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tebl / A7800-Mega-Adapter

Adapter for using a wired Sega Mega Drive/Genesis controller on an Atari 7800.
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Can I substitute the 620 ohm resistors with 680 ohm ones instead? #1

Open RetroInVitro opened 1 year ago

RetroInVitro commented 1 year ago

or would using a lower resistance value one like a 510 ohm be better (or less worse) than 680 ohm one?

thanks.

RetroInVitro commented 1 year ago

Rephrasing:

the PCB calls for a 620 ohm resistor for R1 and R3. If I don't have a 620 ohm resistor, is it better to use 510 or 680 ohm ones as substitutes?

i.e. is it better to have 60 ohms more resistance or 90 ohms less?

tebl commented 1 year ago

I have not done the math on it, but it is a digital signal so I don't think ot would matter much - parts from that era would have had as much variance anyway. I would just try the slightly higher value.

tir. 21. feb. 2023, 04:19 skrev Retrogaming @.***>:

Rephrasing:

the PCB calls for a 620 ohm resistor for R1 and R3. If I don't have a 620 ohm resistor, is it better to use 510 or 680 ohm ones as substitutes?

i.e. is it better to have 60 ohms more resistance or 90 ohms less?

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