Something New from Doc Sketchy

[Dr. Sketch-n-Etch]

it's just the PCB I'm selling

Cost of an FSLite PCB?

SORRY, MY CAPS LOCK IS STUCK ON (A COMMON MACBOOK PROBLEM, EVIDENTLY)

BARE PCB: $40
STUFFED AND TESTED PCB: $200

NOTE: THERE ARE A LOT OF VERY SPECIFIC RESISTOR VALUES IN THIS BUILD (LIKE, 56 DIFFERENT SPECIFIC VALUES) THAT ARE A REAL PAIN TO ORDER. ALSO, I HAVE HAND-SORTED ALL OF THE CAPACITORS INTO 0.1% BINS FOR THE UTMOST ACCURACY FOR THE TWO DOME FILTERS. HENCE, THE EXTRA $160 FOR STUFFING AND TESTING THIS BOARD IS A REAL BARGAIN. NOTE THAT THIS IS BASED ON MY NORMAL HANDBUILT PRICING SCHEME OF CHARGING DOUBLE THE PRICE OF THE PARTS PLUS THE COST OF THE PCB. THIS BUILD TAKES SEVERAL HOURS, SO IT'S A BARGAIN.

JUST SO YOU KNOW, I WILL NOT BE SELLING KITS. IF YOU WANT THE RESISTORS, YOU HAVE TO ORDER THE STUFFED AND TESTED BOARD.

AS I SAID BEFORE, I'M GOING TO DEVELOP A VERSION OF THIS BOARD WHICH IS A STACK OF THREE BOARDS 2" WIDE, SO IF YOU WANT THAT INSTEAD, PLEASE SPECIFY. ALSO, IF YOU WANT ONE OF THESE, PLEASE SEND ME A PM. DON'T CLOG UP THIS THREAD WITH REQUESTS -- THANKS.

[Dr. Sketch-n-Etch]

New video!!!!!!!!!!!!!!!!!!!

[Moog$FooL$]

gonna watch that one later..... just wanna thank u for it ahead of time though.

[Leverkusen]

Great sounds - I might have to get my guitar back from the attic.

[Th°ne]

Hi Doc.

Thanks for the vidéo !
This is crazy. And the sound is so good !
Cheers !

[KSS]

Thank you.

[McIntosh]

This sounds brilliant, endless modulation and great tones!
Did you ever hear back about a possible 3U version?
Or maybe just build as a stand-alone effect.
Love your enthusiasm!

[maltemark]

Tremololy is my new favourite word in English

[maltemark]

[Double post]

[Moog$FooL$]

This sounds brilliant, endless modulation and great tones!
Did you ever hear back about a possible 3U version?
Or maybe just build as a stand-alone effect.
Love your enthusiasm!

any time i ask about a stand-alone version...... i get a blank stare.

[Thorsday]

This sounds brilliant, endless modulation and great tones!
Did you ever hear back about a possible 3U version?
Or maybe just build as a stand-alone effect.
Love your enthusiasm!

any time i ask about a stand-alone version...... i get a blank stare.

Buy a built and tested PCB, no panel, like I did. Adhere to the power requirements and port it over to a desktop or pedal format. Whatever you want.

[Moog$FooL$]

that sounds like a good solution Mr. Thorsday.
how's your working out?? any pics? maybe a video?

[Thorsday]

that sounds like a good solution Mr. Thorsday.
how's your working out?? any pics? maybe a video?

It's great... A delightful effect module. There is a photo I uploaded somewhere on this forum... Search function should reveal it.

Edit: viewtopic.php?f=24&t=234539&hilit=frequ ... r&start=25

It's Synthesizers.Com format... I used Doc Sketchy's exact panel design... But I made it a Black panel, etched.

[Moog$FooL$]

thanks!!

[Huba-Swift]

This looks (and sounds) super neat! I've been fascinated by frequency shifters since putting together Jurgen Haible's FS-1A module a while back. Yours does seem a good bit simpler, though I imagine that's probably mainly due to it using an external oscillator. The feature you mentioned about feeding in your own signals where the sin and cos would normally go is a neat idea. If I had thought about that beforehand I may have designed that feature into my front panel. I've found feedback to be a lot of fun to play with on these and have been able to get surprisingly realistic bird chirp and water droplet sounds by doing so.

Do you have a page anywhere where you have your modules listed along with schematics and board layouts? Or do you send schematics and instructions along with the pcbs when you ship them out?

[Dr. Sketch-n-Etch]

This looks (and sounds) super neat! I've been fascinated by frequency shifters since putting together Jurgen Haible's FS-1A module a while back. Yours does seem a good bit simpler, though I imagine that's probably mainly due to it using an external oscillator. The feature you mentioned about feeding in your own signals where the sin and cos would normally go is a neat idea. If I had thought about that beforehand I may have designed that feature into my front panel. I've found feedback to be a lot of fun to play with on these and have been able to get surprisingly realistic bird chirp and water droplet sounds by doing so.

