High Polymer Compound Carbon (HPCC) coating is for the first time used on vacuum tube production.

Compared to traditional carbon spray technology, HPCC coating will allow greater concentration of electrons,
enhance and maintain stability of the electron flow, maximize « secondary electron emission surpression » from the glass enclosure,
in turn reduce effects of electron swirl which generates internal noises from the vacuum tube itself.

All Psvane tubes get retested at TAD to ensure the perfect quality even after the long trip from factory to us.

the NEW Psvane MKII T-Series:
Carbon coating inside the glass envelope for better heat dissipation and stability of electron tube performance.

Teflon Base with Oxidized Aluminum Collar:
The MKII series tubes use exquisite Teflon material for the base to improve on low conductivity and stability. The amber color oxidized aluminum collar around the Teflon base is will avoid corrosion as well as finger prints to maintain a prestige appearance.

Psvane logo and serial number
The Psvane logo and serial number are engraved on the base: The Psvane MKII series have its logo and serial number engraved in the tube base facing all in same direction. No print on the glass does disturb the appearance of the beautiful shaped glass envelope.

Glass Quality:
A higher quality glass is used for the MKII series to increase the reliability and stability which does slightly increase the total weight of each tube.

Sound Quality:
The MKII series offers superb sound quality. The new coating materials offer an even better music presentation. Even compared to the great sounding Mark I T-Series you will experience slight 3D imaging improvement, layering and clarity

Product information « 6005W aka 6AQ5 / EL90 NOS Pentode, USA »
6005W JAN/GE aka 6AQ5A / 6AQ5W / EL90 / 6HG5 / 6669 / CV4019 NOS-NIB Pentode
the 6005W is the Super-6AQ5 made by General Electric for JAN=Joint Army-Navy

The W marking at the end of the type number refers to the particularly robust design in accordance with military requirements.

6AQ5 were used in the Fender Musicmaster Bass Amp and in the Unversal Audio LA-610 / LA-610SE as V5 and in many headphone amps.
The 6005W is a clear upgrade to the standard 6AQ5 in terms of clarity, detail and longevity.

Recommended Operating Conditions (reference value)
class B(A-F) for two tubes
typical working condition limited parameter
Ua—————— 1250 1500 1250 V
Ia (mAx.sig per tube)——————- 210 mA
Pa (in) (mAx.sig per tube)————— 315 W
Pa (per t —————————- 125 W
Ug———————————-—16 V
Ug(pk)—————-235 280 V
Ia (0)—————–148 84 mA
Ia（mAx.sig）———-500 600 mA
Pd(mAx.sig)————6 7 W
RL(a—a)—————6.7 8.2 KΩ
Pout(mAx.sig)———–300 370 W
class B(R-F)：
Carrier conditions the biggest modulation coefficient is 1 per tube
typical working condition limited parameter
Ua—————— 1250 1500 1500 V
Ug———————————-—10 V
Ia ——————-135 115 150 mA
Pa (in) ——————————185 W
Pa ———————————125 W
Ug(pk)—————-70 70 V
Ig ——————-15 15 mA
Pd——————-11 7.5 W
Pout——————55 57.5 W

845B is direct-heated type thorium tungsten cathode triode
which can be used as class A1 and AB1 amplification.
Mica free construction type

dimensons (exemplaric): 190.2 mm total length, 180.1 mm length without pins, 58.5 mm diameter glass, 47.0 mm diameter base

Heater
Uf————————————10 V
If———————————-3.25 A

Maximum Rating
Ua———————————-1250 V
Pa————————————75 W
Pout(max.sig)————————150 W
Ia(max)——————————120 mA

Direct Interelectrode Capacitances
Input———————————-6 PF
output——————————-4.5 PF
Grid to plate———————–14.5 PF
Static parameter
Ua———————————-1250 V
—Ug———————————-200 V
Ia————————————80 mA
Gm————————————-3 mA/V
ri———————————–1.7 KΩ
u————————————–5
RL———————————–3.4 KΩ
Ug(pk)——————————–69 V
Pout———————————-15 W

Recommended Operating Conditions（reference value）
class A1 .single tube：
Ua——1000 1000 1250 V
—Ug— 145 155 209 V
RL———–6 9 16 KΩ
Ia————90 65 52 mA
Gm———3.1 — — mA/V
Ug(pk)–— 110 148 V
ri———-1.7 1.9 2.1 KΩ
Pout——-24 21 24 W

Push-pull.class AB1：
Ua——————- 800 1000 1000 1250 V
—Ug—————– 125 170 175 225 V
RL———————- 4.5 4.6 4.6 6.6 KΩ
Ia————————–80 70 40 40 mA
Ug(pk)——————177 240 — — V
Ia（mAx.sig）——-170 230 230 240 mA
Pout———————–40 75 75 115 W

Recommended Operating Conditions (reference value)
class B(A-F) for two tubes
typical working condition limited parameter
Ua—————— 1250 1500 1250 V
Ia (mAx.sig per tube)——————- 210 mA
Pa (in) (mAx.sig per tube)————— 315 W
Pa (per t —————————- 125 W
Ug———————————-—16 V
Ug(pk)—————-235 280 V
Ia (0)—————–148 84 mA
Ia（mAx.sig）———-500 600 mA
Pd(mAx.sig)————6 7 W
RL(a—a)—————6.7 8.2 KΩ
Pout(mAx.sig)———–300 370 W
class B(R-F)：
Carrier conditions the biggest modulation coefficient is 1 per tube
typical working condition limited parameter
Ua—————— 1250 1500 1500 V
Ug———————————-—10 V
Ia ——————-135 115 150 mA
Pa (in) ——————————185 W
Pa ———————————125 W
Ug(pk)—————-70 70 V
Ig ——————-15 15 mA
Pd——————-11 7.5 W
Pout——————55 57.5 W

manufacturer specification:

Heater
Uf—————————————10 V
If—————————————-3.25 A

Maximum Rating
Ua———————————-1250 V
Pa————————————-75 W
Pout(max.sig)——————–150 W
Ia(max)—————————-120 mA

Direct Interelectrode Capacitances

input———————————-6 PF
output——————————4.5 PF
grid to plate———————14.5 PF

Static parameter
Ua————————————–1250 V
—Ug————————————-200 V
Ia—————————————80 mA
Gm————————————–3 mA/V
ri—————————————-1.7 KΩ
u—————————————-5
RL—————————————3.4 KΩ
Ug(pk)————————————69 V
Pout————————————-15 W

Recommended Operating Conditions, reference value
class A1 .single tube：
Ua—–1000 1000 1250 V
—Ug— 145 155 209 V
RL—–6 9 16 KΩ
Ia——90 65 52 mA
Gm—–3.1 — — mA/V
Ug(pk)–— 110 148 V
ri——1.7 1.9 2.1 KΩ
Pout—-24 21 24 W

Push-pull.class AB1：
Ua—————— 800 1000 1000 1250 V
—Ug—————- 125 170 175 225 V
RL——————– 4.5 4.6 4.6 6.6 KΩ
Ia——————–80 70 40 40 mA
Ug(pk)—————-177 240 — — V
Ia（mAx.sig）—–170 230 230 240 mA
Pout———————40 75 75 115 W