Here we have a sextet of highly desirable vintage RCA 5691 red base tubes.Manufactured, in the USA by RCA and branded GE except for one single branded RCA.Purchased from Upscale Audio.All tubes have been bench tested on a B&K tube tester and are within 10% of NOS values.As you maybe aware the 5691 RCA is a premium and desirable tube for audio application.
Their acoustic signature is extremely pleasant exhibiting articulate bass,natural midrange and detailed top end air.
No gas leaks,glass discoloration or bent pins.Etching is mostly intact.
Offered at $250 for all 6 plus shipping from 49783.Payment by Paypal plus 4%.Shipping immediate post payment and I would invite you to check my audiogon feedback under my member name.
