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

 


______________________________________________________________
MRCA mailing list
Home: http://mailman.qth.net/mailman/listinfo/mrca
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html