Elenco Precision AC/DC Adjustable Power Supply Model XP-620 TESTED

Elenco Precision Deluxe Regulated DC Power Supply XP-620

Elenco Precision AC/DC Power Supply Model XP-750

Elenco Precision Deluxe Regulated DC Power Supply XP-620

Elenco Precision XP-50 DC Power Supply Untested

Vintage Lab-Volt Model 189 Power Station Buck Engineering Lab Power Supply

Elenco XP‑720 Precision AC/DC Bench Power Supply – ±1.25‑15 V, +5 V, 6/12 VAC

Sargent-Welch Scientific Co AC DC 50W Power Supply S-30972-60