2008-02-16, 00:26
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Metalhead
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Join Date: Apr 2007
Location: Sydney, Australia
Posts: 54
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Re-tube Advice
I can imagine there is another post with someone asking the exact same question I am about to, however...
I have a JCM2000TSL (some love it, some hate it) 100 Watt head, the tubes have just started crapping out on me. I recently picked up a set of JJ KT88's.
Here's where my problem lies: I havve contacted a couple of "amp repairers/modifiers" and I have had mixed opinions, one of them tells me that I shouldn't put them in as they will probably only last a week or so and that the power transformer just isn't capable of running it. The other is quite happy to do it and hasn't told me of any possible problems. The first one is (aparently) a well known and respected guy who a friend of mine told me to go to, the second is a friend of mine whom I would trust his judgment, I just want to know if anyone has had this mod done, be it to the same amp or a different one and what thier experience was.
If anyone can offer any advice on this, I would appreciate it... I dont want people telling me that they hate the JCM2000 and that I should buy a new amp, actual advice on MY QUESTION would be nice.
Cheers,
Laurie
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Ibanez SZ530BB
Ibanez AX1220BBK
Marshall JCM2000TSL100
1960A lead Cab
And One Metric "Death Star"
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2008-02-16, 01:18
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Metalhead
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Join Date: Apr 2007
Location: Sydney, Australia
Posts: 54
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Oh yeah,
Everything in the amp is still stock.
New Power Transformer??
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Ibanez SZ530BB
Ibanez AX1220BBK
Marshall JCM2000TSL100
1960A lead Cab
And One Metric "Death Star"
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2008-02-17, 19:57
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Post-whore
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Join Date: Apr 2003
Location: Mordor/England
Posts: 1,363
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I love the marshall jcm2000 series, I have a DSL100 and it rocks. Anyways the JJ Kt88's can be used as a straight replacment for the EL34's which come with the amp. Just whack them in and re-bias, thats all you need to do.
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"many a time newcastle brown hath cometh to my rescue" blizzard beast
Sold my shit, now its time to PARTY!!!!!
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2008-02-18, 00:06
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Post-whore
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Join Date: Dec 2004
Location: Toronto, Canada
Posts: 1,816
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there will dedfinately be more current draw. Try and figure out what your power transformer supplies before you do it.
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Quote:
Originally Posted by Dahmers Fridge
In the US "fanny" is a word used to describe the ass or butt. Here in the UK "fanny" is a lady garden (vagina)
I was very bemused as a youngster watching the Golden Girls when Blanche said she was going to "spank her fanny" I had visions of a geriatric vertical bacon sandwich red and bruised from being disciplined!!!
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2008-02-19, 09:16
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Metalhead
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Join Date: Apr 2007
Location: Sydney, Australia
Posts: 54
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I had a bit of a chat to the guy that I know personally and he told me that the other guy was full of shit and that it's quite easily do-able. He said there might be a few issues with the power trans, but he can make the necessary changes.
It should be a killer sounding amp by the end of it all..
__________________
Ibanez SZ530BB
Ibanez AX1220BBK
Marshall JCM2000TSL100
1960A lead Cab
And One Metric "Death Star"
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2008-02-20, 00:01
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Post-whore
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Join Date: Dec 2004
Location: Toronto, Canada
Posts: 1,816
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that would sound good
just make sure that the tubes dont draw more current than the poweramp can supply, otherwise you'll need a new poweramp which will be a pain in the ass. Most marshalls however dont have a problem with this so you shouuld be fine.
If you cant get the kt88's to work, try kt77's; theyre direct el34 replacements, have bigger bass and more headroom.
__________________
Quote:
Originally Posted by Dahmers Fridge
In the US "fanny" is a word used to describe the ass or butt. Here in the UK "fanny" is a lady garden (vagina)
I was very bemused as a youngster watching the Golden Girls when Blanche said she was going to "spank her fanny" I had visions of a geriatric vertical bacon sandwich red and bruised from being disciplined!!!
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2008-03-15, 05:28
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Metalhead
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Join Date: Apr 2007
Location: Sydney, Australia
Posts: 54
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I have since found out that this mod will blow up a JCM2000 TSL... I now have to buy not only new tubes... but a new amp... this really sucks...
hopefully me telling you guys this will prevent anyone from making this mistake...
*Looks around at work for a new amp*
__________________
Ibanez SZ530BB
Ibanez AX1220BBK
Marshall JCM2000TSL100
1960A lead Cab
And One Metric "Death Star"
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2008-03-15, 19:21
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TEH PWNZOR!!!1qa
Alumni Staff
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Join Date: Aug 2003
Location: The West.
Posts: 4,433
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Quote:
Originally Posted by disinformation
I have since found out that this mod will blow up a JCM2000 TSL... I now have to buy not only new tubes... but a new amp... this really sucks...
hopefully me telling you guys this will prevent anyone from making this mistake...
*Looks around at work for a new amp*
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Shitty deal. Make your friend buy you a new amp?
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Friends don't let friends play Krank!
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2008-03-26, 05:11
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Metalhead
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Join Date: Apr 2007
Location: Sydney, Australia
Posts: 54
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HAHAHA If only...
__________________
Ibanez SZ530BB
Ibanez AX1220BBK
Marshall JCM2000TSL100
1960A lead Cab
And One Metric "Death Star"
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