Served for several years to synchronize two TRS8 to be in 16 runs with two half-inch magnto. Then I synchronized a TSR8 and MSR16 for the 24 tracks. Then I used it to enslave the MSR16 a computer with sound card for the direct-to-disk.

Most. Probably to synchronize the analog Tascam excellent with all types of machines of all brands.
Gnrateur all formats of SMPTE and MIDI complete.
If we remain in the tascam, also serves as a control panel for magntos (Tascam TSR8, MSR16, MSR16S, MSR24, MSR24S, 238, 644, 688) with transport, placement of runways and increasing the number of locators (that is, places of recordings in memory).
The ct impressive is when you couple more magntos losqu'on analog or analog and synchronizes a magnto a magntoscope ... frle finger on the spool of magntophone matre or you make a slow and the magntoscope magnto slave follows the MTS1000 lela dcllration instantly.
In fact it is normal because this is asked to do, but it's always impressive to see.
The least? Especially not to lose the original wiring. I have to make a custom made per lectronicien Dassault when I needed a longer cable.

Good quality price since after the second hand market

If this is the right choice? But it is the only choice to make if you sync a possde magnto 238, TSR8, MSR16, MSR24. O On the note ... since there is no comparable product.
The big plus I think it's the possibility of shuffled numrique technology with the latest generation magntos analog Tascam is to say most m re and the most successful.