Simply an Angry Andy

[andrewsrea]

Build Rating

5.00 star(s)

Just finished an Angry Andy for a friend. Never heard the original and was impressed with the sound of this. The boost sounds like a bit of a treble boost in the sweet spot and IMHO, needs a little more dB. However, my friend wanted it built to original specs.

 

[MichaelW]

I thought the original spec was red diffused LED clippers?
I just built a pedal using water clear 5mm whites and they measured pretty high vF. Like 2.75v

 

[andrewsrea]

I thought the original spec was red diffused LED clippers?
I just built a pedal using water clear 5mm whites and they measured pretty high vF. Like 2.75v

The LED on the face of the pedal are just channel off/on indicator light (red for drive and blue for boost).

Yes, the '50w' clipping option on the toggle is supposed to be a red LED by design. I used a red + green pair (internal) for a little asymmetry. The LEDS I have to choose from each measure identical electrically between the diffused and clear versions and I used clear. Diffused makes better indicators IMHO, so I save them for that.

 

[MichaelW]

Do you have any issues with oscillation when the boost is engaged? Meaning If you have the gain above noon, and the boost also around noon or above does it squeal like a banshee? I built 2 of these in a row and have had the same issue with oscillation at certain settings.

 

[andrewsrea]

I did not have any oscillations. As I originally posted, I found the boost to be only slightly stronger than unity gain and it cuts some low end frequencies.

Risk of oscillations is why I use a Cliff jack on the input (limits the chassis to having a single source to ground, the output jack) and I run the wires from the jack as far from the circuits as I can.

I had a problem like you describe with a Lead Solder PCB build, where the original gain circuit was too much and would begin to ring (howl) with the mids all the way up.

 

[HamishR]

The boost looks like a TS with preset gain and tone.