Virtual Valve Museum
Virtual Valve Museum | search: (use * for wildcard)
About the museumMuseum exhibitsUpdates, new exhibits etc.EquipmentSupporters
View the guestbookDocumentsValves wanted!Valves for sale or for tradeLinks to other sites, suppliers etc.

NR52 triode

Size
This valve measures 105x40mm overall and has a B5 base

Heater voltage4V
Heater current650mA
Max anode voltage250V
Mutual conductance *3.5mA/V
Amplification factor *40
Anode impedance *11.5k ohms
Capacitances
Cag3.3pF
Cgc5.3pF
Cac4.2pF

*: At Va=250, Vg=-4.5V
PinFunction
1Anode
2Grid
3Heater
4Heater
5Cathode + metallising

NR52

This file was last modified15:38:03, Thursday August 28, 2014