[MRCA] R-45/ARR-7 Power Supply?

[B. Smith]

Go with multiple transformers, easier to find and you will wind up 
closer to your voltages that you need.    Also check that HV value it 
might be a little high.
Z


On 5/27/2023 5:55 PM, W2HX wrote:
>
> Hello friends.
>
> I just acquired a nice ARR-7 that was electrically restored and 
> aligned by a very competent fellow (pic attached). He made a 60 Hz 
> AC-DC power supply for it, but it was crazy expensive. So here goes. 
> The specs I need are:
>
> 2,700 VDC @ 135 mA
>
> 25 VDC @ 350 mA (for scanning motor, which is half the fun!)
>
> 6.3 VDC @ 4.0 A
>
> Does anyone know if there is some existing power supply from some 
> other piece of equipment that might have similar specs that I could 
> begin hunting for? I know there is the PP-32/AR but my understanding 
> is that this is a 400 Hz unit (380 Hz to 1,000 Hz).
>
> If there isn’t another commonly available PS that would supply these, 
> I may have to resort to building one. On ebay there are transformers 
> with multiple secondaries but searching for such a beast is very 
> difficult. Any advice on searching for a multiple secondary 
> transformer? And of course, should all else fail, I could make a PS 
> with 3 transformers if necessary.
>
> Any suggestions welcome.
>
> 73 Eugene W2HX
> Subscribe to my Youtube Channel: https://www.youtube.com/@w2hx/videos 
> <https://www.youtube.com/@w2hx/videos>
>
>
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