Do you have a page anywhere where you have your modules listed along with schematics and board layouts? Or do you send schematics and instructions along with the pcbs when you ship them out?

I built my first few frequency shifters with an on-board through-zero FM VCO (a dual Rubicon core set up in permanent quadrature), but I've now learned that this new simpler FS is just as good, far simpler, and more versatile.

I don't have a page where I document everything, but I do send all the necessary docs and info when I sell a board.

[BlinkyLights]

Are those Eurorack Scan modules for sale?

Freak Shift looks super cool.

[Dr. Sketch-n-Etch]

Are those Eurorack Scan modules for sale?

Freak Shift looks super cool.

Yes, I can build you a Eurorack Scan just like the one in the picture (I even have a spare panel all made). However, you do realize that this module only generates the control trapezoids, and that to actually scan channels you need a quad linear VCA (like the Intellijel Quad VCA, or two Intellijel uVCAs)?

PM me and we'll work something out.

[Dcramer]

jazzing out on us Doc!
That freq sounds great and because my Euro case has no back or shelving, I can easily squeeze one in if you can do me a Euro version?
Doesn’t matter how many HP it is and the board can just go straight back like on your MU version.
The only important thing is that the board be on stand-offs (about 3inches) from the panel so that the circuit board isn’t hung up on the rails.
Don’t worry about me fitting it in my case, I have a special technique

What ya think? Is it doable?

[devinw1]

Just love that tweaked out ring-moddy sound. Reminds me of some Mahavishnu Orchestra!

[Dr. Sketch-n-Etch]

jazzing out on us Doc!
That freq sounds great and because my Euro case has no back or shelving, I can easily squeeze one in if you can do me a Euro version?
Doesn’t matter how many HP it is and the board can just go straight back like on your MU version.
The only important thing is that the board be on stand-offs (about 3inches) from the panel so that the circuit board isn’t hung up on the rails.
Don’t worry about me fitting it in my case, I have a special technique

What ya think? Is it doable?

Sure, but give me a week or so to sort out all of my other orders (plus I ran out of some parts so I'm waiting on a Digikey order before I can finish a couple of orders).

The 3-PCB stack is nice, and only a couple of inches deep, but it's also a couple of inches thick. The single PCB is much deeper but is only one board so not very thick. The only thing is that I can only connect wires to the single PCB with vertical pin headers, whereas I can use sideways (90-degree angle) pin headers on the board stack, so the connections do not add to the thickness of the stack. The vertical connections render the single PCB almost as thick as the stack. Plus, it's just a lot nicer for me to work with the smaller boards.

The Euro panel for this module only needs to be 4HP to accommodate all the stuff, but it should probably be 8 or even 10HP to accommodate the width of the board stack. I'll work up a couple of designs and you can tell me what you think. There is probably no virtue in making it too small, because it's harder to wiggle.

[Dr. Sketch-n-Etch]

Just love that tweaked out ring-moddy sound. Reminds me of some Mahavishnu Orchestra!

Any day that I remind someone of Mahavishnu Orchestra is a good day indeed! Speaking of ring-moddy goodness:

[devinw1]

Just love that tweaked out ring-moddy sound. Reminds me of some Mahavishnu Orchestra!

Any day that I remind someone of Mahavishnu Orchestra is a good day indeed! Speaking of ring-moddy goodness:

That is literally the exact song I was thinking of haha! GOOD STUFF man. The amazing Narada Micheal Walden just CRUSHING on drums on that one too and I think he was like 17 at the time. Just nuts.

[Dr. Sketch-n-Etch]

it's just the PCB I'm selling

Cost of an FSLite PCB?

Single bare PCB (5.1" x 5.6") -- $40 US
Triple bare PCBs (each 2.1" x 5.6") -- $50 US
Built and tested PCB (either single or triple stacked) -- $200 US

Just beware: There are a lot of different capacitor and resistor values for the Dome filters, and hand-matched resistors in the multiplier circuits. I do all that for you if I build it. If you build it, you have to order a ton of different parts (like about 56 different, very specific 1% resistor values in the Dome filters, plus about 6 or 7 other values, and 30 hand-matched film capacitors in four different values).

I could probably be persuaded to sell the Dome filter kits, but I'd probably charge $60 for them, just because it takes me so long to hand-sort everything. Then you'd be in it for $100 or $110, and for another $90 or $100 I could just build it for you. It's probably worth it.

[McIntosh]

I have 75mm to the back of my diy 3U case, how deep is the triple stack in total? 10Hp or even 14 Hp is cool with me, i like to have room to wiggle, defiantly an effect you want to wiggle! your prices are very resonable considering the price of what other Frequency shifters go for, never thought i ever get my hands on one.