Sunday 24 July 2016

Runoffgroove Condor Cab Sim

This was an old request.
You can find all info and schematic on Runoffgroove website here.


And a version with an added Notch Depth switch.

32 comments:

  1. No switch mod option Alex? Im being lazy....

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    1. Did you mean the Notch Switch? I've added it.

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  2. Thanks Alex you are a gentleman!

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  3. Hi alex, want to ask. Is that a pc software that is able to translate schematic to veroboard? If it is what is the software? Thanks

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  4. Hi John.
    There's no such a software.
    We all use DIY Layout Creator to draw them but you need to follow a schematic and decide where to place all the components by yourself.

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    1. Thanks Alex, I didn't know about DIY Layout Creator. I will check it out.

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    2. WE DONT NEED A COMPUTER PROGRAM WE HAVE ALEX ROCKETT MIROSOL SAVVAS AND IVIARK and the rest of the IvIasterminds making this site the best in the WORLD .

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    3. I think there are many auto-routing PCB/schematic apps out there. Usually costing thousands, due to being targeted at commercial and professional uses. There is no auto-routing app for stripboard that i'm aware of.

      What comes to DIYLC, i'm hoping someone would fork it and continue its development..
      +m
      +m

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  5. Thanks Alex i think this is a great addition to the site. Ill make it asap. Great Job

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  6. I can't seem to find any information on adjusting the Condor's 100k trimmer...can anyone tell me what target value I'm aiming for with that? Thanks!!!

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    1. Hi Brad. Just adjust it so the output does not distort. If you wind it back to far you will get a drop in output. If you wind it up to much your output will distort. Just use your ears for what you feel is best

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  7. If I run a distortion box in front of it and then straight to my JamHub, will it sound nice? I'm trying to find a good sound for the 'silent rehearsals' without having to take my amp and with me, only to use the (emulated 412) line out. I now use a behringer sansamp clone (TM300) to emulate an amp with a speaker for my clean sound with a dyna red distortion for crunch.

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  8. Verified the notch switch version! Again sounded best to me at 4.5v. Cheers Alex.

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  9. Did the etched version that's in rig site a while back. Works well, but is there a way to increase the overall volume? Found myself setting it somewhere over midpoint to get unity volume. Thanks.

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    1. *ROG site, sorry 'bout that.

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    2. *ROG site, sorry 'bout that.

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    3. Just read the following comments from ROG's "STM" on diystompboxes.com (http://www.diystompboxes.com/smfforum/index.php?topic=37902.0) and thought I'd add it here "for the record" on increasing output volume:

      "There is an easy way to get more output level from the circuit involving two resistors around U1A. Place a 100k resistor between pins 1 and 2 of U1A instead of the jumper, and then place a second 100k resistor between pin 2 of U1A and Vref. This will raise overall gain by 6 dB. If you make this second resistor equal to 47k, then you have 10 dB more output signal, while 33k will give you 12 dB's above the standard level. If you go too high with gain you will have clipping in U1A, which is not necessarily a bad thing, because it happens just before the fourth order low-pass filtering which will remove most of the annoying highs! Also, a good point of experimentation is to place a couple of silicon diodes or red LEDs between pins 1 and 2 of U1A, a la Tube Screamer!"

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  10. Any reason why this wouldn't work with a 2N5457 instead?

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  11. Hi. What's the difference between the circuit with 2 small ICs and the one with 1 big IC? Does this alter the final result in any way? Thank you!

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  12. Where are the sw3 and sw4? What is the location of sw numbers?
    Is it
    1-2
    3-4
    5-6 ?

    Cheers!

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  13. Replies
    1. How come?
      http://www.learningaboutelectronics.com/Articles/Toggle-switch-wiring.php

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  14. This comment has been removed by the author.

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  15. What are the green and white circles for on the layout?

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  17. For those who experienced clipping issues: Omit the input transistor. You don't need it when the Cabsim is placed after your preamp. Just plug the input wire to lug 2 of the trimmer (you don't need the trimmer either).
    Then you can place a 100k resistor between pins 1 and 2 of U1A instead of the jumper, and then place a second 100k resistor between pin 2 of U1A and Vref. This will raise some gain you lost by omitting the transistor.

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  19. Hi, the Runoffgroove post mentions this circuit was also designed to be used as an headphone amp. Has anyone tested this ?

    Would there be an issue wiring the output in a passive "mono to stereo" way ? Also if I wanted separated outputs (a mono line out and a stereo headphones out), I guess I should add a buffered splitter to feed the two outputs properly ?

    I am a bit late to the party but will be super grateful if anyone has answers :)

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