1x Rare PinchedWaist 7308 E188CC GoldPin Matsu/Mullard GrailAudioTube +FreeShip

Early panasonic are top sonic echelon mullard alternatives, known for their transparent extended sound reproduction. The pinched waist ambiance adds air and depth to any position, w/ a rugged long life 10k hour, top 6dj8/6922 upgrade.

7308 e188cc also benefit from better low-end bass, and less microphonics important for low noise phono / mic stages. These rare collectibles utilize transfer of technology tooling + engineering expertise, all w/ japans hard vacuum excellence.

The holographic sound stage puts the listener or vocalist front row, immersing you in lush harmonics, and vinyl style intimacy. Often compared to mullard, these have more head room and less breakup, bringing out more details w/ a natural balance. For 6dj8/6922 circuits that are tough on tube lifetime, 7308 e188cc are popular in mono block setups, or rode k2 ntk mics. 1 x old stock rare pinched waist 7308 e188cc gold pin, nice to fair silkscreen, w/ branded or plain box. + undergoes a complimentary value-added refurbish and deoxit process one of a kind quality control. Full mutual conductance gm test, pristine w/ balance, singles/pairs/quads in stock: 100/101 % gm (65 % good). Our high power output test simulates circuits and applies up to 250v, more than many other testers. + useful life test pass (longetivity indicator) +.

Give several sessions or up to 150+ hours w/ your amps voltage to fully cure / break-in. Authentic vintage hifidelity audiophile mic tube / power tube / preamp tube curation by caliacoustics. See our site for new arrivals, reserve/request pricing, limited editions, sealed-box true-nos rarities + more collectibles.