Well, 12 amps should handle it, but you arde missing something.  50 
watts is output power, depending on class a b or c or variants there of, 
final efficency runs from 50 percent to 70 percent.  So in other words, 
say 50 watts at a 50 percent efficiency is 100 watts of power required, 
that is worse case for the final and a couple amps for the rest of the 
radio.  Only problem would be on very long transmitions warming up the 
supply.
My old hr 212, first 2 meter rig I had that was solid state was rated 25 
watts and pulled 4 amps on transmit.
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Fri, 23 Aug 2013, Howard, W A 9 Y 
B W wrote:

>        Unless my ohms law is rusty,
>
> 14 volts DC times 4 amps equals 56 watts.  Now add another 1 to 2 amps to
> operate the rest of the radio and you are just talking about 6 amps.  Your
> 12 amp power supply should be fine.
>
> Unless I am missing something.
>
> 73
>
> Howard #3
>
> ----- Original Message -----
> From: "Jim Gammon" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, August 23, 2013 2:13 PM
> Subject: Power supply requirements?
>
>
>> Yes, I hope they install the chip as well.  Far as your power
>> supply, it will work for the low and medium power settings on the
>> rig, but the high power is 50 watts out so you might be pushing
>> your luck with your present power supply if you use high power.
>> It will probably work but could be marginal.  Maybe someone on
>> the list will tell us the power requirements or you could call
>> HRO and ask them.  I am using a 30 amp switching supply but am
>> also powering the Ts-480 HF rig with it at the same time.  73,
>> Jim WA6EKS
>>
>> ----- Original Message -----
>> From: "Edward alonzo (KE5KRI)" <[log in to unmask]
>> To: [log in to unmask]
>> Date sent: Fri, 23 Aug 2013 13:57:24 -0500
>> Subject: Re: Hello from a new subscriber.
>>
>> lol thats my favorite thing to do take things apart then say now
>> how'd =
>> this thing go back together and how come I have more screws than
>> holes =
>> to put them in lol.
>> Well Lets just hope they installed it for me.
>> I hope my power supply I already own will work for this radio.
>> I think its 12 amps.
>> I use it to power a htx-242 at the moment.
>>
>> On Aug 23, 2013, at 1:54 PM, Jim Gammon <[log in to unmask]>
>> wrote:
>>
>> Hi Edward, well, I installed the chip in the TMV-71A as well
>> as=20
>> the TS-480.  The install was much easier on the 71A because
>> you=20
>> only have to remove the top cover and keep track of 8 small=20
>> screws.  With the 480 you have to remove both the top cover
>> then=20
>> a small cover inside the rig plus be very careful with a
>> bundle=20
>> of very small wires running between the inner cover and the
>> front=20
>> panel of the rig.  Anyway, the 71A is a piece of cake if you=20
>> aren't worried about taking things apart and getting them back=20
>> together again.  Jim WA6EKS
>>
>> ----- Original Message -----
>> From: "Edward alonzo (KE5KRI)" <[log in to unmask]
>> To: [log in to unmask]
>> Date sent: Fri, 23 Aug 2013 13:43:39 -0500
>> Subject: Re: Hello from a new subscriber.
>>
>> if by chance they didn't install this vgs1, how easy is it to
>> do=20
>> with no =3D
>> sighted assistance?
>>
>> On Aug 23, 2013, at 12:53 PM, Tom Behler <[log in to unmask]>=20
>> wrote:
>>
>> Edward:
>>
>> Congratulations on the TMV71A, and welcome to the list!!
>>
>> You will find many very helpful and supportive people here.
>>
>> In my opinion, the TMV71A is the most blind-friendly
>> accessible=20
>> VHF/UHF =3D
>> rig=3D20
>> out there, and I am sure you will absolutely love it!
>> Virtually=20
>> all=3D20
>> functions and menu settings are accessible via the VGS1 voice=20
>> vchip.
>>
>>
>> I don't know what would work best for you, but I have quite a
>> few=20
>> =3D
>> helpful=3D20
>> files on the radio, including a great audio tutorial that was=20
>> made by =3D
>> one of=3D20
>> our list members--Steve Dresser (WA1RTB).
>>
>> I can send you the files if you would like them.
>>
>> Just give me a preferred private e-mail address, and I'll take
>> it=20
>> from=3D20=3D
>>
>> there.
>>
>> Tom Behler: KB8TYJ, Big Rapids, MI
>>
>>
>> ----- Original Message -----=3D20
>> From: "Edward alonzo" <[log in to unmask]
>> To: <[log in to unmask]
>> Sent: Friday, August 23, 2013 1:16 PM
>> Subject: Hello from a new subscriber.
>>
>>
>> Hello:
>> My name is Edward Alonzo (KE5KRI)
>> I have been a ham sense 2006.
>> I live in northeast Arkansas about as far northeast in the
>> state=20
>> of =3D3D
>> Arkansas as you can go.
>> At the suggestion of another ham friend, I just got myself a=20
>> KINWOOD =3D3D=3D
>>
>> TMV-71 a with the VGS-1 storage.
>> I got it from ham radio outlet, and I asked them if they would=20
>> install =3D
>> =3D3D
>> the board for me and they said they would.  its on its way now=20
>> to my =3D3D
>> home.
>> If any of you have used this particular radio, I'd like to
>> know=20
>> how =3D
>> you =3D3D
>> like it.
>> Thanks for any help and great to be on this list.
>> =3D20
>
>