HIC-1 board redesign and improvement

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By sdsnatcher73

Prophet (2234)

sdsnatcher73's picture

04-10-2021, 10:58

I understand it does not amplify anything but it it mixes the PSG, PPI and 2 slots into MIXO and it does look like it also includes a low pass filter (but I am not entirely sure).

By Alexey

Guardian (3204)

Alexey's picture

04-10-2021, 11:28

I am not a specialist in audio circuits, so I made a clone of the original circuit. If anyone has ideas on how to improve the audio, I could make a few experiments.

By Alexey

Guardian (3204)

Alexey's picture

04-10-2021, 17:28

Some 3D for a change, after adding a few finishing touches...

By sdsnatcher73

Prophet (2234)

sdsnatcher73's picture

04-10-2021, 17:54

Cool looks really nice!

By erpirao

Paragon (1217)

erpirao's picture

04-10-2021, 23:38

How much would each plate cost once assembled?
just to put it on the MSX

By Alexey

Guardian (3204)

Alexey's picture

05-10-2021, 02:38

I don't have plans to assemble and sell these boards. I will make a few for myself in order to repair my own computers or computers of my friends. Maybe I will sell a few DIY kits to cover my expenses, but this is not decided yet.

By Stt1

Hero (574)

Stt1's picture

05-10-2021, 11:52

I am interested in for two diy kits, if this project is succesful.

By Alexey

Guardian (3204)

Alexey's picture

14-10-2021, 12:49

@Stt1: noted

The boards have arrived. The parts are on the way. The total cost of the project for me so far is around 69$.

By Repair-Bas

Paragon (1125)

Repair-Bas's picture

14-10-2021, 12:53

Great job alexey Cool Cool

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