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Old 4th January 2012, 10:10 PM   #351
Cobra2 is offline Cobra2  Norway
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I would be interested in one...

Arne K
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Old 4th January 2012, 10:13 PM   #352
mlloyd1 is offline mlloyd1  United States
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PMA:

impressive curves. i guess i'm one of the few folks that admits to still using a mm cartridge.
btw, you must have a fairly substantial stash of the 2SK413/2SJ118 devices.
:-)

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Old 4th January 2012, 10:18 PM   #353
PMA is offline PMA  Europe
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In fact I will have to seek replacement parts soon, I have several tips that are still available.
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Old 8th February 2012, 02:54 PM   #354
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Pavel, do you have an update on this project?
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Old 9th February 2012, 06:58 AM   #355
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Joe,

several units were produced and they are working and sounding well. But, for the reason of my very extended activities in the field of industrial automation I have to restrict my audio activities for the period of 1 year at least. So, no PCBs or modules for this project would be available now.

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Pavel
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Old 15th July 2012, 04:19 PM   #356
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Hello solid state! Just wanted to save this thread.
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Old 15th July 2012, 06:06 PM   #357
PMA is offline PMA  Europe
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Okay, I will
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Old 20th July 2012, 11:02 PM   #358
mlloyd1 is offline mlloyd1  United States
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almost a week and no comments ...
amazing!

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Old 23rd July 2012, 01:36 PM   #359
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almost a week and no comments ...
amazing!

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Old 9th August 2012, 10:48 AM   #360
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Quote:
Originally Posted by PMA View Post
Gentlemen,

I would like to open a discussion on this topic. MC phono preamp, solid-state.

- active/passive equalization
- discrete/opamp
- BJT/JFET, which position
- power supply, active PSU filter
- enclosure, shielding properties
- wiring, grounding
- SE/balanced
also of interest for the associated line head amplifier (Pre-Pre) of low output/low impedance moving coil cartridges is follow:
Which topology is the best?
Common base (low input impedance) or common emmiter/common source (high input impedance) ?
I prefer clearly the first mentioned (tested e. g. by Audio Technica ART1 (Art ONE), Ortofon Rohmann, several Lyras and AT-OC9 (all MK-versions).
In this case I start follow thread:
Commercial Pre-Pre Amps for Moving Coil Cartridges (MC Head Amps) in Common Base

Last edited by tiefbassuebertr; 9th August 2012 at 10:50 AM.
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