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The UL-1 speed control puts out 5.2 V from the BEC circuit and apparently is designed to be compatible with the Tactic Rx since the UL-1 comes that way. It also outputs 2 amps. The Castle BEC was putting out 6V [ I metered it] although it can put out "up to" 10 Amps according to it's label. This was a pretty serious meltdown and I'm still a little baffled !
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2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono -
I'm guessing that there was a closed short within the Rx when it got wet allowing all 10amps from the cc bec through all at once. I've seen this happen a few times before. Also, the pic you show above shows that the heat generated from whatever went through the bec port.HK Genesis, DF Vortex, Baja 5T, Lazer ZX-5 sp, XXX, 8T, P51-D Mustang Shangrila, GP Giant P51-D Mustang, Blade 400 3D, with way too many more to list.
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2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /MonoComment
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The tactic is marketed for Cars, Trucks, Boats, Nitro, Gas and Electric so its more than likely it can take 6VComment
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I have 70 + runs on my Tactic Rx in my UL-1. I have a an external ParkBEC supplying 6volts to it. No problems here.
I think you had a short and it dumped 10amps into the Rx all at once.
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