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PSVANE WE845 Xtreme Series 1:1 Replica Vaccum Tube Factory Matched 845 Electron Lamp HIFI EXQUIS

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PSVANE

Psvane WE845 Xtreme Classic Series, Matched Pair in exclusive gift boxes

The PSVANE WE845 Western Electric Replica get shipped as factory matched pair 

a timeless beauty in perfect build quality for years of your audio performance

More details

$594.15

$699.00

-15%

  • 2 PCS
  • 4 PCS

4

 

 
 
History of 845 tubes: 
 
845 tubes were first introduced by RCA in early 1930s to compete with then industry leader Western Electric. This is also the first 3-element vacuum tube to delivery 60 watts per channel power when used in push-pull circuit design with a manageable physical size. The RCA845 became a milestone of vacuum tube production.
 
In 1937, Western Electric responded to competition from RCA845 with their newly designed WE284A 
which was considered by users to deliver more lively sound than the RCA845 and with very similar electric specifications. WE284A then became the new benchmark of 845 tubes for the entire industry.
However at that time the electronics industry didn
t have many applications for this type of high output power tubes so demand was very limited. Not many WE284A tubes were produced then and even fewer are still around today.
 
Owning a pair of original Western Electric 284A is a dream for many HiFi audiophiles who own 845 tubes amps, in order to experience what the past glory of tube production could bring to their music system today. However, the scarcity has driven the price to very high level that many audiophiles cannot afford or obtain.
 
Creation of Psvane WE845: 
The Psvane WE845 is a hybrid creation by combining the characteristics of both RCA845 and WE284A tubes. The first Psvane WE845 prototype was sent to Japan in late 2012 for evaluation and the reviewer commented: 
It
s an ultimate pleasure to re-live the RCA845 sound from Psvane WE845 and I hope you can improve the sound to the WE284A level.
. Psvane design team took another 8 months to improve on design then we come to have today
s final version of the WE845 Replica.

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filament heating
U f---------------------------------------10 V
If----------------------------------------3.25 A

(HIFI EXQUIS 1101017)

Limit rating
anode voltage----------------------------------1250 V
anode dissipation power-------------------------------75 W
The largest signal output power--------------------------150 W
The anode current largest -------------------------------120 mA;


interelectrode capacitance
input capacitance----------------------------------6 PF
output capacitance----------------------------------4.5 PF
transfer capacitance----------------------------------14.5 PF

(HIFI EXQUIS 1101017)
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


Recommend working status (reference)
Single tube Class A1 amplification:
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

(HIFI EXQUIS 1101017)

Push-pull Class AB1 amplification:
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

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HiFi EXQUiS use secure package to send the tube, We guarantee the tube will devliered to you with good condition.

But thank you always to check the tube state face with courier during delivery process.

PSVANE HIFI and UK Series tube have 6 month for guarantee

PSVANE TII and Xtreme Series tube have 1 year guarantee

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