I know this is two years old video but My Raw Dawg amp had the same symptoms Not expecting much I applied electronic solvent cleaner to the volume pot and the adjacent P C board I also jiggled the mini Nutube in its socket And Lo and behold a choir of angels sang Hail Mary and it started working again! I’m not sure it I would trust it for a gig but I actually really like it’s clean tone So thanks very much Mr Psionic
BTW, the shop I worked at had a vintage piston-type cleaner/lubricant pump that looked like a large metal syringe or mini bicycle-tire pump, with SAE threads that fit some vintage pots, for pumping cleaner around the shaft and into the pot. I remember using it, with some tubing for size adaptation, on metric-shaft pots in a DJ mixer with rotary pots(sealed or semi-sealed, IIRC), a Urei or Rane perhaps, can't quite remember..... it was either that or massive disassembly, removing every knob, unbolting every single front panel control, and pulling a half-dozen PC boards.
Tin, or certain tin alloys, can be inherently unstable, *especially in cold temperatures*; there was a historic polar expedition that derailed due to the failure of tin seals on the canned food the explorers were relying on (from an episode by The History Guy on You Tube, though I don't remember which expedition). The phenomenon is sometimes referred to as "tin pest", and I can understand why satellites in frigid outer space would be especially prone to forming dendrites that short out the circuitry. Lead-free solder is terrible stuff that makes for solder joints which don't "wet" very well to the component leads and PCB foils, and which degrade, dry out and break down from heat and vibration, prematurely rendering the device into junk, necessitating the purchase of a new piece of "working" E-junk to replace the now-defunct piece of E-waste. My theory is that the switch to lead free solder wasn't so much to "save the environment", and save people, from the effects of toxic lead but instead to prevent the alternative, which would have been for all manufacturers to have expensive, fee-based plans in place to take back all their old products for safe recycling. Which, IMHO, they should be forced to do anyway. Lead free solder also helps manufacturers by guaranteeing planned-obsolescence of their equipment, thereby increasing their bottom line because they get to sell you a new unit prematurely when the old one fails preaturely. Note also that the organic acid fluxes necessary for lead-free solder are both obnoxious and toxic, far more so than ordinary rosin flux used with lead solder; and those fluxes will cause corrosion to circuit board traces and connections if the board isn't completely scrubbed clean after manufacture. The acidic fluxes, in conjunction with the higher temperatures necessary for lead free solder, also shorten the life of your soldering iron tips.
Man that’s a cool story about Eric .. he’s such a monstrous player !! I have this very amp and he signed mine .. my EG raw dawg has been doing something weird lately in that as i play it for awhile the sound gets darker and just on the edge of muddy … i run it in a pine cabinet with 2 WGS 8ohms speakers in it … I’d like to get it fixed … what are your thoughts based on my description ?
Great vid, I hear you mentioning that it doesn't feel good to play when referring to amp pedals or solid state stuff, what is that do you think is it something personal for you or does it have to do with something others experience as well?
You must admit sir that you did not 1. SEE this alleged stannum whisker, nor did you 2. determine its stannous nature. Do you know what component of your environmentally hazardous and biologically poisonous solvent dissolves tin?
@@PsionicAudio it’s Friday man. Got to be a little bit loose. I hope you are giggling. But I wonder seriously what in the deoxit dissolves tin. Even a whisker of it. Because if it dissolves any… That means it creates a thin layer of tin everywhere on a pcb anytime you use it on a circuit board with tin solder.
@@PsionicAudio I was only half listening to your video but hear now you mentioned using compressed air. Which could dislodge a whisker of course but perhaps only temporarily. I had only remembered you mentioning deoxit. Believe it or not encapsulated quartz crystals in all manner of clocks can have a slight bit of debris which can stop the tuning fork from vibrating. It can become dislodged through shock and then re-lodged.
Are you saying you know what tin whiskers are but don't think this was the issue, or are you saying you don't know what they are and think I'm making things up?
