Description:Matched Pair of Premium Vintage Soviet 6N23P-EV (6Н23П-ЕВ) REFLEKTOR Saratov Dual Triodes - Manufactured in 1975 - NOS (New Old Stock) - Ultimate Military/Space Grade Audio Tubes (E88CC / 6922 / CCa Top-Tier Counterpart)Up for sale is an absolute holy grail of Soviet tube engineering — a closely matched, investment-grade vintage pair of ultra-high-reliability dual-triode vacuum tubes, model 6N23P-EV. Manufactured by the world-renowned Reflektor (Saratov) factory in the USSR during the absolute pinnacle "golden era" of military production. Both tubes are in pristine New Old Stock (NOS) condition, displaying heavy original purple military inspection stamps.Production Dates & Elite Factory Pedigree:

• Brand: Reflektor (Saratov, USSR) - Stamped with the iconic historic factory "Shield" logo on the glass envelope
• Production Date Codes: V-75 (May 1975) and VII-75 (July 1975) - Perfectly matched from the same summer 1975 production block
• Premium Indexes "E" and "V": "E" denotes an extended lifespan of over 5,000 operating hours; "V" indicates supreme mechanical ruggedness, ultra-low noise parameters, and tight factory tolerances.
• High-Reliability Marking: Features massive, highly visible hand-stamped official Soviet Military Rhombus (Diamond) quality marks with inspector code "13" and the "75" year indicator written directly on the glass.

The 6N23P-EV tube is globally revered by High-End audiophiles as the ultimate and finest sounding counterpart to elite European and American E88CC / 6922 / CCa / CV2492 / 6DJ8 / ECC88 families. Built to rigid aerospace standards with a robust frame-grid internal layout, these tubes are highly sought after as a major sonic upgrade for premium Hi-Fi tube preamplifiers, high-end DACs, phono stages, and top-tier headphone amplifiers (such as Audio Research, McIntosh, Audio Note, and custom master builds). They are celebrated worldwide for delivering a jaw-dropping three-dimensional soundstage, holographic imaging, liquid midrange, and crystal-clear high-end treble extension while maintaining complete immunity to microphonics. Finding a clean, authentic 1975 pair from the coveted Saratov Reflektor military production with such prominent military diamond stamps is an extraordinary find.Key Features and Specifications:

• Brand: Reflektor Saratov (Made in USSR)
• Model: 6N23P-EV / 6Н2П-ЕВ / E88CC / 6922 / CCa / 6DJ8
• Tube Type: High-Reliability Ultra-Low-Noise Dual Triode (Premium Audio Grade)
• Base Type: Standard 9-Pin Miniature (Noval, B9A)
• Filament/Heater Ratings: Vf 6.3 Volts / If ~0.3 Ampere
• Condition Grade: NOS (New Old Stock in protective packaging)
• Physical State: Thick shiny silver getters, heavy-duty internal plate design, perfectly straight pins, and original factory markings accompanied by huge purple military diamond stamps

Condition:

• Status: New Old Stock (NOS).
• Visual state: Pristine collectible condition. Flawless glass envelopes, perfect internal structural symmetry, clean unbent pins, and beautiful historical look, exactly as shown in the close-up photos.
• Testing: Visually inspected and guaranteed authentic vintage Soviet military space-grade production with full emission.

Perfect For:

• Ultimate upgrades for High-End Hi-Fi tube preamplifiers, DACs, and reference headphone amplifiers (Tube Rolling)
• Replacement for ultra-expensive vintage Siemens CCa, Telefunken E88CC, or Amphex 6922 tubes
• Custom DIY boutique audiophile reference builds requiring frame-grid dual triodes
• An investment-grade addition to any serious museum-level vintage vacuum tube archive

You will receive the exact matched pair of 2 authentic Reflektor 6N23P-EV gold-standard tubes from the 1975 military batch pictured in this listing.Shipping and Packaging:
Worldwide shipping with a tracking number provided. Elite vintage glass vacuum tubes require maximum shock protection during international transit; therefore, each tube will be individually wrapped in multiple thick layers of shock-absorbing bubble wrap and shipped inside a rigid, oversized cardboard shipping box to guarantee absolute safety and avoid any glass, plate, or pin damage during delivery.If you have any questions, feel free to ask before buying!