A guy talks about his recent contact with HAD

[erwin_ve]

and no clue

Erwin
This is not entirely true
Some clue's we got from the FBC amp were?


The FBC amp was the last amp I built so I am anxious to see if I can do another one that responds similarly in this next MM amp I am building.We'll see.
Tony

I actually enjoyed that thread! You made those teasing clips and got dozens of possible research questions
You did use solid core wire, correct?
Looking forward to your next built.

[frankdrebin]

20507828_1902793766709586_2296849885102370111_o.jpg

Dumble has been known to influence positive feedback into a circuit through the routing of certain wires in close proximity to one another...Like Gil mentions these practices have the tendency to make the amp unstable. The trick is knowing which ones you can play with and which ones you can't

BTW.Don't ask which ones go where..I have no idea.

Tony

i was looking at this amp sometime ago,and wondering if the preamp wiring was reflecting more or less the same principle you are talking about...

[ayan]

Hey Gil

You mean this ole piece a crap!

I probably would have phrased it slightly differently, but yep, that' the one.

[talbany]

Erwin
wire in FBC amp was cloth covered solid core wire from mojotone given to me from VVT Amps because they did not like it for some reason.

I probably would have phrased it slightly differently, but yep, that' the one.

Gil
The dilemma I had with that amp was,I had 2 choices
1. Dissect the amp which would have involved removing some parts for testing and quite possibly disturbing whatever was causing the amp to do what it was doing?
2.Leave the amp alone and preserve the anomaly!

I choose #2. I scoped the thing then had others scope the thing and theories mounted but the only way to confirm the theory's we suspected was to take the amp apart and even then no guarantees we would find it so I could not bring myself to putting an iron to it..Someone finally offered an insane amount of money so I took it and ran

Anyway thanks to all your great advice over the years I think I can do it again.

Tony

[ayan]

Erwin
wire in FBC amp was cloth covered solid core wire from mojotone given to me from VVT Amps because they did not like it for some reason.

I probably would have phrased it slightly differently, but yep, that' the one.

Gil
The dilemma I had with that amp was,I had 2 choices
1. Dissect the amp which would have involved removing some parts for testing and quite possibly disturbing whatever was causing the amp to do what it was doing?
2.Leave the amp alone and preserve the anomaly!

I choose #2. I scoped the thing then had others scope the thing and theories mounted but the only way to confirm the theory's we suspected was to take the amp apart and even then no guarantees we would find it so I could not bring myself to putting an iron to it..Someone finally offered an insane amount of money so I took it and ran

Anyway thanks to all your great advice over the years I think I can do it again.

Tony

I hear you. It's hard to say why things are the way they are, when it comes to amps that is. I remember that of the amps I built, some just sounded more to my liking than others no matter what I did. I could make changes to all of them, and maybe for the better. But the better ones always ended up being the better ones, no matter what. I'm sure the same happens with Dumbles. LC's Dumble's has been modified many times in the 20+ years that LC played it as his main amp. Since the early days, that amp would sing like there's no tomorrow -- the "Last Nite" live album being an early example of it. By the time Brandon serviced it, even though the amp had been turned into a Ripper, Brandon said the the thing would feedback like crazy on the clean channel, with no boost required, like no other amp he'd ever played. Seems to me like that amp was special since day one.

Goo luck in the next build!

G.

[talbany]

Erwin
wire in FBC amp was cloth covered solid core wire from mojotone given to me from VVT Amps because they did not like it for some reason.

I probably would have phrased it slightly differently, but yep, that' the one.

Gil
The dilemma I had with that amp was,I had 2 choices
1. Dissect the amp which would have involved removing some parts for testing and quite possibly disturbing whatever was causing the amp to do what it was doing?
2.Leave the amp alone and preserve the anomaly!

I choose #2. I scoped the thing then had others scope the thing and theories mounted but the only way to confirm the theory's we suspected was to take the amp apart and even then no guarantees we would find it so I could not bring myself to putting an iron to it..Someone finally offered an insane amount of money so I took it and ran

Anyway thanks to all your great advice over the years I think I can do it again.

Tony

I hear you. It's hard to say why things are the way they are, when it comes to amps that is. I remember that of the amps I built, some just sounded more to my liking than others no matter what I did. I could make changes to all of them, and maybe for the better. But the better ones always ended up being the better ones, no matter what. I'm sure the same happens with Dumbles. LC's Dumble's has been modified many times in the 20+ years that LC played it as his main amp. Since the early days, that amp would sing like there's no tomorrow -- the "Last Nite" live album being an early example of it. By the time Brandon serviced it, even though the amp had been turned into a Ripper, Brandon said the the thing would feedback like crazy on the clean channel, with no boost required, like no other amp he'd ever played. Seems to me like that amp was special since day one.

