Search found 34 matches

by gmule12
Sun Dec 30, 2018 10:07 pm
Forum: Dumble Discussion
Topic: My Dumble hrm needs help . Please.
Replies: 49
Views: 6341

Re: My Dumble hrm needs help . Please.

Put master at 2, does master has anything to do with overdrive channel, i thought the masters is only for clean channel.
by gmule12
Sun Dec 30, 2018 8:09 pm
Forum: Dumble Discussion
Topic: My Dumble hrm needs help . Please.
Replies: 49
Views: 6341

Re: My Dumble hrm needs help . Please.

The other leg is moving as well would you believe it i never see anything like this before.
by gmule12
Sun Dec 30, 2018 8:05 pm
Forum: Dumble Discussion
Topic: My Dumble hrm needs help . Please.
Replies: 49
Views: 6341

Re: My Dumble hrm needs help . Please.

Apologies guys. I run through the hole Amp again and i find the problem. It was capacitor coming into pin1 of the V2 valve. I'm adding the photograph and you're not going to believe it. I changed the capacitor few months ago when i was turning standard Hrm into MK2 , as the old one didn't look too h...
by gmule12
Fri Dec 28, 2018 10:48 pm
Forum: Dumble Discussion
Topic: My Dumble hrm needs help . Please.
Replies: 49
Views: 6341

Re: My Dumble hrm needs help . Please.

This is my old video I make for my father with fender devill and jojo hot plexi and dd3 and gopro camera, man it was heaven in the room I was hopping to have better tone with Dumble.

https://www.youtube.com/watch?v=oV-e0dML9MA

https://www.youtube.com/watch?v=qp8zdLVKZ74
by gmule12
Fri Dec 28, 2018 10:28 pm
Forum: Dumble Discussion
Topic: My Dumble hrm needs help . Please.
Replies: 49
Views: 6341

Re: My Dumble hrm needs help . Please.

ok, if I set Master to 1 or 2 and first Volume about half way which is a clean channel ok then amp is very very quiet. Then in to OD with no PAB jet, and OD control are at 4, there is a big jump of volume , but l couldn't call that overdrive, it's more like fender hot rod devill on clean channel wit...
by gmule12
Thu Dec 27, 2018 8:46 pm
Forum: Dumble Discussion
Topic: My Dumble hrm needs help . Please.
Replies: 49
Views: 6341

Re: My Dumble hrm needs help . Please.

Ok. First sorry for bad comment about ceriatone. I didn't mean to offend anyone and specially Nik. I changed everything to standard hrm now. I never have a chance to play at another ceriatone dumble hrm so it's very hard justified how this amp should sound . Maybe i was expecting too much from it. O...
by gmule12
Mon Dec 24, 2018 12:22 pm
Forum: Dumble Discussion
Topic: My Dumble hrm needs help . Please.
Replies: 49
Views: 6341

Re: My Dumble hrm needs help . Please.

Thank you for reply. My amplifier is from ceriatone and it is mk2 . My problem is that amplifier does not feel have a lot of gain it's more like a crunch but i need to push down very hard in the volume. I'm using 4 by 12 cab with celection g1275. Amplifier by itself does not have muche gain only wit...
by gmule12
Sun Dec 23, 2018 4:05 pm
Forum: Dumble Discussion
Topic: My Dumble hrm needs help . Please.
Replies: 49
Views: 6341

My Dumble hrm needs help . Please.

Where to start. It's been a long journey with my amplifier. At start it was built with a 6 l 6, few months ago l change it to el34. My problem is that i feel there's no overdrive in this amplifier. All switches are solder and wired properly i check this 20 times. All voltages are correct. But amplif...
by gmule12
Wed Oct 11, 2017 1:45 pm
Forum: Marshall Discussion
Topic: 2555 voltages issues. help
Replies: 17
Views: 1952

Re: 2555 voltages issues. help

Hi everyone. Ok , I was on the phone with guy who sold me the el34l jj tubs and after testing them, hi said that tubes are ok . Ok or not? Before I send them I try set bias, in ceriatone we have slot for every tube socket for bias ok. Now. 1 tube reading was very of 51 mv where another three have 37...
by gmule12
Sat Oct 07, 2017 8:07 am
Forum: Marshall Discussion
Topic: 2555 voltages issues. help
Replies: 17
Views: 1952

Re: 2555 voltages issues. help

All pins and wires are connected properly. I send power tubes back. I will rapport you back about the voltage when I get new ones. Thanks for your input. It's nice when you can found people ready to help.
by gmule12
Fri Oct 06, 2017 3:33 pm
Forum: Marshall Discussion
Topic: 2555 voltages issues. help
Replies: 17
Views: 1952

Re: 2555 voltages issues. help

But if you think about resistor bad grounding. I swap tubes a cross and the reading was the same as in the first tube socket.
by gmule12
Fri Oct 06, 2017 3:31 pm
Forum: Marshall Discussion
Topic: 2555 voltages issues. help
Replies: 17
Views: 1952

Re: 2555 voltages issues. help

Yes It is. Ceriatone has external bias port on the back. And 1R resistor, way?
by gmule12
Thu Oct 05, 2017 8:01 pm
Forum: Marshall Discussion
Topic: 2555 voltages issues. help
Replies: 17
Views: 1952

Re: 2555 voltages issues. help

Sorry for error, the v1 is the first pre-amp tube and it is 12AX7 . maybe this will help as I thing l have one power tube with very bad bias reading, my bias is set 37mV but one tube has 51 mV . l took out two tubes and the voltage go up in HT to 470V but that is normal as there is no two tubes and ...
by gmule12
Thu Oct 05, 2017 6:34 am
Forum: Marshall Discussion
Topic: 2555 voltages issues. help
Replies: 17
Views: 1952

Re: 2555 voltages issues. help

:cry: Hello.Hello.
by gmule12
Wed Oct 04, 2017 8:01 pm
Forum: Marshall Discussion
Topic: 2555 voltages issues. help
Replies: 17
Views: 1952

Re: 2555 voltages issues. help

ok this is my voltage's pin 1 pin 3 pin 4 pin 5 pin 6 pin 8 v1 246 1.9 215 1.5 v2 226 1.6 118 0.4 v3 256 39 250 39 v4 37 mv 437 431 -39 436 v5 v6 any below is the same v7 idle is 440 and voltage at standby switch is 2x190 thanks for your time mate.