UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > Websites

Notices

Websites Found an interesting website? Post the details here and share it with the rest of us. Please stick to websites that are in some way related to our hobby/interest.

Reply
 
Thread Tools
Old 29th Jul 2020, 12:50 pm   #41
tritone
Tetrode
 
tritone's Avatar
 
Join Date: Nov 2014
Location: Derry, Northern Ireland, UK.
Posts: 65
Default Re: Marshall Amps

I have an old 100W Marshall JMP, well old-ish I suppose. It's a 1969/1970, the first year of the metal face plates after the plexi glass face plates.

I bought this amp back in the 90's for 70.

LOUD!!!

I also met Jim twice too, when he used to have the Marshall road show that toured around the country in the late 80's to demonstrate the new products. Thats one of my true 'claim to fame' stories.
Attached Thumbnails
Click image for larger version

Name:	Marshall JMP.jpg
Views:	102
Size:	129.5 KB
ID:	212128  
tritone is offline   Reply With Quote
Old 29th Jul 2020, 1:11 pm   #42
tritone
Tetrode
 
tritone's Avatar
 
Join Date: Nov 2014
Location: Derry, Northern Ireland, UK.
Posts: 65
Default Re: Marshall Amps

Quote:
Originally Posted by Radio Wrangler View Post
You've now got me wondering what a harp would sound like with a serious fuzz pedal and a lot of crunchy watts rather like Jon Lord did to his hammond especially the intro to 'Lazy"

David
(Just a little side note mods)

Hi David,

I have read somewhere in the past that many harp/harmonica players liked the sound they got when using a valve amp with a very un-balanced phase inverter valve installed that created a more a-symmetrical wave form that resulted in a more distorted type of sound. Something like that I think.

Would that be about right David ?
tritone is offline   Reply With Quote
Old 29th Jul 2020, 2:27 pm   #43
stevehertz
Dekatron
 
stevehertz's Avatar
 
Join Date: Sep 2011
Location: Rugeley, Staffordshire, UK.
Posts: 4,600
Default Re: Marshall Amps

Quote:
Originally Posted by tritone View Post
Quote:
Originally Posted by Radio Wrangler View Post
You've now got me wondering what a harp would sound like with a serious fuzz pedal and a lot of crunchy watts rather like Jon Lord did to his hammond especially the intro to 'Lazy"

David
(Just a little side note mods)

Hi David,

I have read somewhere in the past that many harp/harmonica players liked the sound they got when using a valve amp with a very un-balanced phase inverter valve installed that created a more a-symmetrical wave form that resulted in a more distorted type of sound. Something like that I think.

Would that be about right David ?
I don't know about that, and I doubt many musos would that that was the case so long as they got the sound they wanted. What I do know is, it's quite normal for harmonica players to mic up their instrument into a small, 'practise' valve amp turned up full, and then mic that up into the PA. That way they can easily overload the practise amp with it being too loud.
__________________
A digital radio is the latest thing, but a vintage wireless is forever..
stevehertz is online now   Reply With Quote
Old 29th Jul 2020, 3:56 pm   #44
Radio Wrangler
Dekatron
 
Radio Wrangler's Avatar
 
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 15,217
Default Re: Marshall Amps

It would be possible to make a variable unbalancer... particularly for amplifiers with cathode-coupled (long tailed pair) phase splitters.

David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
Radio Wrangler is online now   Reply With Quote
Old 29th Jul 2020, 5:05 pm   #45
Techman
Dekatron
 
Techman's Avatar
 
Join Date: Nov 2009
Location: Lincolnshire, UK.
Posts: 3,247
Default Re: Marshall Amps

Quote:
Originally Posted by Radio Wrangler View Post
You've now got me wondering what a harp would sound like with a serious fuzz pedal and a lot of crunchy watts rather like Jon Lord did to his hammond especially the intro to 'Lazy"

David
Yes, the great John Lord. I couldn't believe it when I heard he had died

A local(ish) lad from Leicester, I believe, formally of Deep Purple and before that the Flower Pot Men, which morphed from the Ivy League, a member of which died in poverty in a Lincoln flat close to where I used to work.

As regards to guitar players, I recently discovered this young lady on 'youtube', not just talented, but gifted in her style of playing in my opinion. After seeing her play she'll just make you want to give up and never play again - what's the point after seeing this - could you ever be this good:-
https://www.youtube.com/watch?v=rEr2JZOa27c
Techman is offline   Reply With Quote
Old 29th Jul 2020, 7:47 pm   #46
tritone
Tetrode
 
tritone's Avatar
 
Join Date: Nov 2014
Location: Derry, Northern Ireland, UK.
Posts: 65
Default Re: Marshall Amps

(Sorry mods )

Nice one Techman, brilliant.

& don't forget about Tina S either playing some Beethoven.

Well, lets face it, if wasn't for Marshall amplifiers, the sound of the electric guitar would be as far back as the Generals !

https://www.youtube.com/watch?v=o6rBK0BqL2w


Last edited by tritone; 29th Jul 2020 at 7:56 pm.
tritone is offline   Reply With Quote
Old 30th Jul 2020, 3:17 pm   #47
ColinTheAmpMan1
Octode
 
ColinTheAmpMan1's Avatar
 
Join Date: Jan 2012
Location: Wimbledon, London, UK.
Posts: 1,319
Default Re: Marshall Amps

Quote:
Originally Posted by Radio Wrangler View Post
It would be possible to make a variable unbalancer... particularly for amplifiers with cathode-coupled (long tailed pair) phase splitters.

