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Marcel Alkema
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Diode trick/signal feed
This PCB will provide a Diode trick circuit in combination with a signal feed. It was the last missing for a model train control. To combine the use, it will save space in the control cabinet. Very us...
Potentiometer in OPAMPS
In testing several OPAMPS to use as guitar effects, a sum of potentiometers are available to adjust settings.
LM386_adjust
Circuit to use a LM386 in a stable way, instead of using it on the breadboard. Used all possible option to experiment to the maximum.
Supply of choice with the PIC12F675
This project alaws different fixed supply voltage, by control of the PIC12F675
Genewave
In order to keep my signal experience up, I created this wave generator which can creates several vorms. Looks fine and I am sure it will work.
Experimental_CMOS
This PCB is a part of the testing projects of which I collect. Delivery is perfect as it looks fine and ready to solder. Based om early delivery's I am sure it will do fine.
Diode tric
Several inputs to make feedback signals work in combination with active mass to garantee power on digital decoders of a modeltrain.
Tremolo effect
This circuit is created, to achieve a tremolo effect for the guitar.
Calibrate/feedback module.
This circuit seperates by using a PIC and control relais. It devides rails to use as a configuration part.
Positve and negative
This PCB is prepaired for types of transformer which combined with the circuit, creates a positive and negative voltage.
Voedingskeus_12F675
I was looking forward to this PCB. It is the hart of my supply with, several options. 0..30V/0..3A and fixed supply choice with a button and a configuration for a +15/-15V to test OPAMPs. Great and lo...
Mixer
As I made my way in the audio and mixers electronic, this is a first PCB to create mixure sounds. Looks very good and it came out as I whished.
PWM adjuster
Gift from PCBWay
Negative voltage
PCB with a circuit to generate a negative voltage with a mass line. For max 30 mA output.
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