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![](https://dbtubes.com/img/p/en-default-large_default.jpg)
Budget priced miniature glass audio tubes manufactured by various manufacturers in the United States or Canada. These fine 9 pin double triode tubes come with black plates and top getters. They are glass etched 5670 U.S.A. with various manufacturers markings. Boxes are standard manufacturers printed 5670.
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Budget priced miniature glass audio tubes manufactured by various manufacturers in the United States or Canada. These fine 9 pin double triode tubes come with black plates and top getters. They are glass etched 5670 U.S.A. with various manufacturers markings. Boxes are standard manufacturers printed 5670.