David
Long-tailed pair phase-splitters are sometimes intentionally "unbalanced" in terms of the anode resistors not being the same, simply in order to balance the outputs of the two triodes in the long-tailed pair. If the anode resistors are identical, the outputs of the two triodes will differ.

So, if you built a long-tailed pair phase-splitter with adjustable anode resistor(s), you might achieve a (maybe limited) unbalance. You could get even cleverer by having the two anode resistors as a dual pot, with one increasing as the other decreased its resistance. I would imagine that the amount of unbalance and difference between the anode resistors would have to be limited, but perhaps someone with more knowledge of valve circuitry might have some better ideas?

Colin.
ColinTheAmpMan1 is online now   Reply With Quote
Old 30th Jul 2020, 3:45 pm   #48
ColinTheAmpMan1
Octode
 
ColinTheAmpMan1's Avatar
 
Join Date: Jan 2012
Location: Wimbledon, London, UK.
Posts: 1,319
Default Re: Marshall Amps

Quote:
Originally Posted by Techman View Post

As regards to guitar players, I recently discovered this young lady on 'youtube', not just talented, but gifted in her style of playing in my opinion. After seeing her play she'll just make you want to give up and never play again - what's the point after seeing this - could you ever be this good:-
https://www.youtube.com/watch?v=rEr2JZOa27c
Ok, she is better than me and nifty on the fretboard, but she isn't the only one. I tend to think positively about better players than myself - the "why can't I do that? I'll give it a bash".

Why hasn't she been recorded? Or maybe she has, but in these days of downloading music, I just haven't noticed.

Other impressive players in the "shred" zone include Joe Satriani, Steve Vai and Eddie Van Halen. If you want to be truly dumbfounded to the extent of giving up playing, just take a look at what Jeff Beck can do (I have a go at some of his stuff, too. He is getting on a bit but can still pull it out).

Colin.
ColinTheAmpMan1 is online now   Reply With Quote
Old 30th Jul 2020, 4:35 pm   #49
Petedox
Tetrode
 
Petedox's Avatar
 
Join Date: Feb 2020
Location: Waterlooville, Hampshire, UK.
Posts: 70
Default Re: Marshall Amps

Thanks for the link Techman, there seems to be no end of talent available on Youtube from kids of all ages, it just blows me away!

These talents represent one of the more positive aspects of Youtube. Many artists would surely remain hidden otherwise.
__________________
Pete
Petedox is offline   Reply With Quote
Old 30th Jul 2020, 4:43 pm   #50
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 9,401
Default Re: Marshall Amps

I watched the video, gotta say....zzzzzzzzz.

Each to their own.

I'm old enough to remember Sister Rosetta Tharpe on telly near Manchester, go babe go:

https://www.youtube.com/watch?v=Y9a49oFalZE

Lawrence.
ms660 is online now   Reply With Quote
Old 30th Jul 2020, 6:00 pm   #51
AC/HL
Moderator
 
AC/HL's Avatar
 
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 8,869
Default Re: Marshall Amps

I occasionally open a second session to listen to YouTube in the background. There are indeed many excellent covers of prominent musicians. No one holds the rights to be the best, just to be amongst them. They're not all using Marshall amps though.
__________________
Bill, BVWS member
AC/HL is online now   Reply With Quote
Old 30th Jul 2020, 9:58 pm   #52
mark_in_manc
Octode
 
Join Date: Nov 2011
Location: Manchester, UK.
Posts: 1,251
Default Re: Marshall Amps

Quote:
Originally Posted by ms660 View Post
I watched the video, gotta say....zzzzzzzzz.

Each to their own.

I'm old enough to remember Sister Rosetta Tharpe on telly near Manchester, go babe go:

https://www.youtube.com/watch?v=Y9a49oFalZE

Lawrence.
Hey, that's cool. Is that the same gig as Muddy Waters, at Chorlton station? That's now a tram stop round the back of Morrison's - a less rock-n-roll venue would be hard to find, even if it isn't raining. There should be a blue plaque
mark_in_manc is offline   Reply With Quote
Old 31st Jul 2020, 10:18 am   #53
ms660
Dekatron
 
ms660's Avatar
 
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 9,401
Default Re: Marshall Amps

Quote:
Originally Posted by mark_in_manc View Post
Quote:
Originally Posted by ms660 View Post
I watched the video, gotta say....zzzzzzzzz.

Each to their own.

I'm old enough to remember Sister Rosetta Tharpe on telly near Manchester, go babe go:

https://www.youtube.com/watch?v=Y9a49oFalZE

Lawrence.
Hey, that's cool. Is that the same gig as Muddy Waters, at Chorlton station? That's now a tram stop round the back of Morrison's - a less rock-n-roll venue would be hard to find, even if it isn't raining. There should be a blue plaque
Yes it was, Granada was tops again.

Lawrence.
ms660 is online now   Reply With Quote
Old 4th Aug 2020, 9:45 am   #54
Uncle Bulgaria
Heptode
 
Join Date: May 2016
Location: Cornwall, UK.
Posts: 718
Default Re: Marshall Amps

That's brilliant! I love watching musicians for their remarkably different techniques. There're some excellent Alan Lomax videos on YouTube too.

I got a Little Esther 78 a little while ago from a seller who said he'd seen her in New York. A little bit of history with every record. I've got a Marshall JCM600 from Freecycle that's awaiting cautious testing. Apparently it has a reputation for blowing up.
Uncle Bulgaria is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 12:36 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Copyright ©2002 - 2020, Paul Stenning.