Haunting Mids V3 [traced]
- mmolteratx
- Degoop Doctor
- tube-exorcist
- Resistor Ronker
Who is the genius "designer" of this unit ? Using 3,3V zener-diodes in an antiparallel configuration so that they act as normal silicon diodes ?
"I've noticed there's an inverse relationship between cost of gear and talent. If you need the most expensive gear to get decent tones, then you suck as a player."
- Skreddy
- Resistor Ronker
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I thought those were 12v zener diodes. I believe it was designed by the Montgomery Appliances guy, and I think it looks (and sounds) swell.tube-exorcist wrote:Who is the genius "designer" of this unit ? Using 3,3V zener-diodes in an antiparallel configuration so that they act as normal silicon diodes ?
- mmolteratx
- Degoop Doctor
Yup. 4742 is a 12V zener.
- Skreddy
- Resistor Ronker
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Yeah, completely new design from the first one. This is of course a BMP minus tone stack and its recovery stage, plus fatter caps and novel clipping diodes.bubstance wrote:Mmm, muffy.
So they (whoever) changed from the whole "NPN silicon into PNP germanium" thing, eh? The last gutshot I remember seeing of one of these had 4 transistors.
- IvIark
- Tube Twister
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Muff-elicious. I had to have the gain pot external for personal preference with a muff, but you could always replace it with a trimmer if you prefer it like the original. The Alps RH06 trimmers have long leads and could be used for that span, or alternatively a small trimmer daughterboard with flying leads could be used.
"If anyone is a 'genius' for putting jacks in such a pedal in the only spot where they could physically fit, then I assume I too am a genius for correctly inserting my legs into my pants this morning." - candletears7 - TGP
- Whoismarykelly
- Resistor Ronker
I selected the 4742 because I had some on hand when I prototyped this circuit and I didn't have 914s. I stuck with them because they are big and fat and they look cool, and I knew they would some day troll fsb.orgtube-exorcist wrote:Who is the genius "designer" of this unit ? Using 3,3V zener-diodes in an antiparallel configuration so that they act as normal silicon diodes ?
The circuit is influenced by Marc's work with the Mayo but has been chopped up a bit. Its extremely bassy and has been popular with bass players maybe moreso than guitar players.
- tube-exorcist
- Resistor Ronker
Does that make a big difference ?:Skreddy wrote:I thought those were 12v zener diodes.tube-exorcist wrote:Who is the genius "designer" of this unit ? Using 3,3V zener-diodes in an antiparallel configuration so that they act as normal silicon diodes ?
they act as normal silicon diodes
"novelty" would be the right word:Skreddy wrote: ...and novel clipping diodes.
I selected the 4742 because .... I didn't have 914s. I stuck with them because they are big and fat and they look cool....
"I've noticed there's an inverse relationship between cost of gear and talent. If you need the most expensive gear to get decent tones, then you suck as a player."
- ppluis0
- Diode Debunker
[quote="Whoismarykelly]I selected the 4742 because I had some on hand when I prototyped this circuit and I didn't have 914s.[/quote]
The same criteria apply to use BC337 that is a general purpose NPN ?
How much noise reduction can we expect if build the same circuit using BC549, for example ?
Cheers,
Jose
The same criteria apply to use BC337 that is a general purpose NPN ?
How much noise reduction can we expect if build the same circuit using BC549, for example ?
Cheers,
Jose
- Whoismarykelly
- Resistor Ronker
Try it and see! I liked the sound of the 337 more than other transistors I tried. Other folks may like other things.
- phibes
- Transistor Tuner
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Yeah, FSB has been haunted by Big Muff clones for quite some time...Whoismarykelly wrote:and I knew they would some day troll fsb.org
GuitarlCarl - "TGP = The Gear Polishers"
Ken
Ken
- Whoismarykelly
- Resistor Ronker
A simplified and revoiced muff design is what people on the forum wanted so this circuit is what was designed and builtphibes wrote:Yeah, FSB has been haunted by Big Muff clones for quite some time...Whoismarykelly wrote:and I knew they would some day troll fsb.org
These pedals are community projects based on forumite requests. If everyone wants a spice box with stereo input and quadraphonic output next time then that will be the next one to come off the line
- ppluis0
- Diode Debunker
Thank you for your answer.Whoismarykelly wrote:Try it and see! I liked the sound of the 337 more than other transistors I tried. Other folks may like other things.
Perhaps a couple of BC337-16 also deserve to be tested into a Vox Wah clone to see what happens...
So, back to the topic: this pedal has only the knob to tweak the output volume, the led and the pushbutton at the front panel ?
Cheers,
Jose
- sonicmojo
- Breadboard Brother
I put this on my breadboard and I think it sounds pretty huge. I preferred 10K at R6 for use with an external gain pot and used 5088s in the 350hfe range. I think I may try a turret layout with some carbon comps and box it.
- mmolteratx
- Degoop Doctor
Yea, it's definitely got a ton of bass. Pretty picky about what you use with it as a result. Gotta have an amp with some decent headroom.
- Whoismarykelly
- Resistor Ronker
All the prototyping was done with a Hiwatt 100-watter and a 4x12.mmolteratx wrote:Yea, it's definitely got a ton of bass. Pretty picky about what you use with it as a result. Gotta have an amp with some decent headroom.
- danielzink
- Resistor Ronker
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Old thread I know....
But.
I've built one of these as per IvIark's layout above and I'm looking to get a little more output out of it.
As suggested by IvIark:
Anyone care to point me to which of these resistors I should be concerning myself with ?
Thanks !!
Dan
But.
I've built one of these as per IvIark's layout above and I'm looking to get a little more output out of it.
As suggested by IvIark:
Suffice to say that my assembly and troubleshooting skills far outweigh my circuit layout/tracing skills....You can increase the gain of the final stage by reducing the emitter resistor, or increasing the collector resistor.
Anyone care to point me to which of these resistors I should be concerning myself with ?
Thanks !!
Dan
http://www.danielzink.com
MoonWatcher wrote: Silent ain't better. If someone cracks the shitwind, I want to know what's headed my way. Silence is for the library and the cemetery.
- deltafred
- Opamp Operator
R14 = Emitter resistordanielzink wrote:Old thread I know....
But.
I've built one of these as per IvIark's layout above and I'm looking to get a little more output out of it.
As suggested by IvIark:
Suffice to say that my assembly and troubleshooting skills far outweigh my circuit layout/tracing skills....You can increase the gain of the final stage by reducing the emitter resistor, or increasing the collector resistor.
Anyone care to point me to which of these resistors I should be concerning myself with ?
Thanks !!
Dan
R16 = Collector resistor
Politics is the art of so plucking the goose as to obtain the most feathers with the least squawking. - R.G. 2011
Jeez, she's an ugly bastard, she makes my socks hurt. I hope it's no ones missus here. - Ice-9 2012
Jeez, she's an ugly bastard, she makes my socks hurt. I hope it's no ones missus here. - Ice-9 2012