Anything Kingsley

[BeeSharp]

Simon's pedals are killer and so pricey. I think most of them (maybe all) have a preamp tube, so maybe enclosures are more an issue. Anyway, having a clone of one would be AMAZING!

http://kingsleyamplifiers.com/products/pedals/20/

 

[megatrav]

I have the schematic for a Harlot V2. A friend of mine traced it so that he could build a clone.
He changed the caps from the original 630V polyester caps and the 1/2W resistors that Simon uses for everything. He also didn't include the power supply for me, but he said its pretty similar to any other NE555 based high voltage supply.

 

[megatrav]

From what I understand, this is pretty much the same as the Page as well, except it doesn't include the Jfet. I believe the Minstrel is also similar but has treble, middle, and bass controls.

 

[megatrav]

@PedalPCB You think you could make this one? I think it might be a little difficult to work out the power supply, but I can try to get a schematic for it as well.

 

[Robert]

I'm going to get some power supply prototype PCBs in the next restock.

 

[megatrav]

I'm going to get some power supply prototype PCBs in the next restock.

Awesome can't wait!
If its any help, I have found this power supply

 

[vigilante398]

Sorry I just saw this, I'm the one that traced it. The high voltage power supply is a typical "nixie" supply using NE555 to switch an IRF740 with a 100uH inductor. The raw HV coming off the power supply is 237V (my plan was to lower it to 200V and run a submini tube). I can't remember the exact part number, but he uses an LDO for the tube filament.

 

[Robert]

Cool, yep I've done nixie supplies before. That's what I used in my "Bigger Muff" clones.

The Friedman Motor City Drive uses a similar circuit, but if I recall correctly it doesn't have the feedback to control the voltage, it just runs wide open all the time.

 

[megatrav]

Sorry I just saw this, I'm the one that traced it. The high voltage power supply is a typical "nixie" supply using NE555 to switch an IRF740 with a 100uH inductor. The raw HV coming off the power supply is 237V (my plan was to lower it to 200V and run a submini tube). I can't remember the exact part number, but he uses an LDO for the tube filament.

I hope one day I can understand what all that means lol
I also hope its okay that I shared here. I wanted to give back to the community and hopefully spark a new project.

 

[megatrav]

I posted the schematic on the freestompbox forum- someone said they tried to build using this schematic and stated the voltages for R5, c11, c12, and R12 were not correct.
I am not sure how to trace the circuit, so I can't comment. I just wanted to post incase there are issues when trying to build.

 

[Robert]

Do you have the pedal where you could take some pics of the PCB?

 

[megatrav]

Yeah I am going to take some guy shots tonight and post them here.

 

[megatrav]

Here are some that I found online and took previously. They aren’t all the best quality so I can try to take more if need be.

 

[BeeSharp]

Dude, awesome!

 

[megatrav]

..

 

[jubal81]

Mounting a hot tube up against those components isn't the brightest idea.

 

[Robert]

Well.... the components the guy said were incorrect (over on FSB) sure as heck look correct to me.

 

[megatrav]

Well.... the components the guy said were incorrect (over on FSB) sure as heck look correct to me.

That is good to know. I will post some pictures over there as well (its more difficult on their site).
I mainly posted there because they had a schematic for a Kingsley Page and quite a few people were tracing out some different effects.

 

[megatrav]

Mounting a hot tube up against those components isn't the brightest idea.

I can't speak from a design perspective, but from a player's perspective it hasn't ever had any issues. TGP is full of folks using his pedals and they haven't had any issues that I have read about.

 

[megatrav]

Someone else on FSB re-did the schematic and posted it. Not sure if its right, just sharing informaiton.