drgonzo1969
Well-known member
ya there is so much attention to detail on that thing. its insane
Lab Rat build!
- Thread starter drgonzo1969
- Start date
drgonzo1969
Well-known member
CHeck out the wiring on this one
Betty Wont
Well-known member
Super extraneous. What’s the point of wasting all that wire and time?!?! I just don’t get the goofy art wiring.
Feral Feline
Well-known member
To each their own.
It's beautiful, I get it...
...but I'd never do it.
(I'd never be ABLE to do it, too much frustration would ensue when it was NOT perfect).
It's beautiful, I get it...
...but I'd never do it.
(I'd never be ABLE to do it, too much frustration would ensue when it was NOT perfect).
drgonzo1969
Well-known member
agreed. it looks great but i dont have time or patience for that. the front of the pedal that guy built was made to look like the dashboard of a classic car with keystart ignition on it. so that wiring kind of makes sense in context of the overall build going for classic car aesthetics.
Feral Feline
Well-known member
You should see the wiring in my classic car (and a bunch of friends)... mind, all our dashes do look great!
Please post the dash of this pedal.
fig
Village Idiot
Everyone has the same amount of time....THIS moment. (wow, I should write that down...oh wait)
vigilante398
Authorized Vendor
I appreciate the artistry that goes into organized wiring like that, but I very much prefer spending extra time in the PCB design phase to make designs easily manufacturable so you can get a moderately clean build without spending a ton of time on it.
Spend the extra time once so you don't have to spend extra time every time you build one.
Spend the extra time once so you don't have to spend extra time every time you build one.
Feral Feline
Well-known member
Thanks, but I couldn't get the link to work. Comes up as a 502 error.
drgonzo1969
Well-known member
I cant get the file to upload or link to work. i suck at computers. its on this page here about halfway down.
Show Posts - Leevibe
Feral Feline
Well-known member
Thanks Doc, I did try the Madbean forum before but then as now I am getting a bunch of the stereo shots, but scrolling further down I get:
"Sorry This image is currently unavailable"
Oh well.
"Sorry This image is currently unavailable"
Oh well.
drgonzo1969
Well-known member
drgonzo1969
Well-known member
I have the Lab Rat board assembled but not working. I am slowly troubleshooting it. The board appears to power up for about 6 seconds but passes no audio, and the the LED by the tube socket starts flashing about once a second. Parts look correct and properly oriented. I will post some pics in a day or so if I don't get this sorted out.
Betty Wont
Well-known member
Flashing led makes me think diode issue. Perhaps one of the circuit diodes is reversed or they are swapped in location.
vigilante398
Authorized Vendor
LED flashing once a second usually means your power supply (whatever the pedal is plugged into) is not happy. The most common cause is that the power supply can't deliver enough current for the tube to warm up properly.
What kind of power supply are you using?
It is a 9v supply I use when testing builds. It powers all of my other sushibox pedals without issue. I was curious though and checked with a different power supply and had the same result.
Another thing to note is that the mosfet gets hot when the led starts flashing. The two diodes are placed and oriented correctly, but I am thinking that the 4007 may be bad. Have not checked it yet but plan to.
Another thing to note is that the mosfet gets hot when the led starts flashing. The two diodes are placed and oriented correctly, but I am thinking that the 4007 may be bad. Have not checked it yet but plan to.
vigilante398
Authorized Vendor
If you know the power supply is good on other pedals but isn't working on this one, that means there is a problem somewhere on the board. A common one is forgetting to install the NE555 (guess how many times I've done that) that will cause the MOSFET to heat up and will basically behave as a short on the power supply. So if you haven't installed the NE555 do that and try it, if it is installed make sure it's all the way in seating correctly and that it's facing the right way.
Aside from that certainly look at other components to see if anything looks off, and definitely check for solder bridges, an unintentional short anywhere in the power supply can certainly cause that behavior.
