later 1973 super lead JMP 1959 circuit board pic mustard caps

[73 super lead steve]

I have one mustard cap on my Marshall that is eluding me due to it's chipped outer casing, can't load a pic of cap yet, cause you have to be Stephen Hawking to figure it out, so I was thinking one of yous would have a pic of the above mentioned circuit board, this board is most likely one of the first partial printed pcbs due to it's yellow color, that I can't find on the outerweb, all he others that I found where green and without mustard caps? if this helps ,the model# is 6425-E and does anyone have the child's version of how to place pics on this site? as you can tell this old bird has been hacked on for 48 years of it's life, replaced screen resistors, new volume pots, and for some unknown reason a replaced output jack along with the hideous rewire-n of all the remaining output jacks along with the one replaced resistor with the white wire due to some one not want-n to lift the board to replace it ,I'm sure there are others that bare the tell tale sings of top solder or how ever you spell it, try-n to get it back in shape I i

 

[Donnie B.]

 

[Donnie B.]

Also:

https://www.google.com/search?q=197...ECBoQBA&biw=1920&bih=948#imgrc=x2jQ7QaUH50PjM

 

[73 super lead steve]

View attachment 70267

Big D, thanks for the guidance info on the pic placement I'll give it a try ,I have a enlarged pic of the cap to load if everything works

 

[SpiderWars]

2n2 is 2.2 nanofarads and the 22n are 22 nanofarads. Is there something wrong with it?

 

[glip22]

I could restore that to original for you down to the aged red solder joints. I would get rid of the death cap if it has it and remove the AC line from the snubber cap at the end of the board rectifier diode side also. Have a tech take care of it for you .I would leave the .002 Mustard alone unless it is bad. A piece chipped off will not affect anything. My 73 kills. It also has high PV at 520.

 

[73 super lead steve]

2n2 is 2.2 nanofarads and the 22n are 22 nanofarads. Is there something wrong with it?

2n2 is 2.2 nanofarads and the 22n are 22 nanofarads. Is there something wrong with it?

thanks 4 the reply, I was just try-n to make it look good, and I couldn't make out the #s there are a lot of places on the board that need clean-n up the last tech that worked on it didn't lift the board to do any re-solder as you can see there are two caps that he just clipped the leads an solder to the stubs stick-n out, it would -b- swell if I could replace the screen resistors but the power tubes have been changed from 6550 to el 34s,

the amp came from across the water with 6550s, the death cap was suppose to -b- removed ? I also know that the old bird has been hacked on over the years and a person just can't keep the original components due to use, unless your just a collector and don't know how to play, I used the amp since 1978 ,and I guess the person who had it before me couldn't keep it from blow-n out all the windows in the house, lol

 

[SpiderWars]

TBH, using the stubs for those cathode caps might be a better way because look at those pads. You can tell they have been compromised.

 

[73 super lead steve]

I could restore that to original for you down to the aged red solder joints. I would get rid of the death cap if it has it and remove the AC line from the snubber cap at the end of the board rectifier diode side also. Have a tech take care of it for you .I would leave the .002 Mustard alone unless it is bad. A piece chipped off will not affect anything. My 73 kills. It also has high PV at 520.

Mr. Glip throw me some figs $ , not quiet sure on how you would make the 2 Vpots look old unless you have 2 old new stock Vs and as you can tell he liked romex just look at the output jacks and a few other spots throughout, it's good to know I'm not the only one with a 73 is yours ptp or partial pcb ? I tried to find a 73 with the blond C board, but could only find ones with the green color Is this board one of the first of the change overs from ptp to pcb? there are some caps I would like to (mustard) back in place but not sure if they where there to begin with, the death cap was suppose to -b- removed from the tech I used to install new filter caps/and tubes and low and behold it came back with different tubes/screen resistors and a the pro wire job on the output jacks, kinda lost on the AC line from the (snubber cap ?) I know the rectifier side of board but there's been some work on that end to , do you have a pic of your C/B ? mine kicks ass also have had alot of offers on that bird

 

[73 super lead steve]

TBH, using the stubs for those cathode caps might be a better way because look at those pads. You can tell they have been compromised.

Spider man I didn't look at it that way I took it that he was in a hurry, I 'll see if i can get a continuity test on the pads ? it's good to know there is people out there like you

 

[Donnie B.]

TBH, using the stubs for those cathode caps might be a better way because look at those pads. You can tell they have been compromised.

Just replaced all the caps in my 87 Boogie and did it this way so I didn't have to get the pads too hot.
Why take a chance of them lifting because they're so old?

 

[73 super lead steve]

Just replaced all the caps in my 87 Boogie and did it this way so I didn't have to get the pads too hot.
Why take a chance of them lifting because they're so old?

BigD- I agree on the stubs and my ass-sumption was based on where he de-solder a couple of resistors and slipped new ones and re-solder on top ,I've had the amp for the better part of 45 yrs and I'm a stickler for not bang-n equipment around granted I played a llllllot of gigs with it for the better part of those yrs, the boys get-n a little vay cay right now cause there's a new kid in town

 

[Donnie B.]

the boys get-n a little vay cay right now cause there's a new kid in town

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[73 super lead steve]

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B D the gray look-n head is a PV 212 combo chassis turned upside down so no one could tell what it is and the material used is plastic deck-n board, yanked this combo out of the trash, got it work-n and put a 12" blackback clest in in it, couldn't bare throw-n it back in the garbage so I used it every once in awhile at home to learn new material I'm a tube head all the way, The receiver is a 70s Marantz I got along with a 70s SAE preamp and a SAE 50w power amp all three for $20 @ a auction,

 

[73 super lead steve]

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View attachment 70617

Big D- the gray look-n head is a PV 212 combo chassis turned upside down, and the material used is the plastic deck-n board you use on decks, it use to have a 12" blackback clest in the combo cab it was a amp I pulled out of the trash and did a Frankie on it , I wanted to put it upside down so no one could make out what it is, never used it out but it worked fine for use at home, The receiver is a 70s Marantzs or how ever you spell it, I got that and a same year SAE preamp and SAE 50w power amp, along with it at a auction for $20 all work, I make PA and guitar spk cabs as a side line ,do you see the white colored cab behind the strat ? its another Frankie cab in spired by Lenny and his 4-15 cab he used on stage the only difference is the cab is a clone of a 4-12 Marshall cab with two EV 150b 1000w spks. stuffed into it, puts out around 4800 peak no problem b-n- heard there for the normal bass player, that's an old pic, I've added a few more items since then, I feel more comfortable set-n in a room that looks like a music store sorry about the double post ,my outer

net cry-fi keeps go-n by by