Don't forget Dynaco "DynaKits" that got folks into Hi-fi at a REASONABLE price!!!Now the Dynaco St70 is back-assembled only and costs over 2 grand.Remember building St 70's for radio stations and others.Very easy to build-and they worked so well.also built St 120,St80,St400.Also Scott,Fisher had kits-mainly Amps.Same with Eico-amps,test gear.So mis kits-they were fun and saved a few dollars.