Search found 274 matches

by Dr d
Sat May 11, 2024 5:08 pm
Forum: Dumble Discussion
Topic: Robben Ford & His Dumble Overdrive Special
Replies: 9
Views: 246

Re: Robben Ford & His Dumble Overdrive Special

A few things stand out about this interview. First, there can never be enough examples of these amps being played, and I think if you have good sound, good headphones perhaps, you can get a pretty good sense of the tone and presence of the amp. I say presence in the sense of the sheer sound pressur...
by Dr d
Sat May 11, 2024 12:09 pm
Forum: Dumble Discussion
Topic: Robben Ford & His Dumble Overdrive Special
Replies: 9
Views: 246

Re: Robben Ford & His Dumble Overdrive Special

I think the value of the video was less about what RF had to say and more about how the amp responded to other musicians playing through it. The cleans of this amp were really quite a surprise to me. Gorgeous! I was never really impressed by RFs cleans in his recordings. Having the opportunity to he...
by Dr d
Sat May 11, 2024 6:56 am
Forum: Dumble Discussion
Topic: 2nd Gen Build
Replies: 48
Views: 2197

Re: 2nd Gen Build

Preamp glass for now. V1 and V2 are RCA grey plate 12AX7A. V3 is RCA black plate 12AT7. PXL_20240510_164414227.jpg Power tubes are fender branded Sylvania short bottle 6L6GC with double top getters. PXL_20240510_164448700.jpg When I swapped the tubes I noted 2 things. First, with the bias set most ...
by Dr d
Fri May 10, 2024 10:12 pm
Forum: Dumble Discussion
Topic: Robben Ford & His Dumble Overdrive Special
Replies: 9
Views: 246

Re: Robben Ford & His Dumble Overdrive Special

What a coup for "That pedal show"! We Brits know how to do an interview! Well spotted Ian. :D
by Dr d
Fri May 10, 2024 2:42 pm
Forum: Dumble Discussion
Topic: 2nd Gen Build
Replies: 48
Views: 2197

Re: 2nd Gen Build

All good with the smoke test and forming the caps. Put my startup tubes in and biased the amp. All functions are working. Tone stack is not super effective, but I think that is just the design. Reserving tone impressions as I only played briefly and at low volume. But does strike me as more raw sou...
by Dr d
Tue May 07, 2024 8:01 am
Forum: Dumble Discussion
Topic: 2nd Gen Build
Replies: 48
Views: 2197

Re: 2nd Gen Build

Looks fab! Bet you can’t wait to hear how it sounds. Once it’s up and running, the suggestions will come in as to how to fine tune it. Ian has shared a lot of very useful information and tips from his build.
by Dr d
Fri May 03, 2024 10:13 pm
Forum: Dumble Discussion
Topic: Tube Town Transformers
Replies: 4
Views: 256

Re: Tube Town Transformers

I think the main thing is to ascertain if the prices they advertise are inclusive of vat or not.
by Dr d
Wed May 01, 2024 7:24 am
Forum: Dumble Discussion
Topic: Bonamassa new amp day
Replies: 31
Views: 1498

Re: Bonamassa new amp day

ijedouglas wrote: Wed May 01, 2024 1:13 am Here is a clip of him playing it. Interesting he is going into the FET.

https://twitter.com/JBONAMASSA/status/1 ... 2958521497
Definitely sounds like a Dumble!
by Dr d
Sat Apr 27, 2024 5:02 pm
Forum: Dumble Discussion
Topic: Bonamassa new amp day
Replies: 31
Views: 1498

Re: Bonamassa new amp day

These amps are the tools of his trade. They are also his pension pot. He is only making hay while the sun shines. He fully admits that his future/career as a musician is full of uncertainty. I have seen him live a couple of times and he puts on a great show and is a great role model to young and up...
by Dr d
Sat Apr 27, 2024 4:59 pm
Forum: Dumble Discussion
Topic: Bonamassa new amp day
Replies: 31
Views: 1498

Re: Bonamassa new amp day

These amps are the tools of his trade. They are also his pension pot. He is only making hay while the sun shines. He fully admits that his future/career as a musician is full of uncertainty.
by Dr d
Sat Apr 27, 2024 9:16 am
Forum: Dumble Discussion
Topic: #54 (photos)
Replies: 46
Views: 11211

Re: #54 (photos)

Charlie Wilson wrote: Fri Apr 26, 2024 10:43 pm You duplicated the PI with a 12ax7?
CW
I must admit that I didn't get that far. Would the 12ax7 PI roll off tons of highs? The OD was very bright and harsh which is why I wondered if the OD entrance 1M2 bypass cap was maybe reduced in size. I should really revisit this.
by Dr d
Sat Apr 27, 2024 9:10 am
Forum: Dumble Discussion
Topic: #40 resistor choice
Replies: 59
Views: 6782

Re: #40 resistor choice

I have implemented a MV ala 102 and 183 : 1Meg volume pot out of the relay into the FX Loop, and I have an OD level and Master. I have added a bright cap on a MV on a previous build, subtle, yet interesting. For these amps, it is best to implement the Bluesmaster or Hybrid master volume setup other...
by Dr d
Fri Apr 26, 2024 12:59 pm
Forum: Dumble Discussion
Topic: #54 (photos)
Replies: 46
Views: 11211

Re: #54 (photos)

Again, I didn’t see this question. Sorry. No pictures that actually show the written value but it is a different cap than what is on the FET board. It looks 1uf to me. CW No problem! Thank you for your reply. I have tried to replicate this circuit, but couldn't replicate the "medium gain warm OD". ...
by Dr d
Thu Apr 25, 2024 4:44 pm
Forum: Dumble Discussion
Topic: Bluesmaster HRM question:
Replies: 90
Views: 3412

Re: Bluesmaster HRM question:

Did Dumble actually do this or is it just another TAG tweak? Excuse me, just another TAG tweak? ;^) Forgive me Martin! My comment was perhaps a little clumsy. Perhaps I am behind the curve, but as far as I know, Talbanys' Bluesmaster layout is the only reasonably accurate resource we have for this ...
by Dr d
Thu Apr 25, 2024 8:19 am
Forum: Dumble Discussion
Topic: Bluesmaster HRM question:
Replies: 90
Views: 3412

Re: Bluesmaster HRM question:

rootz wrote: Wed Apr 24, 2024 8:32 pm

I ended up installing a 100k pot instead of the 22meg resistor. Dumble did that too and just hang the pot between the bus bar and the mid pot.
Did Dumble actually do this or is it just another TAG tweak?