I have the manual and the instructions for biasing the tubes. Email with your address.
I bought an LA-200 (based on the serial number the first unit made) about a year ago from the person who originally reviewed the preamp in PF (the review is on the Joule website). I sent the preamp to Jud and he upgraded it to an LA-100 MkIII. Other than cosmetics, the LA-200 and LA-100 were pretty similar. The LA-200 was top of the line until the signal path circuitry was changed and the LA-100 MkIII was released (6350 Mu follower replaced the 5751). The main differences were in the output impedance, where the LA-200 was not recommended for use with amps under 100k ohm input impedance, and gain where the LA-200 had slightly more gain than the LA-100 (although on both preamps this was adjustable, the LA-200 uses 4 rocker switches in 2db increments and the LA-100 has jumpers for 2 settings).
The only other difference was the power supply tubes where the 10EM7 tubes found in the LA-200 became obsolete and instead the 6EM7 was used in the LA-100 MkIII (I believe earlier versions as well but not sure). Both preamps were offered with the Purist Audio wiring option (versus stock Cardas) and remote option. The LA-200 was stereo only and the LA-100 featured a Stereo/Mono switch. Also, I believe you could stipulate dual volume controls or volume/gain controls for each unit, although mine is dual volume and Jud recommended I keep it that way.
Both these preamps are warmer and more musical than the LA-150 which uses the Russian tubes. I think the LA-150 is a great preamp, but there are many more preamps like it, some like the Herron that outperform it. For the money, the LA-200 or LA-100 MkIII is tough to beat in its price range, especially used.
I bought an LA-200 (based on the serial number the first unit made) about a year ago from the person who originally reviewed the preamp in PF (the review is on the Joule website). I sent the preamp to Jud and he upgraded it to an LA-100 MkIII. Other than cosmetics, the LA-200 and LA-100 were pretty similar. The LA-200 was top of the line until the signal path circuitry was changed and the LA-100 MkIII was released (6350 Mu follower replaced the 5751). The main differences were in the output impedance, where the LA-200 was not recommended for use with amps under 100k ohm input impedance, and gain where the LA-200 had slightly more gain than the LA-100 (although on both preamps this was adjustable, the LA-200 uses 4 rocker switches in 2db increments and the LA-100 has jumpers for 2 settings).
The only other difference was the power supply tubes where the 10EM7 tubes found in the LA-200 became obsolete and instead the 6EM7 was used in the LA-100 MkIII (I believe earlier versions as well but not sure). Both preamps were offered with the Purist Audio wiring option (versus stock Cardas) and remote option. The LA-200 was stereo only and the LA-100 featured a Stereo/Mono switch. Also, I believe you could stipulate dual volume controls or volume/gain controls for each unit, although mine is dual volume and Jud recommended I keep it that way.
Both these preamps are warmer and more musical than the LA-150 which uses the Russian tubes. I think the LA-150 is a great preamp, but there are many more preamps like it, some like the Herron that outperform it. For the money, the LA-200 or LA-100 MkIII is tough to beat in its price range, especially used.