Hi guys ,.....first I'm not a tech but have great ears and have a few questions. I was wondering if I should have a tech mod my JTM45 reissue to vintage specs or have him build me a JTM45 or JTM50 clone instead ? Also I remember @neikeel saying that the reissue has lower plate voltage ,400 iirc while the original had 450 so how does this affect the tone if everything else is done right like filtering ,caps etc... ? Will it sound closer to a vintage 45 or should I get some Marstran trannys and build a clone to get closer ? As a side note ,..I have all the parts like Allen Bradleys ,.Pio caps ,Gec's , Mullard GZ34 rectifier etc. On this site below,...they suggest what should be done to make it sound more accurate , is this correct ? Change (C3) 330uF at V1 cathode to 250uF. A low voltage (25v) electrolytic is fine. Change mix resistors (R16, R18) from 470k to 270k. Change Ch I mix resistor bypass cap (C6) from 220pF to 500--550 pF. The 100pF bright cap on Ch I volume pot can be kept or it can be removed if a thicker, blusier sound is sought. Earlier Bluesbreaker amps had it, later ones did not. 1k cathode resistor R15 on V2 was originally 820ohms. The .1uF cap at the Presence pot originally was connected from the pot wiper (center terminal) to ground. http://raw-sewage.net/jtm45ri_mods.html Really appreciate your inputs on this !