PD500 (=GP5, 6BK4) Philips Holland - nos tube

PD500 (=GP5, 6BK4) Philips Holland - nos tube

Shunt stabilizer triode for HT applications. Va max.= 25kV, Ia max.= 1.6mA, Pa max.= 30W, Ug1= -28 to -38V. When operating this tube will produce X -ray radiation! These were made by Mullard, Blackburn. The 6BK4 is similar to the octal base equivalent.

Key specifications

• Tube model: pd500
• Base / socket: B9D (Magnoval (9-pin))
• Heater: 7.3 V / 0.3 A
• Max anode (plate) voltage (Va max): 25 V
• Max plate dissipation (Pa max): 30.0 W

Links & datasheets

• Valve Museum / r-type exhibit
• Radiomuseum tube page
• R-type PDF datasheet

Technical data and equivalence information are compiled from public sources and may contain errors. Always verify suitability and ratings from original manufacturer datasheets before use.

NOS tubes are stored in our external warehouse. Most NOS tubes are therefore not available for immediate pickup from our physical shops. Please allow an additional 2–5 business days for delivery.