Author Topic: Marshall amps summary for reference (Read 13021 times)

viking · « **Reply #15 on:** December 04, 2007, 12:34:32 AM »

Great!You read my mind,Twinfan...I wanted to ask for someone to do just that 8) .Maybe somebody could continue the listing of Marshall's as everything is not yet clear?Like those 2203,2204 terms etc..For exemple,there seems to be many different types of JCM800 etc..Thanks ! 8)

Twinfan · « **Reply #16 on:** December 04, 2007, 08:50:25 AM »

Did you not read my post HTH? It's not a complete list it's a simple summary ;)

Quote from: Twinfan

...(I'll avoid all the minute details and keep it general)...

I've updated the post to include the 2203/2204 references for Viking. Plus I've added the Silver Jubilees...

HTH AMPS · « **Reply #17 on:** December 04, 2007, 06:08:18 PM »

Quote from: Twinfan

Did you not read my post HTH? It's not a complete list it's a simple summary ;)

Quote from: Twinfan
...(I'll avoid all the minute details and keep it general)...

I've updated the post to include the 2203/2204 references for Viking. Plus I've added the Silver Jubilees...

And during '67 then changed the cathode arrangement on the first gain stage to... :roll: :lol: I don't read stuff properly - I still skip-read, it's a hangover from my Uni days

The JTM50s do have a seperate model number so I thought they were worth mentioning. They were the first solid state rectified Marshalls afterall and are the first instance of THAT EL34 Marshall RAWK tone imo.

The JTM45s changed to EL34s late on, but the valve rectifier still makes a noticeable difference, as did the output transformer change for the EL34s (rarther than the earlier KT66 OT)

The Majors and Pigs I just put in to wind you up :lol:

:twisted:

Twinfan · « **Reply #18 on:** December 04, 2007, 06:42:10 PM »

The Black Flag JTM50s are a transition between the JTM45 and the Plexi 50. They get left out as "minute detail" ;)

I think we've bored everyone else now????

DeanS · « **Reply #19 on:** December 04, 2007, 08:25:07 PM »

Oh, and don't think that all the JMP master volumes were EL34 tubed either. I've a '79 model that came with 5881 valves as standard.........

Twinfan · « **Reply #20 on:** December 04, 2007, 08:33:48 PM »

Most of the UK ones did. US spec was 5881. They were stronger and didn't break in shipping across the pond...

Will · « **Reply #21 on:** December 09, 2007, 11:29:54 PM »

Just a thought here, from the change over from plexi's 4 inputs to the jcm800's 2 inputs, which category do the 800's inputs fit into?
The plexi 'ordinary', 'Bright' or a compromise?

indysmith · « **Reply #22 on:** December 09, 2007, 11:34:04 PM »

the 800's input are a hi-gain and lo-gain. originally they were designed with the 'high' input for singlecoils and 'low' for humbuckers, as humbuckers are generally louder.
However, people usually just use the high input whatever (we all know what that sounds like), although i really like the low input aswell for more clean and plexi territory.

Will · « **Reply #23 on:** December 09, 2007, 11:46:32 PM »

Yeah, I understand that much, but are the high and low inputs like the norma; channel, or bright channel of plexi sounds?

Twinfan · « **Reply #24 on:** December 10, 2007, 09:39:36 AM »

They're the bright channel will. The normal channel was removed on the 2 input amps.

Will · « **Reply #25 on:** December 10, 2007, 04:28:42 PM »

Thanks for that, just came up in my head as I was trying to sleep, and couldn't sleep til 2, so I was really wondering.

808 · « **Reply #26 on:** December 10, 2007, 05:18:46 PM »

I've been reading my Marshall book and the JTM45 sounds like a great partner for my JCM900.

I'd also like a JMP 50 watt also.

I really dig the sound of these 2.

'72 Marshall JMP 50 with ultimate attenuator.

http://youtube.com/watch?v=CiWLnYU6JBQ

'75 Marshall JMP 50 watt with THD Hotplate

http://youtube.com/watch?v=Lea4OdcvkpE&feature=related

I'm going off of memory but I believe those are RY's in his Paul.

I've been contemplating a hotplate. I had one in my hands yesterday but I really want to hear it with my amp before I buy it.

Tellboy · « **Reply #27 on:** December 10, 2007, 05:43:34 PM »

Quote from: 808

I really dig the sound of these 2.

'72 Marshall JMP 50 with ultimate attenuator.

http://youtube.com/watch?v=CiWLnYU6JBQ

'75 Marshall JMP 50 watt with THD Hotplate

http://youtube.com/watch?v=Lea4OdcvkpE&feature=related

I'm going off of memory but I believe those are RY's in his Paul.

He seems to get a great sound whatever amp he plays - listen to his Elmwood Modena and Wizard Classic clips.

HTH AMPS · « **Reply #28 on:** December 10, 2007, 09:18:24 PM »

The Export Marshalls to the US had 6550s right through the JMP era, never heard of 5881s used in Marshalls as a stock valve until Marshall changed to them in the early 90s.

:twisted:

Twinfan · « **Reply #29 on:** December 10, 2007, 10:26:37 PM »

Ooops - got my valves mixed up :oops: