all resistors : carbon film resistor
all film capacitors : MLCC
22uF output capacitor : Tantal
OP amp TI 2134

daeg wrote: ↑30 Jul 2020, 18:15

mutante wrote: ↑30 Jul 2020, 04:43 I have a question. Both R6 & R14 - are they carbon film resistors? I can't find any 1k resistors on PCB photo's.

IMG_1618-r6-r14.JPG

Thank you. BTW, looks like 10k. Isn't this orange color?

I have a question. Both R6 & R14 - are they carbon film resistors? I can't find any 1k resistors on PCB photo's.

modman wrote: ↑07 Jun 2020, 15:18 You are correct, this boards says V1.0.4 -- while the other one was V1.0
Is this your unit? If so would be great if you could make some photos in daylight?
This will make it easier to read to the color coding...

No, it's not mine. I just found from searching Google.

https://ameblo.jp/tgl-tokyo/image-12510 ... 46590.html
https://ameblo.jp/tgl-tokyo/image-12510 ... 46600.html
https://ameblo.jp/tgl-tokyo/image-12510 ... 46607.html

more pictures,, PCB layout is slightly different. It's a new version, IMO.

BB OPA2134 is correct op amp chip. Original Dumloid pedal using tantal capacitor for 22uF output coupling capacitor - it's a secret of Dumloid sound. I changed the capacitor to tantal and It works perfectly with OPA2134 chip. When 22uF capacitor is eletrolytic capacitor, OPA2134 chip is meaningless ...

jhergonz wrote:how about this one? I just leave the 120R resistor and the Zener diode ... I think the LED's anode should also be connected to positive rail.

http://pedalpcb.com/docs/Delegate.pdf

Let me talk about Pantheon's Voice toggle switch. It support 3 position - soft clipping, hard clipping and both. However this reversed schematic is soft, hard and no clipping. Something wrong.

No.5 Pin of 1044 - 10uF - 5mm LED - Release 50kB. LED connected to Release Pot and 10uF capacitor only. LED doesn't connected to 5089 TR or 10K resistors. These are from my PCB of PedalPCB. I've been waitin g for the Pedal pcb schematics, thanks you for this informatiion. is it suppose to be like t...

No.5 Pin of 1044 - 10uF - 5mm LED - Release 50kB. LED connected to Release Pot and 10uF capacitor only. LED doesn't connected to 5089 TR or 10K resistors.

These are from my PCB of PedalPCB.

I builted it up with PCB from PedalPCB.com few months ago. Of course, Sizzle was A100k. My first feeling was something wrong. Cuz it's too much treble. I did not know why.. Should I change A100k to A10k for Sizzle to fix it? Sure, you can try something with lower value, (50, 25 or 10k). Also, if yo...

I builted it up with PCB from PedalPCB.com few months ago. Of course, Sizzle was A100k. My first feeling was something wrong. Cuz it's too much treble. I did not know why.. Should I change A100k to A10k for Sizzle to fix it?