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Topics - Vivek_rc

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Build Reports / PT-80 with Bontempo module
« on: September 25, 2021, 11:26:28 PM »
Hi All,

Just completed a PT-80 where delay time (pin 6 of PT2399) and modulation is controlled by the bontempo kit. Has tap tempo, different tempo divisions, different modulation waveforms and a host of other features. Itís a fun pedal to make some interesting sounds.

Also my first attempt are copper sulphate etching of the enclosure, just used a black sharpie, as an etch resist, to label and draw some patterns. Happy with the outcome :). But definitely a very involved process.

Build Reports / Up Down Daddy - Delykpcb
« on: April 26, 2021, 06:03:34 AM »
Hi All,

Just wanted to share my build of the up down daddy pedal from Delykpcb. It was a very challenging build and Iím very grateful it worked first time. I used 1/8 W resistors but still had to stand them up. The pedal sounds great and octaves track very well.

General Questions / Bloodstone Phaser - Mad oscillation at output
« on: April 15, 2021, 06:19:40 AM »
Hi All,

Iíve built the bloodstone phaser from lectric-fx and it was working well as expected, had already been boxed and was still functioning even when boxed up. However after a hour of running it started to crackle and then just went into a mad oscillation. I audio probed it and find there is a high pitched whine sound from IC1 pin7 and along the path to the 3pdt color switch on A2/A1. Iím not sure where to start troubleshooting and have checked the voltages of the ICs and they all check out. Iím not sure about the voltages I should be expecting on the cd4009 and wondering if it is damaged. Iíve tried to reflow all the joints but still not getting anywhere. Itís weird cause it was working perfectly well but suddenly just went crazy . Any help and guidance would be appreciated.


General Questions / Dandy Horse - no output
« on: September 06, 2020, 03:21:19 AM »
Hi All,

I had just powered up my Dandy horse and it was going well, was able to bias and got a nice flange. All going good, had it running in the blend mode and then suddenly there was a lot of static. And now my effected signal has no output and only get the dry signal when I flip the blend switch. I checked everything, voltages all look good and I followed the biasing steps again, clock frequency is set correctly. But now I donít hear a signal on test Pad 6. I do hear a signal in test Pad 5. Iím connected SW1 and testing on a test box. So weird that it was working nicely and then boom...any help and advice would be appreciated

Sent from my iPhone using Tapatalk


General Questions / International shipping
« on: August 20, 2020, 04:47:10 PM »
Hi Brian

Wanted to ask when international shipping would start again?
Thanks mate,


General Questions / Collosalus Flanger 500k Reverse Log
« on: April 21, 2020, 02:27:34 AM »
Hi All,

Need some advice on the Madbean Collosalus Flanger, i am finding it difficult to source a 9mm 500K reverse log Pot for the Sweep, and was wondering if a 9mm 500K linear pot could be used as a substitute.

Alternatively i was thinking of getting a 16mm C500K as an alternative with a small compromise on the aesthetics of the build :)

Appreciate any advice and guidance on this, thanks


General Questions / Greenbean - question on Volume
« on: April 13, 2020, 03:17:57 AM »
Hi All,

I just completed a greenbean 2019 build and was testing it, and it seems to working and getting an overdrive sound. However the volume seems to be on the low side, itís not much louder even setting volume pot at max, the controls work and drive pot does overdrive the signal, clipping also changes the sound. Iíve measured all the voltages and everything checks out. Was hoping to get some advice if anyone has faced a similar situation.

Many thanks


General Questions / Rump Roast Query
« on: March 26, 2020, 03:33:32 AM »
Hi All
Iíve just completed a Rump Roast Build (bought in around 2010  but forgot/misplaced it and then it appeared again a month ago in a toolbox!). I do get an output, a misted boost and tone control works, Iíve built it as a hybrid, switchable between a boost and overdrive. I am not getting a significant boost, itís On a similar level as the clean signal. Also when I bias to 4.5 V I get no sound, Iíve played with both trimmers and when I set Q1:1.3V and Q2:1.5V I then get an output. Any help and guidance would be greatly
appreciated, thank you -

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