Hi Brad, I do see these as educational videos... not necessarily because I'm going to rip open my amps and have at them (although I have done a few jobs on my own amps), but because it helps us understand how amp circuits work, how to better look after them, what problems we experience might be caused by, and how to communicate more effectively (and vette) our local amp techs. Its invaluable, man! ...and served with a touch of snark, which is always fun :)
Re "pot metal": I don't know what the alloy is made of nowadays, but sometimes really old pot metal becomes so unstable that it literally cracks and crumbles and falls apart. I once rebuilt a meter from a really early piece piece of test equipment where the cast bracket that held and supported the meter assembly had literally broken apart in chunks and had to be painstakingly glued back together.
Dude your instructional approach is awesome. Some of us are into electronics, but don't work on amps necessarily and therefore its great info. Cheers again bro. Btw, anyone as good as you that you'd recommend in Perth?>
Those types of miniature green pots with plastic shafts will often have lubricant around the shaft that appears to be some kind of clear silicone with a consistency and viscosity similar to honey. It may not react well with some control cleaners and its best not to displace it into the resistance elements of the pots. The first time one cleans the pots in a never-before-seen piece of equipment, use your control cleaner very sparingly and cross your fingers beforehand. Sometimes one runs across certain pots that no known control cleaner seems to work on without causing them to become sticky or even seize up completely.
We can't go getting too serious now, can we? After all, we're just insignificant flecks of matter on the edge of absolute zero floating in space filled mostly with nothing.
Brad himself is indeed a bit of a character, but if judged by the content of his character he will easily pass inspection. Of course, that's easy for me to say, being a bit of a weirdo myself😃!
@@BradsGuitarGarage , since you always refer to your viewers as "champions", I have to ask, have you ever read Vonnegut's "Breakfast of Champions"? (Also, that's the point where I mimic the 3 Stooges when someone says to them "Gentlemen, gentlemen": they look around the room and ask "who came in?"😁).
Hi, just interested in your opinion on what it might be, what first comes to your mind? The DSL 50 lost gain, lows, and some volume on the red channel exclusively, no fried components have been detected
@BradsGuitarGarage thank you for confirming that..Amplified Parts spits that part when i search 2018 DSL 100..and....I can't find a board tho...is one out there? Or not since a board seems to not be an issue as often? Mine has melted resistors on it 😬 Thinking of tossing it as I have already bought a Bugera 1960 and a 20 watt plexi.
@BradsGuitarGarage makes sense...mine has some resistors that got hot and began to melt into the board.. Hopefully it can be repaired... Again I appreciate your quick response..
Hi Brad, I do see these as educational videos... not necessarily because I'm going to rip open my amps and have at them (although I have done a few jobs on my own amps), but because it helps us understand how amp circuits work, how to better look after them, what problems we experience might be caused by, and how to communicate more effectively (and vette) our local amp techs.
Its invaluable, man! ...and served with a touch of snark, which is always fun :)
I just used the « two spoons trick » and it works like magic !
Bravo Brad 👍
Those green handled IC puller tweezers work great for pulling knobs.
Re "pot metal": I don't know what the alloy is made of nowadays, but sometimes really old pot metal becomes so unstable that it literally cracks and crumbles and falls apart. I once rebuilt a meter from a really early piece piece of test equipment where the cast bracket that held and supported the meter assembly had literally broken apart in chunks and had to be painstakingly glued back together.
Dude your instructional approach is awesome. Some of us are into electronics, but don't work on amps necessarily and therefore its great info. Cheers again bro. Btw, anyone as good as you that you'd recommend in Perth?>
Grant Ettrick at EAV is your best bet, mate. He's 10x the tech I could ever hope to be.
Those types of miniature green pots with plastic shafts will often have lubricant around the shaft that appears to be some kind of clear silicone with a consistency and viscosity similar to honey. It may not react well with some control cleaners and its best not to displace it into the resistance elements of the pots. The first time one cleans the pots in a never-before-seen piece of equipment, use your control cleaner very sparingly and cross your fingers beforehand. Sometimes one runs across certain pots that no known control cleaner seems to work on without causing them to become sticky or even seize up completely.
Cliff Burton style....🤘🤘, I hear ya
BTW, thanks for making these videos-you're one of the islands in the sea of... characters.
We can't go getting too serious now, can we?
After all, we're just insignificant flecks of matter on the edge of absolute zero floating in space filled mostly with nothing.
@@BradsGuitarGarage At least one of those flecks can rock out on a DSL100 again, even if it *is* in the silence of space. X-D
Brad himself is indeed a bit of a character, but if judged by the content of his character he will easily pass inspection. Of course, that's easy for me to say, being a bit of a weirdo myself😃!
@@BradsGuitarGarage yeah but for all that, some of us do rock pretty hard once in a while, eh? ;)
@@BradsGuitarGarage , since you always refer to your viewers as "champions", I have to ask, have you ever read Vonnegut's "Breakfast of Champions"? (Also, that's the point where I mimic the 3 Stooges when someone says to them "Gentlemen, gentlemen": they look around the room and ask "who came in?"😁).
spot on dude......
What is the soldering iron/solder sucker combination tool you are using? That is badass.
Pace SX100 with an MBT station.
Where do you get the boards? Marshall doesn't make these anymore.
I'm developing a replacement. But it doesn't exist until it does, so don't ask when it will be ready.
Hi, just interested in your opinion on what it might be, what first comes to your mind?
The DSL 50 lost gain, lows, and some volume on the red channel exclusively, no fried components have been detected
You tried swapping the 12AX7's with a known good one?
@@BradsGuitarGarage yes, doesn't help
It's likely going to need some component level repairs then, so I'd contact your nearest reputable tech.
2:20 - SHUT UP COMPRESSOR....
These are good sounding amps when they work. Too bad Marshall used cheap parts when they were made.
Mr Brad. I have a 2018 DSL 100..obvioulsy not the JCM 2000 namesake. Do the PH219 also work on this head?
Plz advise.
Completely different amp design, mate.
@BradsGuitarGarage thank you for confirming that..Amplified Parts spits that part when i search 2018 DSL 100..and....I can't find a board tho...is one out there?
Or not since a board seems to not be an issue as often?
Mine has melted resistors on it 😬
Thinking of tossing it as I have already bought a Bugera 1960 and a 20 watt plexi.
As far as I know, the conductive PCB issue has never arisen on that model to date.
@BradsGuitarGarage makes sense...mine has some resistors that got hot and began to melt into the board.. Hopefully it can be repaired... Again I appreciate your quick response..
Oliver stone, The Doors....