C’mon man!
Sodium trimetaphosphate (also STMP ), with formula Na 3 P 3 O 9, is one of the metaphosphates of sodium. It has the formula Na3P3O9 but the hexahydrate …
Or does he mean SMPT?
The Simple Mail Transfer Protocol (SMTP)
Old stock power cords and SMTPs
I probably have a dozen or more each of old stock power cords and STMPs of various amps. Any reason to keep more than 2 or 3 of each? I’m sure there’s no market for them so I’d just toss. TIA