Search found 459 matches
- Thu Apr 25, 2024 2:48 pm
- Forum: Dumble Discussion
- Topic: Dumble ODS 102 build
- Replies: 15
- Views: 761
Re: Dumble ODS 102 build
This is a really simple and effective way to find the outer foil of your caps. Sometimes the difference is subtle, so I prefer using a DMM or scope to get a quantitative measurement. That is true Martin. But worth a try before buying a scope. If my memory serves me correctly, most of the preamp sig...
- Wed Apr 24, 2024 6:10 pm
- Forum: Dumble Discussion
- Topic: Dumble ODS 102 build
- Replies: 15
- Views: 761
Re: Dumble ODS 102 build
This is a really simple and effective way to find the outer foil of your caps.
https://www.youtube.com/watch?v=1f-LdpJiAk4
No scope or box required.
https://www.youtube.com/watch?v=1f-LdpJiAk4
No scope or box required.
- Mon Jul 24, 2023 6:28 am
- Forum: Dumble Discussion
- Topic: BM OD low level
- Replies: 5
- Views: 796
Re: BM OD low level
It’s worth remembering that the OD of a BM is traditionally used in conjunction with PAB. If OD+PAD is lacking in volume, then yes, you have an issue, but it’s normal for a BM OD without PAB engaged to be lower volume.
I hope that helps.
I hope that helps.
- Mon Mar 20, 2023 7:13 am
- Forum: Dumble Discussion
- Topic: Transformer problem Dumble 50
- Replies: 38
- Views: 3730
Re: Transformer problem Dumble 50
Hi, I believe at one point (possibly still) inmadout https://www.inmadout.com/contact.asp made/makes transformers for tubetown. I custom ordered one directly, with spec’d voltages and was really pleasantly surprised at how good and accurate the voltages were. It made the build a dream amp. Good luck...
- Fri Aug 19, 2022 2:07 pm
- Forum: Dumble Discussion
- Topic: Dumble Ripper layout
- Replies: 15
- Views: 3068
Re: Dumble Ripper layout
I would start here and follow the layout on the pics C.W gave us Ripper Version 2 (1).pdf BTW. You could also set up V2/ CF like this which is consistent with Dumble's "high gain mod" 189 CF.pdf Very nice work on the layout. Tony Hi Tony, I hope you are well! I'm in the process of starting a Ripper...
- Sat Jun 05, 2021 8:21 am
- Forum: Dumble Discussion
- Topic: Hey Robben, where's your Dumble?
- Replies: 75
- Views: 19960
Re: Hey Robben, where's your Dumble?
Robben talks about why he has started using the LW amps in this episode of Guitar Wank. It’s always interesting to listen to Robben but if you want to jump to the amp discussion part, it’s from about 23minutes. https://podcasts.apple.com/gb/podcast/guitarwank/id1076152868?i=1000517928089 Pretty much...
- Fri Jul 03, 2020 9:43 am
- Forum: Dumble Discussion
- Topic: I'm in trouble with this sound
- Replies: 19
- Views: 2991
Re: I'm in trouble with this sound
Hi Dariez, I had a similar problem with one of my new build amps. I went through everything to try to fix it and was almost ready to put it in the trash. However, 2 things were causing the issue. Apologies if they have been mentioned already. 1, Switchcraft switching jacks which had a bit of dirt in...
- Fri Sep 20, 2019 3:27 pm
- Forum: Dumble Discussion
- Topic: Reprise NOS Old Dale RN65D vs NEW Dale RN65D
- Replies: 192
- Views: 16245
Re: Reprise NOS Old Dale RN65D vs NEW Dale RN65D
Apologies for being late to the party, but thank you Erwin for doing all of this, and for such great playing/tones. Damn it man, you just keep getting better :wink: Having listened to the samples myself, on a modest studio setup, there are distinct differences in the two samples. Most clearly in the...
- Thu Jul 18, 2019 11:26 pm
- Forum: Dumble Discussion
- Topic: #183 Build 50w
- Replies: 32
- Views: 5408
Re: #183 Build 50w
Wow, that is a thing of beauty - well done! I've always wanted to do a 50W #183, but have always wondered what to do about the trannies. As the original #183 used out of spec Twin iron running a quad of EL34's, surely if you did a 50W version you would have to factor in the out of 'specness', to ge...
- Tue May 21, 2019 5:23 pm
- Forum: Dumble Discussion
- Topic: Pics of "183
- Replies: 10
- Views: 1751
Re: Pics of "183
Oddvar R, As others have mentioned, you really need to sort out the polarity of your filter caps, particularly the F&T's. They will explode spectacularly if you keep them as they are! Also, as much as we all have opinions on components choice etc, the one thing I think we all agree on, that is cruci...
- Wed May 15, 2019 7:30 am
- Forum: Dumble Discussion
- Topic: V1b conection?
- Replies: 14
- Views: 1245
Re: V1b conection?
Thanks a lot for this. I must admit this build is a difficult one for me. I juggle between two different layouts, and they are not entirely the same ones. I'd definitely recommend working with the schematic in conjunction with the layout. That way you can get confirmation of any queries you have ab...
- Fri Feb 22, 2019 11:47 am
- Forum: Dumble Discussion
- Topic: Audio clip of my 2nd gen ODS
- Replies: 25
- Views: 2281
Re: Audio clip of my 2nd gen ODS
Really, really nice tones there Marcus! Obviously, having your fingers helps.....excellent playing!
Did you put a MV on OD in your 2nd Gen, as with the hybrid?
Thanks for posting.
Cheers,
Paul.
Did you put a MV on OD in your 2nd Gen, as with the hybrid?
Thanks for posting.
Cheers,
Paul.
- Sun Jan 13, 2019 2:32 pm
- Forum: Dumble Discussion
- Topic: #124 Questions
- Replies: 457
- Views: 54079
Re: #124 Questions
It's worth being aware that UK (and elsewhere) mains can be quite variable (+/- 10%), depending on where you live also, eg. city or countryside. Ours is 245V quite often. If you set it to 220V then you are going over by a good bit, particularly once it has been rectified. Check your mains supply on ...
- Fri Jan 04, 2019 2:20 pm
- Forum: Dumble Discussion
- Topic: Starting a Bluesmaster 100 HRM
- Replies: 39
- Views: 4568
Re: Starting a Bluesmaster 100 HRM
So the amp doesn’t sound as dirty as I expected. Even the Overdrive channel is fairly clean unless I flip up the rock switch. Only the normal input works and not the FET. Here’s a couple finished photos and some voltages. B+ 454v 1 454v 2 452v 3 431v 4 318v 5 311v 6l6 plates 456v V1: pin 1 202v pin...
- Sun Nov 11, 2018 9:41 am
- Forum: Dumble Discussion
- Topic: Mid-90s Skyline HRM w/EL-34
- Replies: 17
- Views: 2158
Re: Mid-90s Skyline HRM w/EL-34
Hi jfs322, This is a schematic of an actual 90's HRM w/EL34, observed by ic-racer, so it is well documented and has everything you need. https://ampgarage.com/forum/files/ods_102_hrm_158.pdf Follow his build here: https://ampgarage.com/forum/viewtopic.php?f=4&t=9772&hilit=new+hrm+build I see that a ...