Re: Marshall JMP production yr. 1979 Amp Trouble

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6/8/2000 11:08 PM
Tonefactor	Re: Marshall JMP production yr. 1979 Amp Trouble quote: "The connections were properly wrapped around each tube pin, and just never soldered at the factory !"         The power tubes in my Marshall 6100 were wired this way when I got it too.

 

6/12/2000 9:19 AM
Liam	If you think the '79 model years are bad, you should check out 82 onwards models. It all got far worse.

 

7/4/2000 10:29 AM
Chris	Amen to that Liam. I have seen some ABYSSMAL examples of workmanship in 90's Marshalls - really tatty and insubstantial. I have to say that quality of finishing, soldering, etc. in my '79 JMP MKII 50 watt head is great - maybe I just got lucky!     Chris

 

7/5/2000 6:44 PM
Melanhead	I have an 78 and an 82. Both sound great with the right amount of attention!!

 

7/6/2000 12:13 PM
Chris	I agree Melanhead - best amp I've ever owned. So full and warm sounding, with balls a plenty. Two things: (1) swapped 470pf from RC circuit for the 1nf on the preamp pot - kills excessive brightness (2)I use the low sens. input to bypass the 1st preamp stage - crank MV to 10 and adjust preamp vol.until she's crunching - GE-7 with a midrange boost for added dirt. Heaven!     Chris

 

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