Messages

OD855 is fine too now! 

I'm assuming the 855 is a green prototype as well. The first lug of the Volume pot (the far right pad, looking at the PCB from the top) was mistakenly connected to VR instead of ground in the PCB layout. To fix it, you'll need to disconnect that lug from the pad and then run a wire to the nearest ground point (probably C12 or C13). If it's a PCB mount pot, you'll want to clip the lug and solder a wire to it. (Unfortunately you can't just cut the trace since the VR signal passes through that pad and continues on.)

Apologies for the inconvenience - I tried to emphasize these errors when I was selling the prototype boards, but it's been a good six months so most of that info is gone now. I had to dig for awhile myself to remember what the issues were!

The good news is, both of your issues are exact symptoms of the layout errors in those two PCBs, so they'll work just fine once you get the pots switched around.

Yes, also a green board.  (OD820 is working now)

Thanks, I thought I was doing stuff wrong all of a sudden.

You're right, I had these here for a good 6 months, but never got the corrections from you. But now all's good.

Cheers from Amsterdam!

This is one of the prototypes (green PCB), so there was a kink in the circuit. The pads are reversed on the dual pot's bottom set of lugs (the "balance" half). As you turn up the gain, it actually blends away from the drive part of the circuit instead of blending into it, which is a bit of a problem.

To fix it, you just have to flip around the wires so that lug 1 goes to pad 3 and lug 3 goes to pad 1. (only on the bottom row of the dual pot lugs - the top is fine)

OH!

Thanks, I am going to try it!

I also have a problem with the OD855 board: clippingdiodes in the section with trimmer work fine, but any kind of diodes in the other section don't work (volume drops very much)

WOW!

Nice PCB 

Got any left??

It sounds like a very lowgain pedal now.
My klons have way more gain.
Will a 500k pot work, since it also adjusts the cleanblend?

bump bump

Now with pics, sorry guys 

Anyway, the od820 seems to have less gain then the stock one, also less highs. I checked all the values and everything seems to be right.
Maybe I'll try a 500k pot for the drive/blend pot.
For the led I allways use the anti-plop formula , 390r plus 4,7k plus 47uf cap in the middle to ground (underneath the switchboard)

If there are any thoughts on the gain-issue please share.

Thanks!

Hi,
Just finished building an OD855 and OD820, but.....

The OD820 has very little gain

Any thoughts?

Thanks!

No one? 

Hi,
I want to try the basscontour-mod, but don't really understand how to connect it .
Are C1 and C6 on the pot the caps from the schematic or extra caps? If they are from the schematic how to use C1? Disconnect it from IC1C10.
I think I am not reading it right. Can someone draw it in the schematic?
Thank you!

Hi everyone,
Here's my 3rd Kingslayer! Now with splitted gain pot, sounds good when the clean is just a little bit less then the gain/dirt.
Cheers!

Thank you for the response and information.
I will bias again and play some more with it.
Cheers from Amsterdam!

Hi,
I have mine set by ear (the loudest), but when I measured the bias it is 3v instead of being between 12v and 14v. When set at 12v it's softer and 'dull'.
Any thoughts?
Thanks!

Thank you! 

It's a Collings 290 guitar.

Hi,
I 'needed' another Kingslayer since it's such a great pedal! (the best pedal I found that also works with the neck-pickup without making it muddy)
Here it is! (for me 422K for R11 sounds better)

Here is a clip. The solo starts around 1:58. I use the Kingslayer for medium gain and boost it with a regular centaur after it (apis board).

http://www.youtube.com/watch?v=HAtt6Erjt-Y

Thanks and cheers from Amsterdam,
  John

I know that what I'm going to say is completly off topic, but my gf and I are starting a travel through Europe tomorrow and I'm staying in Amsterdam the nights from 9 to 11.
Do you recomend some place to go to listen good jazz/blues music those days?

Check out:

Bimhuis
Melkweg
Paradiso
North Sea Jazz Club
Maloe Malo
Bourbon Street
Cafe Alto

You have to check google for their agenda. Have fun here!