via this eBay listing
Here's an interesting device from the recent past. According to the listing details below the final batch came out in 2017. It's from OTBElec and this appears to be the first post to feature them on the site. The www.otbelec.com website is no longer live.
This one was spotted and sent in via
M Me.

via the listing: "I bought this new & it was part of the final batch made in 2017. I stored it away because my SP12 required servicing & the interface subsequently was never used (or even unwrapped). This may be the only brand new OTB MIDI in existence.
"The SP MIDI converts non-standard MIDI messages from the SP-1200 to regular MIDI. One such message is note off, which is required to set the length or duration of sequenced notes. The SP MIDI also translates the pitches of bank D to a continuous range of notes to store and sequence external devices. When recording it is necessary to set rec mode.
Internal mode is used to select up to three samples which then have their 16 pitch levels mapped out over the keyboard. Now supporting note off you can play like you would normally expect, where the sample mutes when the key is released. Excellent for looped samples, i.e. bass lines.
External mode is used to sequence other instruments. It uses bank D1-D6 to record notes on one MIDI channel and D7-D8 on another channel. D1-D6 is mapped to a full note range by pad number and pitch, making it possible to play a melody using the pads. Also note off is sent as you hit the pads a second time, unless F1 oneshot is selected. D7-D8 is combined together to give a full range of note numbers and is best used with a keyboard.
Dynamic velocity is maintained, if not Full Level is selected.
The SP MIDI firmware can be updated using a computer with a MIDI interface.
These features also allow pitching and using the loop function on a S950."
























