Home Amp/Preamp Asylum

Looking for a new Amp or Preamp? If you're after tubes, post over here.

RE: I am pretty sure it cannot work...

There would unquestionably be output. My only question is whether I could typically expect to achieve any enhancement in the common mode interference rejection.

This is why I mentioned the schematic for the 651P. Look at page 10 in the pdf in the link. It's the 640p but same thing.

Take the 640p moviong coil inputs, for example, there are 470ohm resistors off pre in left plus to ground and another 470r from pre in right plus to ground. The MM inputs are similar but with 560ks.

If you put coil plus to mc pre in right plus and coil minus to mc pre in left plus tou have effectively placed a 940 ohm in parallel with one coil of your cartridge.

That may not be your carts optimal loading, but if your stuff works, that 970 ohm resistor will get a voltage across it and cause the preamp to function when you play a record, if the premp is working and turned on.



Edits: 01/17/17

This post is made possible by the generous support of people like you and our sponsors:
  The Cable Cooker  


Follow Ups Full Thread
Follow Ups
  • RE: I am pretty sure it cannot work... - Ugly 22:55:40 01/17/17 (0)

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.