degree)
Hi Everyone, I didn't want everyone to think I only do tubes (about 95% true though) so I did an IC project. I wanted to see how quiet I could get a preamp for low output moving coil cartridges (LOMC). So with a bit of studying and a bit of bench tweaking I came up with one. Response is as flat as I can measure between 10HZ and 30K IAW the RIAA curve. S/N above 100HZ is -96 dbv. At 20 HZ (worst case) it is -89 dbv. Very very quiet. The gain is about 58-59 db and input impedance is 200 ohms. The gain and input impedance can be adjusted rather easily. The sound is quite nice and the preamp could easily be the only one someone might want.

index.php?t=getfile&id=1218&private=0index.php?t=getfile&id=1219&private=0index.php?t=getfile&id=1220&private=0index.php?t=getfile&id=1221&private=0


Good Listening
Bruce
 
Read Message
Read Message
Previous Topic: Sicphones Headphone Amplifier Kit
Next Topic: piezo pick up issue.
Goto Forum:
  


Current Time: Thu Nov 21 19:29:29 CST 2024

Sponsoring Organizations

DIY Audio Projects
DIY Audio Projects
OddWatt Audio
OddWatt Audio
Pi Speakers
Pi Speakers
Prosound Shootout
Prosound Shootout
Miller Audio
Miller Audio
Tubes For Amps
TubesForAmps.com

Lone Star Audiofest