LTC1799 Precision Oscillator
The Precision Oscillator is made with the LTC 1799 chip to provide ultra stable clock frequencies from 1Khz to about 30Mhz. The LTC Module can be used to control the speed of all digital circuits, thus providing tweakability for many toys and devices otherwise unbendable. Only 3 wires to connect; +5 Volts for power, Ground, and the output wire directly to one side of the clock crystal on the device. These boards are individually tested. Printed Instructions included with each order. Hand-made in USA.
$15 USD – LTC 1799 Kit LTC Module, 250K Potentiometer, Kynar Wire, Knob, Switch, Trim Resistors, Diagram.
Price: $15
Instructions:
More Documentation:
SK-5 Installation Flickr for Sam C.
Tested and Found to work great on:
Casio: SK-1, SK-5, SK-100, VA-10, CTK-330, RZ-1, SA-10
Yamaha: SHS-10, VSS-30, QY-10, PSS-20
Nintendo: GameBoy Grey, Color
Zoom: 508 Digital Delay
Korg: Kaossilator, KP-Mini, ER-1, EA-1
MiJam Mini Toys
Does NOT WORK:
Yamaha RX-17 ( High Pitched Noise )
Example videos:
http://video.google.com/videoplay?docid=-4917905652491499395
[...] Please note that in the video I do install the crash proof resistor, but that is only necessary when using the regular LTC Modules. [...]
[...] well placed LTC1799 certainly seems able to spice up the stock sounds on this one. Check out the full how-to for more [...]
[...] got some time to circuit-bend a Bliptronic 5000. There’s a pitch bend control courtesy of the Getlofi Precision Oscillator kit, and another bend I found between some points on the IC that creates a nice harmonic drone. A [...]
hey is there a tutorial for installing one of these on a sk-1?
Installing this in an SK-1 is basically the same as Gameboy. Cutting if the trace is not necessary it turns out.
Interesting. Any chance someone has pinpointed the location of the SK-1 crystal and would share? I am not content with the sad little pitch bend on the SK-1.
[...] Circuit bent Yamaha mu5 multi-timbral synth with circuit bent MIDI interface by Spunkytoofers. MIDI circuitry by highlyliquid. Precision LTC1799 oscillators by getlofi. [...]
Hi.I want to say thanks you for your helping!!
And the LTC work with Super speak & spell(blue one) / Speak & Music / Alesis Hr-16 but not with midi / Casio Pt-87 / Vtech Smart desk
hr-16 should work over midi if you cut a trace before the clock input on a microprocessor.
[...] gotten several requests on how to hook up the Casio Sk-1 with a Getlofi1799 Oscillator so I’ve quickly drawn up a diagram for hookups. According to other sources the clock input [...]
A few things. Firstly, thanks for the great device! Next, the Alesis HR-16 video is down. Lastly, does anyone have a tutorial for installing the LTC1799 Precision Oscillator in the Alesis HR-16 (location of crystal, install instructions step by step, etc)?
Thanks in advance,
jacques
I did this with a Korg DDD-1 using one of your oscillators and crossbending two machines:
http://www.youtube.com/watch?v=y78DdwddOgw&feature=channel
Hi!
Would like to order 5 LTC 1799 Precision Clock Modules and wondering what it would cost to add the Potentiometer from the LTC 1799 Precision Clock Kit?
To clearify things, I would like to oder the following:
5 LTC 1799 Precision Clock Modules
5 250K Potentiometer
+ shipping to Sweden
Best regards
alex
Shipping to Sweden is $13 USD. You should probably just order 5 clock kits, those will include the Potentiometer, 250k if you like, and wire, knobs, and trim resistors. Best value!
[...] do this correctly you need the LTC Module or the GameBoy Kit ( now including the switch) from the Shop. The Switch must be high quality with smooth movement switch, otherwise any [...]
anyone put one of these oscillators on a casio mt-520?
the bends are tasty and numerous but pitch control evades me at present..
or a pcb closeup photo with where the crystal resides??
lemme know fellas
thanks for all the afforable fun
keep up the very goood work
hi,
it works great on speak and music Texas instrument (musique magique in french !),
just follow the getlofi explication and you have a great synth !
crytal rest in place, no problem !
so easy mod !
big thanks to getlofi
mathlesubber
Cool, anyway you could post some photos of where exactly the LTC was connected. I understand its pretty trivial, but a lot of readers will find that helpful.
where do i wire the power from a gbc to the LTC1799 Precision Oscillator?
if i get good results, i might sacrifice my few DMG’s for this =]
OK, for the musique magique
for the power connection, you have connect to ground battery and the positive is connected at the DCin of the chipset, i use 1,2v batteryX4
like that i have a constant voltage of 4,5v !
for the crystalclock, there is 3 pins, two in front, one back, in this sense connect to right pin
TURN THE POT AND IT WILL PITCH
have fun
mathlesubber
see my video on youtube
I just used the ltc 1799 to bend my casio sa-10. The pitch can now be controlled by a photo resistor! Check it out here:
http://www.youtube.com/watch?v=5vwnm0HMwaQ
The SA-10 Mod is dope thanks Malte. I like the photo resistor idea. Do you remember the value of it. Light/Dark resistance.
I don’t understand where the switch is connected on a gameboy. could anyone show me a photo of the wiring? or explain how the switch ties in?
Hey Z,
We have a how-to for adding a switch here: http://www.getlofi.com/?p=3085
It simply goes on the output of the LTC between the Crystal Input. To restore the original pitch we just disconnect the LTC output.
@ CM: Sorry, I don’t remember. I just bought four or five different photo resistors and tried out, which fitted best. I think, it also depends on the instrument you’re bending.
Thanks for the compliment