Saturday, 17 August 2019

Earthquaker Devices Tentacle

Finally updated with orientation of Q2 corrected.

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23 comments:

  1. Mulekicker17 August 2019 at 23:17

    Ha! I was just about to try and shrink the tagboardeffects layout down by a column to fit on the same piece of vero as a si bender (cause it wouldn't fit across a BB enclosure. Luckily I just checked here. Perfect!

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    1. fuzzhead18 August 2019 at 20:01

      Right on! I'm planning to build it as soon as PedalPCB upload the schematic for EQD/Sunn Life pedal which is a Tentacle, Rat and a FET booster...

      Delete
    2. Mulekicker18 August 2019 at 20:39

      Yep, I wanna build that too.

      Delete
  2. Mulekicker28 August 2019 at 16:47

    I might be wrong but i think q2 needs flipped so the collector goes to ground.

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  3. Mulekicker28 August 2019 at 17:29

    I tried it both ways and it works but if you flip it the octave is sharper and has more volume.

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    1. fuzzhead29 August 2019 at 04:50

      Thanks for the heads up, I'll update the layout soonish.

      Delete
  4. punkrawkgeek12 September 2019 at 08:38

    I think the LED+ and the Output (the words on the side) need to move up a row each. No?

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  5. punkrawkgeek13 September 2019 at 22:54

    Thanks! :)

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  6. Nath8726 June 2020 at 09:24

    Hi, I have no output. Checked for bridges and the usual subjects. I did notice i put a Diode (D1) backwards and fixed that but im not sure if i blew the diode or not. Any ideas?

    Also my LED is always on. Im using a DPDT Stomp switch. Any ideas for that also?

    Many thanks

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    Replies
    1. Nath8726 June 2020 at 09:25

      Forgot to click notify me so thats the reason for this comment

      Delete
  7. marios rappas31 July 2021 at 14:43

    I make it ,, great sound .. similar to green ringer but I think this is better … the green ringer have dry sound but tenacle have smooth and sustain sound … thanx again fuzzhead

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  8. Ian27 November 2021 at 22:23

    Just built this. It's so kooky. I have no idea where you'd use it but it's fun. Pair it with a muff and make a mufftacle?

    Thank you as always

    Ian

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  9. Ian28 November 2021 at 23:11

    https://youtu.be/lX__dLdjIjM

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  10. giudis2 June 2022 at 17:38

    I think 9v is connected on the first row and the downside of d3 goes to ground.....

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    1. Ian2 June 2022 at 19:28

      I've made this one and it works 👍

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    2. fuzzhead2 June 2022 at 21:49

      No, both 9v and Ground is at the right spots.

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  11. DoomOverlordWizard29 September 2022 at 19:54

    Made this one, it works pretty well. Honestly a little more subtle than I would have thought, and has a bit of gain/volume drop but my other green ringer was the same. I have to try running a boost after and seeing how that affects the circuit. But it definitely works

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  12. Lord Ashram24 January 2023 at 21:03

    Hi! Can someone give me a hint on how to match the transistors in this circuit? Thanks in advance!

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    1. fuzzhead25 January 2023 at 07:24

      No need for transistor matching. But you D1 and D2 needs to be matched for strongest octave up effect.

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    2. Ian25 January 2023 at 08:25

      These are great

      https://youtu.be/zDkU4M05DtA

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    3. Lord Ashram25 January 2023 at 21:21

      Thanks guys! I was wondering if the trannies would make a difference, guess I was wrong ;-). Ian - your tentacle sounds great! Looks even better!

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    4. Ian25 January 2023 at 23:06

      Thank you kindly. (I didn't know about matching the diodes... I'll look harder at them next time🧐😜)

      Delete

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