It can substitute of all Chinese 845 tubes from Shuguang and Psvane.
The same description of Psvane WE845 applies to the new WE845 by LINLAI.
WE845 replica tube is a hybrid creation by combining the characteristics of both RCA845 and WE284A tubes.
‘WE845 by LINLAI’ can replace all current Chinese production 845 tubes in high end audio application. It uses exactly the same material and adopt the same craftsmanship as Psvane WE845.
Users should follow your amp manufacturer’s suggestion in tube substitution and bias adjustment to ensure safe use of high voltage 845 tubes. Nearly all new production 845 amps are shipped from various manufacturers with Chinese entry level 845 tubes as stock tubes – which can be replaced by this ‘WE845 by LINLAI’ for sonic upgrade.
Measurement: (in mm)
Below is the size measurement of the WE845 tube – there is a glass tip on top of WE845 tube, so please take into account of the overall height if your amp has a tube cover. In terms of glass enclosure diameter, the Linlai WE845 is of same diameter as Shuguang 845B tubes (the most widely used 845 tubes in new production 845 tube amplifiers).
WE845 is direct-heated type thorium tungsten cathode triode, class A1 and AB1
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 Inter-electrode Capacitance
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
