BlackStar - HT-DUAL
- Dirk_Hendrik
- Old Solderhand
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- culturejam
- Old Solderhand
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- RnFR
- Old Solderhand
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GREAT job! should we delete the old schemos then?
"You've converted me to Cubic thinking. Where do I sign up for the newsletter? I need to learn more about how I can break free from ONEism Death Math." - Soulsonic
Blog-APOCALYPSE AUDIO
Blog-APOCALYPSE AUDIO
- ebuprofen
- Breadboard Brother
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- Posts: 133
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- Completed builds: http://ebupro.blogspot.com/
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OMG, that is some hard work done
I am so confused with the schematic, I am trying to extract the DistX part anyone got that?
I am so confused with the schematic, I am trying to extract the DistX part anyone got that?
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- Joined: 16 Oct 2009, 11:05
Have anybody tried to build this pedal?
Cause I want one
Cause I want one
- Dirk_Hendrik
- Old Solderhand
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Buy one.ManicSubsidal wrote:Have anybody tried to build this pedal?
Cause I want one
Looking at the amount of time, money and effort in making the PCB's, sourcing and buying the components, building the thing and finally debugging it, the real thing is a bargain.
Can someone please provide some more details about the EMI suppression filters FILT1/2, IND1- 4 and C1/2?
It looks like 2 of the 3 terminals of C2 are shorted.
It looks like 2 of the 3 terminals of C2 are shorted.
- DrNomis
- Old Solderhand
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- my favorite amplifier: Self-Built Valve Amp Head :)
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I wouldn't mind building one of these too,as I'm really getting into the sound of Tube/Valve based distortion stompboxes,i was considering building myself a Matchless Hotbox one day....
Genius is not all about 99% perspiration, and 1% inspiration - sometimes the solution is staring you right in the face.-Frequencycentral.
- bajaman
- Old Solderhand
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another convertI'm really getting into the sound of Tube/Valve based distortion stompboxes
Sorry Simon - check the schematic first - very complex circuit BUT the distortion is not just the tubes
be kind to all animals - especially human beings
- DrNomis
- Old Solderhand
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- Posts: 6804
- Joined: 16 Jul 2009, 04:56
- my favorite amplifier: Self-Built Valve Amp Head :)
- Completed builds: Dallas Arbiter Fuzz Face,Tone Bender Professional Mk 3,Tone Bender 3-Knob,Baja BK Butler Tube Driver,Baja Real Tube Overdrive,Roger Mayer Octavia,EH Soul Preacher,Tech 21 XXL Distortion,MFOS Weird Sound Generator.
- Location: Darwin,Northern Territory Australia
- Has thanked: 98 times
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bajaman wrote:another convertI'm really getting into the sound of Tube/Valve based distortion stompboxes
Sorry Simon - check the schematic first - very complex circuit BUT the distortion is not just the tubes
Yep....*says with Evangelical gusto*..."I have seen the light"...(pun fully intended)..*then realizes that he was looking at something completely irrelevant*....just kidding..rofl...
Thanks for warning me about the schematic complexity mate,I'll make sure I give it a good study BEFORE I even contemplate starting a build of this,usually that's what I do first off....
With the PCBs are you going to do pretty much same as for the Real Tube Overdrive?,sorry to pester you about this.....
And,of course I read your warning about the Switchmode Power Supply too....
Genius is not all about 99% perspiration, and 1% inspiration - sometimes the solution is staring you right in the face.-Frequencycentral.
- Dirk_Hendrik
- Old Solderhand
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bump for a worthy thread.
Dead blackstar. Measure the footswitch.... contact contact. Switch over to the other side. no contact, no contact.
replaced switch. All switching works fine but always by stepping twice..weird
back to this thread...
the switch is a momentary...
Dead blackstar. Measure the footswitch.... contact contact. Switch over to the other side. no contact, no contact.
replaced switch. All switching works fine but always by stepping twice..weird
back to this thread...
the switch is a momentary...
- pietro_moog
- Breadboard Brother
Wow! this is opamp?
i thought this was a tube pedal!
i thought this was a tube pedal!
- Ice-9
- Degoop Doctor
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Just because there is a valve in there doesn't mean the clipping comes from the vale, for instance the MARSHALL JMP1 Valve peamp gets most of its clipping from opamp and diode clipping.pietro_moog wrote:Wow! this is opamp?
i thought this was a tube pedal!
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !
No silicon heaven ? preposterous ! Where would all the calculators go ?
No silicon heaven ? preposterous ! Where would all the calculators go ?
I am an extremely HT Dual user, although I wouldn't have the guts to attempt building a DIY version ....
Actually the one I have is the 2nd (the first one was stolen).........now here's the news
The new one I just got SOUNDS DIFFERENT (Better !!!, way more fluid, specially in channel one), and comes with a 24V switchmode wallwart !!!!!! the previous one had a 12V or 16V wallwart if I'm not wrong.....so probably they have made some adjustments in the circuit.
BTW I also exchanged the stock Sovtek 12AX7WA by a Groove Tubes 12AX7AC5HG and I guess that also contributes to the overall better sound.
Actually the one I have is the 2nd (the first one was stolen).........now here's the news
The new one I just got SOUNDS DIFFERENT (Better !!!, way more fluid, specially in channel one), and comes with a 24V switchmode wallwart !!!!!! the previous one had a 12V or 16V wallwart if I'm not wrong.....so probably they have made some adjustments in the circuit.
BTW I also exchanged the stock Sovtek 12AX7WA by a Groove Tubes 12AX7AC5HG and I guess that also contributes to the overall better sound.
- Dirk_Hendrik
- Old Solderhand
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So, for the Blackstar owners,
DO locate the 1 meg and 8k2 voltage divider that feeds the high voltage back to the controller chip. Replace these 2 resistors, especially the 1 Meg, to a resistor with a higher power rating than the 0.25 watts that is in there now. Might save you dead HV caps and a burned power FET long term.
DO locate the 1 meg and 8k2 voltage divider that feeds the high voltage back to the controller chip. Replace these 2 resistors, especially the 1 Meg, to a resistor with a higher power rating than the 0.25 watts that is in there now. Might save you dead HV caps and a burned power FET long term.
- Lonkero
- Solder Soldier
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I bought this pedal a week ago and it sounds great.
But the schematics I looked way over my head, very complicated. But I'm curious to know how much indeed does the valve contribute to sound on this? I've heard on these tube pedals op-amp(s) give some pre-gain before signal entering to tube, but how much that's an intresting question
How about gain adjusting? Does it actually control the gain of the tube or is the tube's condition fixed so that adjusting gain only affects on solid state of the pedal?
Overall, in what measure can you call this a real tube pedal? Or despite the ht voltage would you categorize it the same way like many others using starved plate design?
But the schematics I looked way over my head, very complicated. But I'm curious to know how much indeed does the valve contribute to sound on this? I've heard on these tube pedals op-amp(s) give some pre-gain before signal entering to tube, but how much that's an intresting question
How about gain adjusting? Does it actually control the gain of the tube or is the tube's condition fixed so that adjusting gain only affects on solid state of the pedal?
Overall, in what measure can you call this a real tube pedal? Or despite the ht voltage would you categorize it the same way like many others using starved plate design?
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- Joined: 14 Feb 2010, 00:06
Anyone knows the value of the filter (FILT2) in the last schematic??
My Dist is broken, I've open it and saw that the inductor was dead...I want to replace it but I don't know te value...
My Dist is broken, I've open it and saw that the inductor was dead...I want to replace it but I don't know te value...