1 x NOS BronzePlate CopperGrid Raytheon USA 5687WA Milt ~ GrailAudio 7119 E182CC
Specifications
| Return Shipping Will Be Paid By | Buyer |
| All Returns Accepted | Returns Accepted |
| Item Must Be Returned Within | 14 Days |
| Refund Will Be Given As | Money Back |
| Brand | Raytheon |
| Type | Preamp Tubes |
| Country/Region Of Manufacture | United States |
breath of life vintage raytheon! revered by audiophiles for their exquisite sonic detail, micro-dynamics, and neutral transparencythe smooth yet sweet sound stage reveals phenomenal tonal complexity, punchy highs w/ no edge, and highly musical imagingthis high resolution premium metallurgy reproduces sound w/ incredible definition, like a live-concert in realism and fidelitythe spatial separation, rich harmonics, expansive holographics, and dimensional bloom, all contribue to the collectible lore the phenomenal nickel and tungsten bronze plate design radiates heat better, and enhance tone and warmth characteristics these also feature copper wrapped grids to minimize cathode current contamination, and better high-temperature dissipation raytheon usa have a long tenured history producing military and industrial grade vacuum tubes, as far back as 1925!known for their impressive quality control, craftsmanship, strict testing process data sheets, and incredible sound outputthe highly regarded catalog (especially 12ax7) was considered the quietest! well before telefunkens late '50s market emergence this premium 5687wa edition is the highest grade ever made, sought after for its low noise, long life and rugged military qualitythe 5687 is a unique general purpose audio tube that can be used at high current and low voltage, making it high in perveance plus highly regarded for incredibly low distortion, and peak-current capability, far in excess of more conventional drivers 1 x old stock raytheon usa bronze plate premium military 5687wa audio/preamp tube, w/ raytheon tube box includedtwice tested audio grade + complimentary value-added refurbish and deoxit process ~ one of a kind quality control full mutual conductance gm test, pristine nos, several in stock: tube1: 104/101 ~ tube2: 108/118 % gm (65 % min good)our high power gm output test applies up to 250v, more than many other testers!+ useful life test pass (longetivity indicator) + an impeccable gas/leak/short check give several sessions or up to 150+ hours w/ your amps voltage to fully cure / break-inships well packed worldwide w/ free economy postage! especially popular in dht amps, here is a very extensive application list for 5687 compatible uses:Audio Note M3, Manley Jumbo Shrimp, Ayon CD player, Audio Note DAC 5 Signature and Audio Note amp kitsM5 preamp, M9, KR Enterprise 32BSI integrated SET amp, Modwright 9.0, Denon modded CD playersSony NS999ES CD player, Opera Audio Consonance Cyber 800, Cyber 211, Zanden, LUX 300B amp,Kondo M1000Artemis Labs linestage amp, Emotive Audio Sira, Ray Samuels B52 and Raptor, Audio Tekne TFM-9412Sonic Frontiers Power 2, Audio Experience balanced A2 pre, Ongaku, Audio Note, New Audio Frontiers Legend II preLoth X JI300,Audio Thrills, Mastersound, Sophia Electric KT88 Tube Amp, Icon Audio PS3 phono power supplyAlmarro, Bottlehead, Aria VW5X, Audion 845 Black Shadow, Jinro Amp, Bullplugs + more! ~ authentic vintage hifidelity audiophile mic tube / power tube / preamp tube curation by caliacoustics ~see our official site for new arrivals, limited editions, sealed-box true-nos rarities, and more collectibles
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