an audiophile classic! while all our open tubes feature a proprietary value added refurb, true nos are the crown jewels!

we have several in stock w/ boxes, audio grade phono ready and twice tested for unparalleled accuracy

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old stock hifidelity philips sq series e88cc audiophile tube, special quality w/ incredible rich tone and transparent imaging

dutch house cymbal style lively sparkley resolve, musical top to bottom transparency, linear stage w/ warm bass

these old production types have the most tube-era metallurgy warm bass and tonality depth in the mids

premium 6dj8 ecc88 upgrade! long life 10k hour, phenomenal vocal / instrument sound reproducer

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audio grade w/ studio audition, noise free ready for hifidelity preamps stereos and more

no flashing! give 100+ hours to fully settle w/ your amps voltage (break-in is important)

revered early production w/ authentic delta etch codes ⊿ includes old or new philips boxes

ships fast worldwide w/ tube box, combined post available, singles pairs or quads available