[Test-Equipment] Dressen-Barnes Corp. Power Supply's

[DW Holtman]

Hello,

I acquired three Dressen-Barnes Regulated Power Supplies.

Models
22-102      150V at 70MA
22-103      250V at 70MA
22-104A   300V at 70MA

These look like they are very well made, have 5 tubes in each.

Does anyone know where I might get manuals for them?

Thank you in advance.

Best,
DW Holtman