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> New amperex 4-125A/4D21/5589 tube (6155/QB3/300 w/base)
New amperex 4-125A/4D21/5589 tube (6155/QB3/300 w/base)
NEW Amperex 4-125A/4D21 Tube (Similar to a 6155/QB3/300 but it has a metal base)
Comes with what you see in the pictures. If you don't see it, you probably wont get it.
Specifications are from Richardson Electronics and may vary slightly due to upgrades, options, or revisions this unit may or may not have.
Used in Ham Radio, Induction Heaters, Plasma Generators, RF Generators and much more.
List Price is: $287.00 NEW from Richardson Electronics
Link to the Datasheet: Amperex 4-125A/4D21 Tube Datasheet
The Amperex 4-125A/4D21 is a Premium Version of the 4-125A, featuring a zirconium-coated heavy graphite anode for high intermittent overload capability and superior gas sorption for long life.
The 6155 is the same tube, but without the metal base. In most cases, the metal base, with its associated additional cost, is unnecessary except in critical neutralization applications. The tubes are intended for use as an RF or audio amplifier.
Peak Anode Voltage (kV): 3.000
Typical Anode Current (A): 0.230
Typical Anode Dissipation (kW): 0.125
Typical Anode Voltage (V): 3,000
