open-amiga-sampler
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echolevel
Open source schematics, parts lists and documentation for building generic mono Amiga sampler cartridges
Hi, I am sorry to disturb this here :) I am looking for a specific schematic of a Ferranti ZN427 audio Digitizer I build for my Amiga 25 years ago...
Which pontentiometer/trimmer you are using in smd-fork case?
Hi! I wanted to make one of these for myself but have to buy several PCBs. I was wondering if it would be okay to sell the remainder, maybe with...
Using the unused U2b we may implement this 18dB/octave adjustable anti-aliasing filter: https://www.dropbox.com/s/3snxq4brou7bscp/OAS%203rd%20order%20adjustable%20AA%20filter.jpeg?dl=0 This has been tested in circuit and produced audibly better results than the simple filter especially for...
The current circuit produces good results. However, it does not follow standard design practises. Although the gain of the current design is stated to be 1 -> 10x, it is...
Rather than a straight connection between U2a (the op-amp) and the U1 (the ADC), a simple anti-aliasing filter of 100R and 100nF can be fitted. Despite the simplicity of the...
This will reduce power consumption and improve the slew rate and noise performance of U2a. Connect pin 6 to pin 7 of U2b. Connect pin 3 of U2a to pin...
The output of C1 is notionally at 2.5v, and the input is at 0v, therefore polarity of C1 needs to be switched to have the positive terminal connected to the...
The circuit as I built it had a noticeable DC offset. This can be addressed by substituting the 1K resistors R5 and R6 for 100K in the same positions. This...
Hi. Im trying to build my fisrt own sampler but i need more info about used parts as: 1x 330ohm resistor - how many watts? 5,10,50,100 W 5x 1kohm resistors...
