MN_Moody wrote on 2022-01-05, 03:12:
I think this depends on your sound card providing 5v power to the designated pin on the MIDI connector, which I'm not seeing as an option via a standard joystick port based on published pinouts.
See https://en.wikipedia.org/wiki/Game_port : You get to have +5V (usually unfused!) on pins 1, 8 and 9 (traditional pre-midi game ports also have +5V on pin 15).
The typical gameport-to-MIDI cable schematics on the internet (see e.g. ebay cable, help! DB15 Gameport > MIDI with joystick pass through) have a resistor between +5V at the game port and pin 4 of MIDI out. This is the safest design, because it has one resistor between +5V and pin 4, and a second resistor between pin 5 and the inverter/amplifier. This makes both pins short-circuit proof. The cable would work as well (as long as no short circuits are present) with just one resistor on either line (which should be 470 ohms instead of 2*220 Ohm), so there is no necessity to have a resistor between +5V and pin 4.
If the 220 ohm resistor is there, that pin is useless for powering the Chill and Phil adapter.