In Reply to: Want to build a MC head amp -- simple design posted by jedrider on May 18, 2012 at 12:13:06:
Step up transformers (SUTs) are the simplest method. There's no fussing with NFB to linearize SS circuitry. Tubes simply aren't quiet enough for service at μV. signal levels. :>( S/N ratio is EVERYTHING, at these tiny signal levels.
Sowter (www.sowter.co.uk) of England's model 9570 is quite compact and frequently can be tucked inside the phono preamp.
If you want to stay close to home, CineMag of Calif. offers their model CMQEE-3440APC.
Eli D.
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Follow Ups
- RE: Want to build a MC head amp -- simple design - Eli Duttman 17:35:46 05/18/12 (16)
- Last question about using step-up transformers - jedrider 20:28:27 05/18/12 (2)
- RE: Last question about using step-up transformers - Eli Duttman 20:41:37 05/18/12 (1)
- RE: Last question about using step-up transformers - jedrider 07:37:56 05/20/12 (0)
- I'll second the CineMag CMQEE-3440A - 1973shovel 19:41:18 05/18/12 (12)
- RE: I'll second the CineMag CMQEE-3440A - jedrider 20:24:18 05/18/12 (11)
- The load teh MC should see should be at least 10 times it's own coil impedance. - Timbo in Oz 23:32:06 05/18/12 (10)
- RE: The load teh MC should see should be at least 10 times it's own coil impedance. - Naz 06:37:37 05/20/12 (5)
- Openness is what MC's do, why throw it away? - Timbo in Oz 15:28:09 05/20/12 (4)
- Are we arguing the same thing? - Naz 16:21:44 05/20/12 (3)
- Sorry, we had both ends of it! - Timbo in Oz 17:37:53 05/20/12 (2)
- No probs, I thought we actually saying the same thing ... - Naz 19:17:05 05/20/12 (1)
- I used to have a Verion better than the OTHER SUT I still use, an AT 650 - Timbo in Oz 22:35:06 05/20/12 (0)
- RE: The load teh MC should see should be at least 10 times it's own coil impedance. - TimFox 06:57:06 05/19/12 (3)
- RE: The load teh MC should see should be at least 10 times it's own coil impedance. - Eli Duttman 14:05:40 05/19/12 (2)
- RE: The load teh MC should see should be at least 10 times it's own coil impedance. - TimFox 13:21:46 05/20/12 (0)
- RE: The load teh MC should see should be at least 10 times it's own coil impedance. - Naz 06:43:32 05/20/12 (0)