The 1330 / 1390 / 1490 amp, because of its low price is one of the most widely available Danelectro-made Silvertone amps today. On this page, I've included a few shots of a Dano 'Cadet' model amp for you to compare and contrast. The Cadet has the same basic look, but as you can see, it was the double-decker chassis design of the 'higher-up' Silvertones and the larger tubes of the 1330/90.

Introduced:
Fall/Winter 1954 at $24.95 as model 57 G1330
During its loooong career it was:
57 K, D/H/G UI 1330 then
57 D/H/G/Y 1390
57 F/K/H/A 1430
It was named the 'Meteor' from D1390 (1957) through K1430 (1960)

Retired:
Spring/Summer 1966 at $22.95 as model 57 G1430