Parentheses Fuzz - GE diode
- Thread starter Diatrive
- Start date
the_grumpy_gnome
Active member
1N34 are standard germanium (GE) diodes.
https://www.mammothelectronics.com/search?q=germanium&type=product
The 160 should be fine.
or
Also, eBay. Search for "1N34A diode"
https://www.mammothelectronics.com/search?q=germanium&type=product
The 160 should be fine.
or
Also, eBay. Search for "1N34A diode"
Nostradoomus
Well-known member
Be careful to measure them too, some old GE diodes have the black band on the positive side.
Robert
Reverse Engineer
As long as you install them both the same way, it'll be fine. They were installed backwards in the original!
Nostradoomus
Well-known member
Yes, I’ll pay 400 dollars for one!
Devoureddeth
Active member
As long as you install them both the same way, it'll be fine. They were installed backwards in the original!
Maybe it was intentional? People were posting higher quality clips and I could not hear an octave of any sort in the audio even with it cranked it just sounded like more fuzz.
the_grumpy_gnome
Active member
if the diodes are swapped it's no going to make a difference (as long as they're anti-parallel they do the same thing.
eh, apparently the octave isn't super noticeable, but I bet youtube's compression isn't helping
eh, apparently the octave isn't super noticeable, but I bet youtube's compression isn't helping
Nostradoomus
Well-known member
Were they playing above the 12th fret? I can imagine most vids of it are from doom caveman riff dudes hah
StephanCOH
Member
I still don't get it, why a "SUNN O)))" pedal of all things would need an octave up. It should be an octave down for me.
Nostradoomus
Well-known member
Life Metal is definitely a higher frequency album and that’s the tone the pedal is supposed to bring
Robert
Reverse Engineer
I thought the same thing, and I really know nothing about them.
In this case the octave has more of a tonal effect than a pitch shift.
the_grumpy_gnome
Active member
Oh, it's likely not a traditional octave effect. It's probably yeah, a tonal thing: Sunn 0))) usually downtune and play on the open-4th frets of the lowest strings. An octave doubles this frequency and likely adds some body content to the signal (instead of alllllllll super low end). The fact that it doesn't really after the 12th fret is probably a bug-turned-feature: It may naturally crap out there, but you probably wouldn't want much higher content added in when you're already that high.
Nostradoomus
Well-known member
I’ll just have to make a demo with my guitar tuned to F# when I build it.
Fingers crossed it’s in the mail box today!
Fingers crossed it’s in the mail box today!
Devoureddeth
Active member
Here is a a project that was smattering of odd tunings starting at G#. I listen to the demo on youtube and think wow that was stupid.I’ll just have to make a demo with my guitar tuned to F# when I build it.
Fingers crossed it’s in the mail box today!
Nostradoomus
Well-known member
Hahaha I still really like it but I play in an open tuning so it’s not too caveman-ish
StephanCOH
Member
If it is indeed the circuit from the EQD Tentacle, it probably does not add much that useful to the overall tone.
I built a clone of it and tried to integrate it into my board about a year ago. I am tuned to C-Standard and play with a decent amount of fuzz and overdrive. On the lower frets it sounded like a tad more distortion had been added, on the higher ones it did an ok kind of octave.
Tried a couple of positions in the chain but finally took if off the board again.
Again, in context to Sunn O)))s tone I do not see that much use of it either. Harmonic distortion and overtones are the thing I expect from them, besides the sheer volume and low end rumble.
I built a clone of it and tried to integrate it into my board about a year ago. I am tuned to C-Standard and play with a decent amount of fuzz and overdrive. On the lower frets it sounded like a tad more distortion had been added, on the higher ones it did an ok kind of octave.
Tried a couple of positions in the chain but finally took if off the board again.
Again, in context to Sunn O)))s tone I do not see that much use of it either. Harmonic distortion and overtones are the thing I expect from them, besides the sheer volume and low end rumble.
Crookedtooth
Member
Hi there! Looking forward to building this one and was happy somebody else asked the Ge questions already. Follow-up: Can you use a BAT46 instead of the 1N34 or any other Germanium diode? Thanks!
DGWVI
Well-known member
Yup! Any small signal diodes will work.
Chuck D. Bones
Circuit Wizard
As PedalPCB mentioned near the top of this topic, the Ge diodes are installed "backwards" in the EQD pedal. This only works because Ge diodes are leaky. If you use Si or Schottky, you should install the diodes in the forward direction, reversed from the silkscreen. If you socket the diodes, you can try it both ways and see which works and which doesn't. Some Schottky's are leaky enough to work if they are installed "backwards."
