"Mk III pics" or "What's on my solder joints&

[phyrexia]

Hi everyone. Here are some pictures of my Mark III.

Can anyone tell me what this orangish crap on my solder joints is? It doesn't really look like rust but it is that color. It is on V1,2, and 3 joints also (as you may see in the pic) but moreso on v5.

 

[Guitarzan]

That sir, would be flux.

 

[phyrexia]

Ah. It alarmed me somewhat. I feel silly now.

How do you guys feel about that '94 date with a blue stripe on the back?

 

[Russ]

That sir, would be flux.

Good call. Sure is kind of messy...

 

[jezzbro]

Hi,

Does your MKIII only have 2 output tubes? :shock:
Don't all mkIII have 4 outputs?

(And yes that orange stuff is flux.)

 

[Russ]

60's had 2. 100's had 4. Coliseums had 6.

 

[Guitarzan]

That sir, would be flux.

Good call. Sure is kind of messy...

Looks like the tech used external fluxing. For this I would have used a lighter flux, perhaps water based. It can be cleaned with alcohol and some patience. It's not harming anything... Now on second glance, if you notice the resistors in the vicinity they are clean... It seems that the tube sockets may have been swapped by a DIY??? What do you think?

 

[phyrexia]

60's had 2. 100's [and simuls] had 4. Coliseums had 6.

Can heat turn flux that color? My V5 is the hottest of my preamp tubes, it seems. I guess it does the most, ultimately. I don't know everything about tube amps (obviously 8) )

Also, the flux is only on the preamp tube joints.

This amp has gone through at least three owners. It could have been worked on somewhere along the line but my friend who sold it to me didn't mention anything like that.

 

[Russ]

That sir, would be flux.

Good call. Sure is kind of messy...

Looks like the tech used external fluxing. For this I would have used a lighter flux, perhaps water based. It can be cleaned with alcohol and some patience. It's not harming anything... Now on second glance, if you notice the resistors in the vicinity they are clean... It seems that the tube sockets may have been swapped by a DIY??? What do you think?

That sounds about right

 

[Boogiebabies]

Looks stock to me. That solder mask burns like a biotch when you heat it.
The power tube sockets had that ghetto wiring from the factory.

 

[Russ]

Why is V4 so clean?

 

[Boogiebabies]

No reverb, no tube, no solder. Oh, no shirt, no shoes and no dice !!!

It was all done on a solder flow machine anyway.

 

[Guitarzan]

Looks stock to me. That solder mask burns like a biotch when you heat it.
The power tube sockets had that ghetto wiring from the factory.

Solder mask... :idea: There ya go!

 

[Boogiebabies]

I used to be quicker before the Klonopin.

 

[Russ]

No reverb, no tube, no solder. Oh, no shirt, no shoes and no dice !!!

It was all done on a solder flow machine anyway.

I guess I missed that big first picture :shock: not even showing a socket for V4 nor RCA jacks. Now it all makes way more sense.

 

[Guitarzan]

Yeah...that's why I put the light bulb in my reply. It hit me when I read solder mask.

 

[Boogiebabies]

Yeah...that's why I put the light bulb in my reply. It hit me when I read solder mask.

I know. Age and medication are terrible tandems for me. Personally, I've been like 10 second Tom for a few months. It's like early onset Alzheimers. I hate it, but at least I can sleep at night.

 

[jvk]

Yeah...that's why I put the light bulb in my reply. It hit me when I read solder mask.

I know. Age and medication are terrible tandems for me. Personally, I've been like 10 second Tom for a few months. It's like early onset Alzheimers. I hate it, but at least I can sleep at night.

I simulate that effect on purpose quite frequently; 6 pints of peer and then a couple of shots of tequila. Makes me slow, and it let's me sleep easily. I can't play guitar for squat when in this condition. Oh well, you can't win on all fronts

 

[phyrexia]

There is a certain plant I am particularly fond of. 8) I know what you all are referring to.

We are all just members of the same club. Heh.