[sdiy] Combined output / headphone jack?

[Neil Harper]

On 2024-10-14 15:42, Andy Lambert via Synth-diy wrote:
> The Prophet VS does this. The Left jack is Left/Phones and the Right
> jack is Right/Mono. I haven't looked into the implementation but the
> schematics are widely available.

thanks andy, here are the schematics:
http://www.retrosynth.com/docs/pvs/pvs_service.pdf

output section on page 11.

looks like the stereo output and headphones are being driven by the same
circuit, NE5532's with 220 ohm series resistors. and if I understand the
normalizing properly, the "shorting" situation I was worried about only
happens if the LEFT/PHONES output is used with a TS cable without a
cable in the RIGHT/MONO jack. even then there's still the 220 ohm series
resistor in place so it's not even a short.. wonder if the 5532 would care?


--
/// Neil Harper
/// Every Wave is New Until it Breaks