5654 X4 (4 Tubes) Tung Sol USA NOS Dark Grey Plates 6AK5 6J1 5654w Vacuum Tube
Item History & Price
| Reference Number: Avaluer:7580785 | Type: Vacuum Tube |
| Brand: Tungsol |
Platinum Tubes 5654 x4 (4 Tubes) Tung Sol USA NOS 5654 X 4
NOS Tung Sol 5654/6ak5.
White lettering, Dark Grey Plates.
No Returns; Will exchange defective tubes free of charge for 60 Days
WHY PLATINUM TUBES?
Once purchased and received by Platinum Tubes, vacuum tubes undergo exacting quality control measures to further assure reliable, sonically acceptable performance. Power output tubes are first mounted in test fixtures and burned in for 24 hour...s. This burn-in helps stabilize the internal operating parameters of the tubes before measurements begin. Each power tube is then tested and graded for technical characteristics specified by platinum tubes engineers. Only after a tube successfully passes these exacting challenges is it labeled and put into stock to be sold. Tubes not meeting these criteria are rejected to the supplier or disposed of.
Average tube life will depend on several parameters: product type, how the product is installed, loudspeaker efficiency, room size and acoustic damping, listening habits or average sound pressure levels, A.C. line stability and purity, and other circumstances. Generally, preamplifier tubes last up to 5, 000 hours, while power amplifier output tubes will last up to 3, 000 hours. Near the end of their useful sonic life, aging vacuum tubes may degrade the sonic character of the product(s) they are used in. The sound may become somewhat dry and lifeless, with a noticeable decrease in harmonic richness or bloom. Bass response may be diminished, and musical dynamics may flatten out or compress. Toward the very end of their service life, tubes may become noisy, noticeable as a slight rushing sound or rustling noise. It is far better to replace vacuum tubes prior to the end of their service life, before severe sonic degradation or outright failure occurs. Running vacuum tubes into failure may damage to other internal components and cause needless repair expense.
Factors which can shorten tube life include inadequate ventilation, overdriving loudspeakers at continuously high volume levels, severely fluctuating A.C. line conditions (e.g. sagging line voltage during summer peaks of air-conditioning demand), or severe interference pulses or electromagnetic interference.
SHIPPING INFORMATIONUSA Shipping FREE (USPS) (free shipping applies only for lower 48 states)International $15.00 (USPS)
NOS Tung Sol 5654/6ak5.
White lettering, Dark Grey Plates.
No Returns; Will exchange defective tubes free of charge for 60 Days
WHY PLATINUM TUBES?
Once purchased and received by Platinum Tubes, vacuum tubes undergo exacting quality control measures to further assure reliable, sonically acceptable performance. Power output tubes are first mounted in test fixtures and burned in for 24 hour...s. This burn-in helps stabilize the internal operating parameters of the tubes before measurements begin. Each power tube is then tested and graded for technical characteristics specified by platinum tubes engineers. Only after a tube successfully passes these exacting challenges is it labeled and put into stock to be sold. Tubes not meeting these criteria are rejected to the supplier or disposed of.
Average tube life will depend on several parameters: product type, how the product is installed, loudspeaker efficiency, room size and acoustic damping, listening habits or average sound pressure levels, A.C. line stability and purity, and other circumstances. Generally, preamplifier tubes last up to 5, 000 hours, while power amplifier output tubes will last up to 3, 000 hours. Near the end of their useful sonic life, aging vacuum tubes may degrade the sonic character of the product(s) they are used in. The sound may become somewhat dry and lifeless, with a noticeable decrease in harmonic richness or bloom. Bass response may be diminished, and musical dynamics may flatten out or compress. Toward the very end of their service life, tubes may become noisy, noticeable as a slight rushing sound or rustling noise. It is far better to replace vacuum tubes prior to the end of their service life, before severe sonic degradation or outright failure occurs. Running vacuum tubes into failure may damage to other internal components and cause needless repair expense.
Factors which can shorten tube life include inadequate ventilation, overdriving loudspeakers at continuously high volume levels, severely fluctuating A.C. line conditions (e.g. sagging line voltage during summer peaks of air-conditioning demand), or severe interference pulses or electromagnetic interference.
SHIPPING INFORMATIONUSA Shipping FREE (USPS) (free shipping applies only for lower 48 states)International $15.00 (USPS)
