Matched 4pcs QUAD ...  Early units ...  1962 ... 50 years old!  NOS oil capacitors from Western Electric tube equipment, Bell System  -- absolutely beautiful letters and shinny original grey paint, all original 50 ++ years old, matched & tested set.  Study all photos below of actual units and under test. The paint is absolutely beautiful on ALL 4, no dents, safe longtime storagefor many years. Great looking, will present perfectly (see photos).  Perfect for amplifiers, preamplifiers and crossovers.  They have tested at FULL operating 400 volts on Sencore tester. WORKING Great , they were thoroughly checked out, and found to be PERFECT - no leaks, low ESR, and  exactly 4uf capacity !  See reports in picture. These are the sealed terminal / lug / hook end type that all tube amp DiY builders want -- because they will last forever (they may outlast our children!), withstanding high volts (WECO's ratings were very conservative)  and have wonderful timbre & musical detail. They are perfect for all vintage power supplies and single ended, push-pull amps / preamps. Useful in many ways for your vintage audio projects...and the original WECO sound. Excellent for crossover / speaker projects as well!  Very difficult to find in MINT Condition and completely tested. Includes original WECO mounting hardware. Fast OVERSEAS shipping in doublebox.  All 100% happy customers, study & read our feedback & testimonials.