Heater Power Supplies

Looking for a 60V 5A power supply, here are some of the options that fell out of Google. Of course the TDK-Lamda would be perfect but it has a long lead time, and the Keysight equivalent is too expensive. What was left was lots of links to the antique Agilent 6646 and some BK supplies. The BK supplies are cheap because they are switching supplies. You wouldn't think that this would make a difference for pissing away electricity through a heater, but my boss was too scared to get something that wasn't a linear power supply.

Here's the old Agilent:

BK makes some nice single-output benchtop switching supplies: Here's the super cheap one, model number 1685B: https://www.amazon.com/Precision-1685B-Switching-Bench-Supplies/dp/B00B03VNTS/ref=asc_df_B00B03VNTS/

Here is the next higher level BK. It doesn't seem all that much different from the cheap one though. Model number 1902: https://www.amazon.com/Switching-Supplies-NIST-Traceable-Calibration-Certificate/dp/B072QLD3Z8/ref=sr_1_6

Here's a nice Keysight bench top supply that is capable of 50V and almost enough amps: https://www.keysight.com/en/pd-836423-pn-E3634A/200w-power-supply-25v-7a-or-50v-4a?cc=US&lc=eng

We used to have a lot of old Sorensen supplies around, but apparently they are quite antique because there are a lot of newer replacement models out now.

Here's a benchtop dual output model that's pretty impressive, the Sorensen XPF60-20 .https://www.testequity.com/products/24089/