Electronic Research Co. Model 130 Portable Reference Oscillator

Standard Reference Labs 10V Triple Standard with a Second Unit Included

Fluke 731B DC Reference Standard For Parts Or Repair

General Radio / GR / IET Labs 1404-B 100 pF Reference Standard Capacitor 1404B

Vintage Sensitive Research Instrument Corp. Polyranger Universal DC

Radian Research RM-10 Metronic RM-10-06 Portable Watthour Standard

Ward-Beck Systems POD33 AES-EBU Digital Audio Reference Signal (DARS) generator

(VINTAGE!) GR General Radio GenRad 1404-B 100pF Reference Capacitor