Today's Message Index:
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1. 09:43 PM - Hardwire an old ICOM IC-A21 handheld radio (David)
2. 10:03 PM - Re: Hardwire an old ICOM IC-A21 handheld radio (Charlie England)
Message 1
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Subject: | Hardwire an old ICOM IC-A21 handheld radio |
I would like to provide power to an older ICOM A21 handheld radio in my
plane outfitted with an B&C SD-8, in the case of radio battery failure.
The radio came with a wall plug AC to DC adapter that puts out 13.5v at
1000mA. How can I hardwire power to the radio and make sure it limits the
current so I don't smoke my radio? Can I just cut the cord off the AC-DC
adapter and run it to a fuse block with a 1 amp fuse?
Thanks, David
Message 2
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Subject: | Re: Hardwire an old ICOM IC-A21 handheld radio |
The radio will only draw the current it needs, as long as the voltage isn't
too high=2E The fuse protects=C2- the wire=2E 1A fuse would be marginal,
since you can expect the radio to draw somewhere near the design output cu
rrent of the supply=2E
Cut the wire off the adapter, connect through a 2A
fuse to the a/c bus=2E Or better, just buy the proper connector and some w
ire, and keep the existing power supply intact=2E
=81=A3Charlie
=8B
On Mar 30, 2018, 12:48 AM, at 12:48 AM, David <websurfshop@gmail=2Ecom
> wrote:
>I would like to provide power to an older ICOM A21 handheld radio
in my
>plane outfitted with an B&C SD-8, in the case of radio battery fail
ure=2E
>The radio came with a wall plug AC to DC adapter that puts out 13
=2E5v at
>1000mA=2E How can I hardwire power to the radio and make sure it
limits
>the
>current so I don't smoke my radio? Can I just cut the cord o
ff the
>AC-DC
>adapter and run it to a fuse block with a 1 amp fuse?
>
>Tha
nks, David
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