Purchased a 1978 JMP 2203

[NewReligion]

I just finished modifying a 78 2204. SoundClick artist: rockstah plexi tweaks and mods - page with MP3 music downloads
My main amp that i use to test circuits on is a 78 1959 as well.
I also own a 79 2203 which is basically the same as a 78 2203.
Excellent score!
Mark

Sounds great as always Mark. Is the reverb added after capture?

David

 

[rockstah]

Sounds great as always Mark. Is the reverb added after capture?

David

yes it is added after the fact - thanks!

 

[emmettxxx]

Niiiiiice

 

[medicjg]

Cant wait to hear what you think of it. Congrats!

 

[dptone5]

Congrats David!!! Looks awesome!

Can't wait to hear you record or put up video on YouTube!!

DP

 

[AndyHz]

Hey man, that's actually my JMP that you bought. Just sent it fedex today, you're going to love it. Run it 50w and let her crank!

 

[maxime1122]

Hey man, that's actually my JMP that you bought. Just sent it fedex today, you're going to love it. Run it 50w and let her crank!

Small world... hehe!

 

[charveldan]

Hey man, that's actually my JMP that you bought. Just sent it fedex today, you're going to love it. Run it 50w and let her crank!

Keep it 100 watt IMHO.....

 

[NewReligion]

Hey man, that's actually my JMP that you bought. Just sent it fedex today, you're going to love it. Run it 50w and let her crank!

Really cool.

So I have to ask. Why let go of the 1978 JMP? Also is there anything else you can tell me about the amp. (From the photo) It looks like there have been a couple of component changes in addition to the Bias Resistor. Did it at one time have 6550 Power Tubes?

Thanks, I'm sure it will be a great amp.

N R

 

[NewReligion]

Also if you have a Youtube/otherwise recording of the amp, posting it here would be great.

N R

 

[AndyHz]

I'm the second owner. It did come with 6550s but I had it changed to els. This really was my first love gear wise. Reason why Im letting go is because I just picked up a 69 super bass at a ridiculous price.. I have it posted on the vintage page. I do have stuff on YouTub ill have to check.lookup a video by a user name bread casket. I think its called track 12

 

[NewReligion]

I'm the second owner. It did come with 6550s but I had it changed to els. This really was my first love gear wise. Reason why Im letting go is because I just picked up a 69 super bass at a ridiculous price.. I have it posted on the vintage page. I do have stuff on YouTub ill have to check.lookup a video by a user name bread casket. I think its called track 12

Cheers, thanks for the info. I found Breadcasket. Nothing under Track 12 but a lot of interesting Somerville stuff lol.

David

 

[AndyHz]

Na not us. Those guys are our pals tho. Just for what it's worth. I have run so many types of tubes thru that thing, I really foundnthat the tungsols were the best. I'd stick with tungsols or Chinese 12ax7s for the preamplifier too. I've also used a hotplate when I had it running at a 100w but found it kinda thinner sounding. Best for me was 50w with a tubescreamer. I know you'll love it man, enjoy.

 

[charveldan]

100 watts in all it's glory.............it is 100 watts after all eh? The reason Marshall came out with 100 watt amps is cause 30 & 50 watts weren't cutting it.

 

[NewReligion]

Cool amp Andy, thank you.

Shortcut to Related Workbench:

http://www.marshallforum.com/workbench/39959-cleaned-up-board-jmp-2203-a.html#post587128