New results from the DELCO experiment at SPEAR are presented. New data and reanalysis give conclusive evidence for the τ heavy lepton
lepton with mass 1.777+.005−.009 GeV/c2. Preliminary branching ratios for the τ are discussed, along the analysis of the electron momentum spectrum, favoring V‐A. A preliminary look at D beta decay at ψ″ (3770) in terms of K and K* (890) is also discussed.