ATMA SPHERE SCHEMATIC for a UV-1 M/M.......


I have a Atma Sphere UV-1 without the Moving Magnet pre-amp section......I need a schematic so I can complete this project.....I don't mind paying a fair price for this schematic.......Let me know    Will
autospec
Ralph    I would hope that the work could be a little more technical than the description over the phone.....But what do I know........Why is there never a simple answer to a simple question........I will spend more time trying to get a schematic than I will ever spend doing the work........Who is served ??
+1 Jetter!
And, it seems Ralph did try to help you. Though maybe what you are asking is proprietary.
B
We simply don’t have schematics that look at that good for public consumption.

As some of you may know, the UV-1 is based on the mods/updates we would do to a Dynaco PAS-3.

So the phono stage is very similar to that of the PAS-3. The differences are as I explained to Will:
1) we don’t employ the cathode to cathode feedback resistor
2) 12AT7s are used instead of 12AX7s
3) a cathode bypass cap is employed on the 2nd stage of gain
4) only one output coupling cap is used and the feedback is connected to the output of that. A 10K resistor is then in series with the output of the circuit.

So if you can find a PAS-3 circuit online and apply these changes, then you can build this circuit.
There are more issues that just a board, which of course won't fit in a UV-1......Power supply hook-up and values, parts placement for low noise problems.......Sometimes I have to ask myself why I would even ask  ??       I'll just buy a PAS-3 and use it.........