If I put my notes here, I might be able to find them again later!
Very Simple Phono Stage VSPS200 20th anniversary mono edition
Posted 18th February 2017 at 04:53 AM by rjm
Updated 11th April 2017 at 01:02 AM by rjm (added board photo)
Updated 11th April 2017 at 01:02 AM by rjm (added board photo)
The classic VSPS slightly updated and fitted with a simple filtered Zener voltage regulator (Z-Reg).
Relaxed, spacious, easy to work on 80x100 double sided mono circuit boards.
The eagle .sch and .brd files, LTSpice .asc file, and Gerber zip package are all provided below.
Works fine with the NE5534A, or use whatever op amp you choose.
*****
revision and edit history:
200a initial release
200b changed to 70x90 hole spacing
200c C3 package changed to PCM37.5, updated C3 part listing in BOM to Kemet
200d changed regulator back to the Z-reg add R9,10 to BOM
200e move C1 and C2 capacitors 90 degrees
200f further layout tweaks
200g even more layout tweaks
200h are we done with this yet?
200i - skipped -
200j - skipped -
200k removed brestrict layer and re-did the power planes using only rect/split
200l - skipped -
200m cosmetic changes to input trace layout
Relaxed, spacious, easy to work on 80x100 double sided mono circuit boards.
The eagle .sch and .brd files, LTSpice .asc file, and Gerber zip package are all provided below.
Works fine with the NE5534A, or use whatever op amp you choose.
*****
revision and edit history:
200a initial release
200b changed to 70x90 hole spacing
200c C3 package changed to PCM37.5, updated C3 part listing in BOM to Kemet
200d changed regulator back to the Z-reg add R9,10 to BOM
200e move C1 and C2 capacitors 90 degrees
200f further layout tweaks
200g even more layout tweaks
200h are we done with this yet?
200i - skipped -
200j - skipped -
200k removed brestrict layer and re-did the power planes using only rect/split
200l - skipped -
200m cosmetic changes to input trace layout
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