LFO-10 4HP lfo by FEEDBACK

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strat-1
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LFO-10 4HP lfo by FEEDBACK

Post by strat-1 »

www.feedbackmodules.com

[UPDATE] I corrected missing diodes in the manual.

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MAIN PCB Top and Bottom
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POWER PCB Top and Bottom
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This is the easy to use but versatile LFO your modular synth will love :) :) :)
It is a great compromise between simplicity, user friendliness and enough features to make it special.

This little module is an evolution of the LFO of the famous MS monophonic synth from the seventies, adapted to eurorack format.
The original MS LFO had a FREQUENCY knob, a WAVEFORM knob and separate outs for PULSE and TRIANGLE waveforms.
We added some features to make it even better. We extended the FREQUENCY range with a switch, making it work now from 18mHz to 24Hz. Both outputs now are buffered so they have enough current to drive more destinations at the same time (without loading and distorting the waveforms). Both outputs now have their own LEDs, red for PULSE wave and bicolour red/green for TRIANGLE wave.
The main feature of this LFO is the WAVEFORM knob that will change progressively the shape of the waveforms:
- at the TRIANGLE output from SAW (CCW) to TRIANGLE (centre position) to RAMP (CW)
- at the PULSE output from 5% (CCW) to 50% SQUARE WAVE (centre position) to 95% (CW).

LFO-10 is available in two type of kits :

KIT1 :
- 2 x PCBs + Front Panel + 3 x Light Stoppers for LEDs
(The light stoppers will stop the LED light not to bleed to the next module in row)

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KIT2 :
- 2 x PCBs + 3 x Light Stoppers + Front Panel
- 2 x Bicolor LEDs superbright
- 1 x 10KB Pot
- 1 x 100KB Pot
- 2 x Minijack sockets
- 1 x 6way Pinheader Male for 10/12mm spacer
- 1 x 6way Pinheader Female for 10/12mm spacer
- 2 x 1900h Cream Knobs

The rest of the parts like resistors, caps, diodes, are easy to be found on every common store.


Attachments
LFO-10 Build Files 1.0.zip
(27.98 MiB) Downloaded 31 times
LFO-10 - User Manual.pdf
(748.62 KiB) Downloaded 31 times
LFO-10 - POWER pcb.jpg
LFO-10 - POWER pcb.jpg (85.42 KiB) Viewed 1253 times
LFO-10 - Module.jpg
LFO-10 - Module.jpg (112.05 KiB) Viewed 1253 times
LFO-10 - MAIN pcb.jpg
LFO-10 - MAIN pcb.jpg (131.88 KiB) Viewed 1253 times
LFO-10 - Light Stoppers.jpg
LFO-10 - Light Stoppers.jpg (50.99 KiB) Viewed 1253 times
LFO-10 - Detail.jpg
LFO-10 Build Photos 1.0.zip
(7.67 MiB) Downloaded 27 times
Last edited by strat-1 on Thu Jun 02, 2022 6:04 am, edited 6 times in total.
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strat-1
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Re: LFO-10 4HP lfo by FEEDBACK [NEW SMD project!]

Post by strat-1 »

I made some videos demonstrating the features of LFO-10 module.



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strat-1
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Re: LFO-10 4HP lfo by FEEDBACK [NEW SMD project!]

Post by strat-1 »

I made a pdf manual explaining the functions of LFO-10 adsr.

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alain6870
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Re: LFO-10 4HP lfo by FEEDBACK [NEW SMD project!]

Post by alain6870 »

Hello,
Your document looks very nice.
I have noticed that pot and switch are inverted on top.
Switch "low" goes with pots "high"
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strat-1
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Re: LFO-10 4HP lfo by FEEDBACK [DISCOUNT!]

Post by strat-1 »

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🧨 Take advantage of our biggest DISCOUNT to date. 30% off on ALL modules and kits.

You know that awesome 106 Chorus or 1Bit Delay you’ve heen wanting to get? Now’s your chance to buy it at an even more affordable price.

⚡️ The offer is available for a limited number of items, only this week, 5-11.04.2021

Visit www.feedbackmodules.com for a complete list of products.
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strat-1
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Re: LFO-10 4HP lfo by FEEDBACK [UPDATE]

Post by strat-1 »

[UPDATE] I corrected missing diodes in the manual.
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JP8
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Re: LFO-10 4HP lfo by FEEDBACK [UPDATE]

Post by JP8 »

I've built two of these to spec according the build manual. Unfortunately they both do not work. The Triangle LED lits up red, but there's no output. I got the PCBs with the bridge mod on it. What am I missing here?
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strat-1
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Re: LFO-10 4HP lfo by FEEDBACK [UPDATE]

Post by strat-1 »

New video for ENV-310/ENV-100/LFO10 by COLOR MY SOUND :)

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Re: LFO-10 4HP lfo by FEEDBACK [PROMO]

Post by strat-1 »

We have a 24h PROMO for LFO-10 Module. Check the website :)
www.feedbackmodules.com
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bassg
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Re: LFO-10 4HP lfo by FEEDBACK

Post by bassg »

nice! I guess I should finally pull the trigger and get the ENV100 then... :-)
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Re: LFO-10 4HP lfo by FEEDBACK

Post by Kosmikos »

And… too late they’re all gone! :waah:
Kosmikos’ tracks on Soundcloud: https://soundcloud.com/user-254876270
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