Originally Posted by rcguy1958
Curious to know which of the ZTW speedos most are using ...the "A" or "B" series.
The "b" series is interesting with that 5 amp sbec, but unsure if it's needed
I think all my planes have ZTW in them, maybe a HK or two in some of the foamies. Alll of mine are A series or the original (which still have a 5.5V BEC) haven't tried any of the B series as of yet. The originals varied the Amperage of the BEC depending on the size (3A for the 30A ESC, 5A for the 70A ESC.) All had the voltage set at 5.5 volts though. The B series have a jumper to set the voltage out, 5, 5.5, 6 IIRC.