Goo luck in the next build!

G.

Yep I remember hearing stories of the LC amp having the mojo. If the thing fedback like crazy as a LP Classic?. Going to a Ripper would IMO only intensify it .. Last night and the Jing Chi are my 2 iconic D-tones
It always seems like we are chasing the same thing!
That last 5%.
BTW..If I can get this next amp to do it..I am shipping it out to you.If you can't find it nobody can!!. You have my permission to take it apart

Tony

[ayan]

Yep I remember hearing stories of the LC amp having the mojo. If the thing fedback like crazy as a LP Classic?. Going to a Ripper would IMO only intensify it .. Last night and the Jing Chi are my 2 iconic D-tones
It always seems like we are chasing the same thing!
That last 5%.
BTW..If I can get this next amp to do it..I am shipping it out to you.If you can't find it nobody can!!. You have my permission to take it apart

Tony

Shyte, if you get the new amp to do "it," I'll probably want to keep it. Looking forward to hearing about how it turns out.

[Chris Brown]

Dumble has been known to influence positive feedback into a circuit through the routing of certain wires in close proximity to one another...Like Gil mentions these practices have the tendency to make the amp unstable. The trick is knowing which ones you can play with and which ones you can't

BTW.Don't ask which ones go where..I have no idea.

Tony

Hey Tony, in the end, what happened to "Feedback City"?

G.

Here I am reading some thread randomly and I stumble on to a continuation of tag's greatest mystery.

[Mark]

Since the early days, that amp would sing like there's no tomorrow -- the "Last Nite" live album being an early example of it. By the time Brandon serviced it, even though the amp had been turned into a Ripper, Brandon said the the thing would feedback like crazy on the clean channel, with no boost required, like no other amp he'd ever played. Seems to me like that amp was special since day one.

How does an amp feedback on clean?

I'd imagine the amp would have to be very loud to establish a feedback path from the speaker to guitar and through the amp.

The other thing with positive feedback how do you stop it becoming an annoying oscillation within an amp?
The last thing you want to do is play a note and have a bite to eat and find the amp is still singing when you return.

[ayan]

How does an amp feedback on clean?

I'd imagine the amp would have to be very loud to establish a feedback path from the speaker to guitar and through the amp.

The other thing with positive feedback how do you stop it becoming an annoying oscillation within an amp?
The last thing you want to do is play a note and have a bite to eat and find the amp is still singing when you return.

I'm sure the volume would need to be fairly high for that to happen, but I never played that amp so I wouldn't know for sure. I think the nice thing about getting the positive feedback to happen is that the louder you are, the less gain you will need (or be able to control, as you hint at) to get good sustain. Still, I never good the clean channel on my amps to do that. With the PAB and lots of volume, maybe.

I've posted this link before, still one of the best ones out there to showcase the ultimate LC tone IMHO.




Cheers,

Gil

[pompeiisneaks]

Ayan,

I edited your post to fix the youtube link. It's a bit weird, but basically you just put the part that's the random string like x8in2v8s3 at the end, since there are like 40 different ways youtube provides links, that one part is all that really defines it

~Phil

[Mark]

Hmm, I wonder why BB King didn't use such as amp? (Larry brought it up.)

[Charlie Wilson]

Hmmm, is Larry Carlton using a Dumble or a Mesa Boogie with a lot of delay?
CW

[erwin_ve]

Hmmm, is Larry Carlton using a Dumble or a Mesa Boogie with a lot of delay?
CW

In the video between 3.16-3.22 you can spot the Dumble and.... is that a Boogie rack below?

[pompeiisneaks]

Hmm, I wonder why BB King didn't use such as amp? (Larry brought it up.)

You know that's the first thing I though when I listened to this clip, man Larry sure sounds a bit like B.B. King here It definitely started to morph after that quite a bit, but I love B.B. and wish I would have been able to see him live before he left us. An amazing talent. I had to google it, as I didn't know but I felt pretty sure (and was right) that he used a fender. Says on at least one site he used a Fender Deluxe. I have always loved the 335 tone but never had the money for one. I bought an epiphone 339 to get close

~Phil