I was in search of a good power supply for my radio. Apart from the batteries I have tried all the AC wall adapter or the SMPS based supplies seem to introduce noise in the radio. The SMPS being the worst.
I have an old PSU as in below pic unused in my collection. As per the data sheet its a high quality voltage source which made me think of using it for this purpose.
It has pins A,1,2,3,4,5,6,7 which corresponds to Adjust, - Sense, B-, +Sense, B+, Not Used, AC, AC. AC is rated for 115V. Its max current is 150mA, which is well within my current draw.
What is the use of the _ and + SENSE pins? I've seen this on an old PSU unit I had with me back from the 1960s. Will it improve my output in any manner?
Update: So, I unpacked the PSU today and did some adjustment and checking now.I connected the (-SENSE & -B) and (+SENSE & +B) together and adjusted the voltage to 8.8V. Now, I tried removing the SENSE lines from both +B and -B terminals and measured the voltages across the each terminals: -SENSE & -B: 13.6V, +SENSE & +B: 8.1V, +B & -B: 22.4V, -SENSE & +SENSE: 0V . So, as our members have explained the sense lines seem to be very important in this case.