News:

Forum may be experiencing issues.

Main Menu
Menu

Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Show posts Menu

Topics - Kylianvb

#1
General Questions / Lowrider 2015 question
December 28, 2019, 07:30:22 AM
I built the lowrider a while ago, and I have to say it sounds wonderful and has been on my board ever since. I finally got around to shooting a video-demo for it, but in figuring out how to demo this pedal, I realized that I had no clue what side of the A/B switch actually applies the active filter to the octave-up signal. I definitely hear a difference between the 2 settings, but both sides sound usable and the documentation doesn't specify. I tried to analyze the schematics to figure it out, but my circuit-knowledge ain't quite up to snuff yet, so I figured I'd come ask here rather than end up guessing!

Thanks!
#2
Channel Link!

Hey folks! Just started up my youtube-channel, hopefully bringing y'all some decent-quality DIY pedal demos. I have a little over 20 builds I'd like to do videos on (mostly Madbean stuff!), but I figured I should ask people how I'm doing so far before trudging ahead. I could really use some feedback on the soundquality/format/whatever you might find important in a gear-demo, so I can perhaps improve future videos.

Madbean 8ball (discontinued!)
[youtube width=640]http://www.youtube.com/watch?v=QztrvuoBlCU[/youtube]

Madbean Pork Barrel (old version!)
[youtube width=640]http://www.youtube.com/watch?v=80hPyQzuOGM[/youtube]

Madbean Fat Pants Jr. (Just a darn challenge to really demo effectively  ???)
[youtube width=640]http://www.youtube.com/watch?v=n1L044dxAJQ[/youtube]

Also, just something that applies to this forum; Should I keep making seperate threads for seperate builds in the future, or maybe just collect them in 1? With the lack of activity on this specific subforum as of late, I don't really want to be THAT guy eventually filling up the entire first page.
#3
Tech Help - Projects Page / Farty Hipster Fuzz
December 09, 2017, 01:58:02 PM
Hey y'all! I haven't been at this pedal-building game for too long, but have already achieved some wonderful sounds through piggybacking off of Madbean's engineering prowess. (Tonebender already done & the Afterlife Compressor ready to box up, gorgeous stuff) ... This time, however, I'm getting a farty, gated sound out of the Hipster Fuzz, and the bias isn't even getting close to what it's supposed to be. To get a proper note out of the fuzz you have to hit the string rather hard, after which the sound dies down very quickly. I've been reflowin', measurin', readin' and audio-probin' for days now, and am ready to give myself over to the expertise of people who actually know what they're doing, which is where you hopefully come in!

I used 2 2n3904 transistors, a 20k trimpot instead of a 25k one, and when this 'farty' issue persisted I eventually swapped out R4 for a 1K resistor, as the manual suggested for 'more output'... Which obviously wasn't exactly my problem, but in my desperation I figured it was worth a shot; Either way, it didn't have any positive or adverse effects to the tone from what I could tell.

The bypass is absolutely clear, and using the audio-probe I can follow the signal around the board. Drastic tone-changes obviously occur around the transistors, but I don't have the ear yet to really hear where it goes wrong.

Aaand the measurements;
9v+ = 8.52
GR = 0
Q1 = 0, 0.56, 1.26 (E,B,C)
Q2 = 0.6, 1.26, 0.62 (E,B,C)
TP= 0.62
Hopefully I got those last ones right, as far as the pinout goes... To be completely certain y'all know what I'm measuring; Looking at the PCB in the PDF, I measured from down to up. (pins 1, 2, 3 consecutively if I'm reading the datasheet right)

I'm hoping this + the attached pictures cover all the info needed and would like to thank you guys already for checking this out :).