Date: 12/31/1969 Views: 4483
Date: 12/31/1969 Views: 3795
Date: 06/12/2010 Views: 3647
Date: 08/23/2023 Views: 209379
Upper left: RMS (Root Mean Square) Meter Circa 1950s Lower Left: Signal Generator (Tone Generator), much newer than RMS Circa 60s/70s Right top and bottom: Power Supplies Circa 70s Way right: Scope (can only make out leg) Circa 80s