Electron valve PSVANE WR50 tubes à vide Best Matched Pair Brand
Product Warranty
All items Guaranteed 100% Brand New In the original edition Box and Come from the original factory.
All items ONE-YEAR WARRANTY !!!
All items ONE-YEAR WARRANTY !!!
Shipping Time & Invoice Declare
All items ship with DHL/UPS/TNT/EMS, (DHL/UPS/TNT) About 3-7days delivery time, EMS About 7-15days delivery time.
We can Declare the Value of the Order as Customer's Remark!!!
We can Declare the Value of the Order as Customer's Remark!!!
Product Declaration
PSVANE TUBE WR50 is direct-heated type thorium tungsten cathode triode, can be used as class A1 and AB1 amplification.
Typical operating parameter
Heater voltage 7.5 V
Heater current 1.25A
Ua 350V
Grid voltage -63 V
Ia 45 Ma
Internal resistance 4.1K
Amplification coefficient 3.8
Output power 2.4W
