73 super lead steve
Member
anyone out there know when Marshall changed over to PCB boards in that year and what's the difference in looks from PTP and PCB ?
panhead
Well-known member
late73
panhead
Well-known member
I d think you would know with that forum title
Samhain
Banned
Well-known member
About the time the faceplates went from Plexiglass to Metal but if there is anything consistent about old Marshalls is they're highly in-consistent.
R
Racerxrated
Well-known member
Metal panels came in '69, PCBs took over in mid-late '73. I've heard some PCBs that are destroyers of worlds; while some PTP sounded anemic. Just gotta play them and see...
Samhain
Banned
Well-known member
Ive seen a 69' SL with a Plexi front & Metal back and everything in between you can imagine.
Rick Lee
Well-known member
This confusion is what makes the '72s so sought after. You know all the '72s are PTP. Though I'd take a '73 PTP for the right price and be happy with it. PTPs sure are easier to wrench on.
R
Racerxrated
Well-known member
Pretty sure by 70/71 everything was metal panel, from what I've seen in person and for sale in my years of stalking vintage Marshall's. But yes Marshall would throw whatever they had left in building their products, like Mesa or Fender...
Samhain
Banned
Well-known member
Ive seen 3 1983 JMP 2203's complete with correct serial # for 83/correct chassis tag & correct JMP headshells even tho 1981 was the last year for JMP technically.
Just when you've seen it all for old Marshalls something different will pop up.
G
glip22
Well-known member
Don't get caught up in differences. Which PT matters more. You want the one that puts over 500 on the plates. I have had several with the turret board and my best one has been a 73 PCB. 518 on the pates with tubes in
P
phil b
Well-known member
From what I remember the Plexi Panels ended in 1969. Never heard of a 70-73 plexi panel.
Back in the 80's it was all about PTP over CB as it was much easier to mod a PTP and the knowledge wasnt there like it is today to mod a CB.
PTP was very much desired for a high gain monster. That comes right from Ken Fischer. He could and did mod CB amps and made them sound great, but he always said you could dial in PTP easier. Todays world and all the modders out there I dont think that statement holds as much value though.
Back in the 80's it was all about PTP over CB as it was much easier to mod a PTP and the knowledge wasnt there like it is today to mod a CB.
PTP was very much desired for a high gain monster. That comes right from Ken Fischer. He could and did mod CB amps and made them sound great, but he always said you could dial in PTP easier. Todays world and all the modders out there I dont think that statement holds as much value though.
R
Racerxrated
Well-known member
Yep, and those were probably either Canadian or Northern Eu versions. The JMPs lasted into the mid-late 80s when it came to those markets...I've owned a Canadian 82 2204 in JMP skin, complete with the 500v + PTs that were common from mid 82-mid 83. The Canadian versions had no 16 ohm out, just 4 or 8 plus those extra fuses inside the chassis. The Northern Eu had 4, 8 or 16 like usual but they only made the change to the 800 design in the mid 80s. You can also find one of those Canadian or Norther Eu versions with laydown PTs also.
I'd like to find out why that was the case...maybe they just used up all the extra JMP supplies with only those 2 markets?
Rick Lee
Well-known member
The PT in my '79 2203 blew about a year ago and I replaced it with a cheapo Hammond from tubesandmore.com and I can't detect any difference in tone at all. If it had been the OT, I'd have been a little pickier and maybe even waited for Chris Merren to return a call or email. Mercury wanted $500 and 10 weeks to rewind it. Uh, no.
guitarnie
Member
Also the Canadian market versions didn’t have “rocker” switches, they kept the “toggle” switches for some reason.
guitarnie
Member
The Plexi faces stopped in mid 69, PTP stopped late 73
R
Racerxrated
Well-known member
I recently traded away (for a Naylor SD60) a Canadian 1987 2554 Jubilee combo...great amp; it also had a laydown PT. Interesting what Marshall did over time.
73 super lead steve
Member
pan head thats what i heard to but it seems everybody is in the dark as to pinpoint the date by the way,I put the wrong stamp date on my 73 pose-2 been 6425-E sorry
73 super lead steve
Member
? how do you put all that info down below your post and how do you get an avatar in ones picture spot ?
73 super lead steve
Member
I posted the wrong stamped date code on post, it was suppose to be an ( E ), I mistakenly put my 1977 mk2 (Fawn) master model J date code on the post sorry for the dumbness , my paper chassis tag is completely gone and was try-n to find the day/month all i can judge it by is the partial pcb board I have had it since 76 and I remember it seem-n to be 11-6-73 , so it was right on the cusp of the change over from ptp to pcb and then came along the partial pcb ? my question is was there ever a ptp board in that year and sorry about make-n a long story longer
