KitBuilder

It's been forever since I have used a wall wart type charger. I plug in the xmitter only and am getting a red light.. on the xmitter side..... when I plug in a 4.8 v rx battery I get a green light on that side along with the red light on the xmitter side. I don't need to chg a recvr battery so I assume these chargers don't need both plugged in at the same time in order to work?

Meaning.. I can charge just the xmitter itself?

oldvet70

My Feedback: (10)

You can do the Tx by itself, the Rx by itself or both at the same time. The light will come on for each independent of the other.

KitBuilder

Thks.

skidd1000

The red light on the transmitter side makes me wonder if you have a problem with polarity. I know my jr raido charge jack is opposit of my futaba raido. I need to reverse the plugs on my charger to do the jr.

Rodney

No problem on reversed polarity. many of the wall warts have different colors for differentiating which (TX or RCR) port is being used. Some even have what looks like a single LED but are really two color units which change color depending which port (or both) are active.

KitBuilder

not really sure how I can have anything reversed... the xmitter plug is the tube type that can only fit one way...
Mike (unless I;m missing something)
Thanks

Rodney

I think that what Mike means is that you cannot use a wall wart that came with one brand of radio with a different brand of radio; i.e. you can not use a Futaba wall wart with a JR radio or vice versa as they have a different polarity on the transmitter connector. JR is backwards from most other brands.