Description: vintage usa 7581a / kt66 are premium industrial grade 6l6gc, w/ more power and typically provide additional clean head roomthis dual disc-getter edition has more 'sonic horsepower' and articulation, revered for its balanced rich detailed sound stageupgrade your bass and overall fidelity w/ vintage clear-top usa power tubes, great for fender ampeg music man and more 1 x old stock 7581a / kt66 w/ nice silkscreen visible and thick double side flashing, plain or branded tube box includedall tubes also undergo a complimentary refurbish and deoxit pin process! one of a kind value-added quality control full mutual gm conductance test, 3 in stocktube1: 103 % gm (65 % min good) nice guide pin and visible national silkscreen (photo 1-3)tube2: 103 % gm (65 % min good) broken guide pin yet marked for easy install, nice silkscreen (photo 4) tube3: 103 % gm (65 % min good) broken guide pin yet marked for easy install, nice silkscreen (photo 4)+ important life test pass! (a key longetivity indicator) + leak / short / gas check give several sessions or up to 100+ hours w/ your amps voltage to break-in / settle-inships well packed worldwide w/ free economy postage! ~ authentic vintage hifidelity audio / power / preamp / mic tube curation by caliacoustics ~see our official web site for new arrivals + reserve/request options + true-nos sealed box rarities + limited run special editions + pinched waist collectibles
Price: 195 USD
Location: Leander, Texas
End Time: 2025-01-12T23:30:47.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
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: National
Type: Preamp Tubes
Custom Bundle: No
Model: 6l6gc 6l6 6l6gb 5881 kt66 7027 7581
MPN: 6l6gc 6l6 6l6gb 5881 kt66 7027 7581
Country/Region of Manufacture: United States
Modified Item: No
