/vr/ - Retro Games

Anonymous Fri Feb 27 16:12:50 2015 No.2260214 [View]
File: 848 KB, 2048x1536, DSC01522.jpg [View same] [iqdb] [saucenao] [google]

>>2260193
I observed that my SID warms up to around 40°C while the rest stays about 30°C.
So, i went full /g/ and added a tiny ass fan next to the SID. It's very quiet because it runs of 5V.
The only thing i don't like is that i have to use a pullup resistance of 193ohms to get the luma signal right (470ohms and 330ohms in parallel), the preliminary datasheet mentions 390ohms and what's often used is 470ohms.
I have a not so great feeling about this.

The first dumb thing i did about the video amp was to use the unregulated 9V like the original modulator, this was beyond retarded as it has a strong 100hz ripple. So i added 4700µF parallel to the original 2200µF one because... i don't know.

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/vr/ - Retro Games

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