In Reply to: The Lazarus is based on a Last Pas article in Audio Amateur; its not a Vacuum State design! posted by Ralph on December 21, 2016 at 11:56:57:
If we're talking about the same preamp, Allen Wright said:
"That unit's design was a direct ripoff from me"
Link to Allen's Asylum post is here and also below.
Here's the Last PAS phono (with David Vorhis corrections indicated), line stage and filament supply schematics, if anyone is looking for them. I may have the Vorhis / Jung regulated B+ schematic too, if someone needs it, although I showed it to Allen Wright once, and he wasn't too fond of it.
Note that for C43 and C44 in the filament supply, I use two 120,000 µF caps. I've had several people tell me that much capacitance shouldn't make an improvement, but it does.
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Follow Ups
- Not according to the late Allen Wright - 1973shovel 15:25:56 12/22/16 (6)
- That might be - Ralph 08:12:27 12/23/16 (5)
- I have no investment either way - 1973shovel 08:26:59 12/23/16 (4)
- Neither do I... - Ralph 08:44:16 12/23/16 (3)
- I posted the Last PAS linestage schematic on DIY Tubes Asylum once - 1973shovel 09:10:14 12/23/16 (2)
- +1 nt - Ralph 09:45:19 12/23/16 (1)
- Does that +1 mean - 1973shovel 13:36:03 12/24/16 (0)