[ARC5] RBx Power Supply Question

[J Mcvey]

 The good news is that the military equipment is overbuilt. However, I would be concerned about smoking the transformer. 

The largest draw will be the heater supply. The B+ and whatever else can probably be shared, but the two sets of heaters are going to stress the windings. 

A simple solution would be to use an auxiliary heater supply for the second set. 

    On Thursday, January 2, 2020, 5:32:22 PM EST, Roy Morgan <k1lky68 at gmail.com> wrote:  
 
 
> On Dec 27, 2019, at 3:24 PM, Mark K3MSB <mark.k3msb at gmail.com> wrote:
> ...
> For testing I’m powering the RBA from the same supply as my RBC and things have been working fine.  ...
> 
> The manual says one power supply can run two radios in an emergency,  but nowhere does it state for how long etc. ...
> So, any idea of how long one can run two radios off of one power supply?

Being a little bit familiar with military equipment, (a little), I suggest you run two receivers from the same supply and if something bad happens in 5 or 10 years let us know.

If you are really concerned, measure the temperature of the power transformer in the single-radio supply, and also in the two-radio supply.  You may measure a difference but I expect it wii not be alarming.

Roy
Who mourns the loss of his RBB and RBC and two supplies.

Roy Morgan
K1LKY since 1958
k1lky68 at gmail.com




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