Anyway I got lucky to buy one last preamp from Peach Guitars in UK. This is the V2 / current version, released this year.
mesa boogie di pre amp
Sticker Mesa Boogie - 070117 "Boogie" Cream
Amazing Rare 1970s 'Doobie GB-40' Guitar Amp - Made in Japan (Mesa Boogie)
Mesa Boogie 6L6 GC STR 420 Power Tubes Valve, Opned it never used
Mesa Boogie Express 5:25 Combo Valve Tube Amp Amplifier Excellent Condition
Mesa Boogie 1980 Mark-2 Blonde Black Shadow SP Made in USA Vintage High-end amp
