Re: New Old Amp Day

shaunf

Picked up a really cool little amp today. Now instead of coming right out and telling you what it is, lets play a little game. I'll post the correct number of X's and you try guess what it is. Pics will be posted once the correct answer is given.

XXXX XXXXXXXX XXX XX XX

Clue: first four X's are the year.

kayDUB

1964 Jennings Vox AC 15

?

shaunf

Nope! ?

Manfred-Klose

well there must be Marshall in that second word

shaunf

@ Manfred! Indeed there is!

shaunf

Ok, here's a couple of clues:

Reinhard

1969 Marshall JMP PA 20

shaunf

Reinhard wrote: 1969 Marshall JMP PA 20

Bingo! ?

Reinhard

? Congrats man, how does it sound?

shaunf

Thanks! It came up from Cape Town. Do you perhaps know the amp or have seen it before?

I tried it for all of 10 minutes so far just to make sure everything was working. Will probably have to wait till the weekend to play it properly. But that aside, the little bit I did hear shows a lot of promise.

One unusual thing about this amp is that it seems to be the Lead and Bass circuit, but in an amp labeled as a PA. It's got the couple of extra parts that differentiate the 2 circuits, and they still have that red stuff painted over the solder joints so you can see they weren't added afterwards.

shaunf

Few more pics while it's out of the headbox:

singemonkey

Nice! Also my favourite control layout. ?

Reinhard

shaunf wrote: Thanks! It came up from Cape Town. Do you perhaps know the amp or have seen it before?

I tried it for all of 10 minutes so far just to make sure everything was working. Will probably have to wait till the weekend to play it properly. But that aside, the little bit I did hear shows a lot of promise.

One unusual thing about this amp is that it seems to be the Lead and Bass circuit, but in an amp labeled as a PA. It's got the couple of extra parts that differentiate the 2 circuits, and they still have that red stuff painted over the solder joints so you can see they weren't added afterwards.

I remember seeing the ad for it on Gumtree if I am not mistaken. My plexi PA was an awesome sounding amp, I am sure this will sound great.

ezietsman

O_o

What a lucky man. Congrats!! I love these old Marshalls ?

shaunf

ez wrote: O_o

What a lucky man. Congrats!! I love these old Marshalls ?

Thanks dude!

From what I understand, the transformers are the same ones used in the original 18 watt amps, although the rest of the circuit is different. As far as I know, it doesn't have as much drive as the 18 watt, but that doesn't matter to me since I have 3 other firebreathing amps! ?

The head box is filthy and covered with some sort of sticky gunk, so I'll post some more pics of it back together once I've got it cleaned up.

shaunf

Something else I just realised that is a little wierd. This amps serial number is exactly 200 numbers less than my 50 watt plexi. sn is 1484, plexi is 1684.

Psean

Nice find man ? Enjoy!

ezietsman

shaunf wrote:
ez wrote: O_o

What a lucky man. Congrats!! I love these old Marshalls ?
Thanks dude!

From what I understand, the transformers are the same ones used in the original 18 watt amps, although the rest of the circuit is different. As far as I know, it doesn't have as much drive as the 18 watt, but that doesn't matter to me since I have 3 other firebreathing amps! ?

The head box is filthy and covered with some sort of sticky gunk, so I'll post some more pics of it back together once I've got it cleaned up.

I think you'll find it has more than enough drive when you put it on 10 (and more than enough volume too haha).

I'm Jealous.

...must fix my old amp, must fix my old amp....

shaunf

ez wrote:
shaunf wrote:
ez wrote: O_o

What a lucky man. Congrats!! I love these old Marshalls ?
Thanks dude!

From what I understand, the transformers are the same ones used in the original 18 watt amps, although the rest of the circuit is different. As far as I know, it doesn't have as much drive as the 18 watt, but that doesn't matter to me since I have 3 other firebreathing amps! ?

The head box is filthy and covered with some sort of sticky gunk, so I'll post some more pics of it back together once I've got it cleaned up.
I think you'll find it has more than enough drive when you put it on 10 (and more than enough volume too haha).

I'm Jealous.

...must fix my old amp, must fix my old amp....

Remind me what old amp you have? Better yet, post some pics!

ezietsman

Mine's a model 1930 Popular. Needs some TLC. There's a thread somewhere.