metal / ceramic radial beam tetrode
These are Eimac tubes. They are NOT made in China!
The 8560AS Vacuum tube is a compact metal/ceramic radial
beam tetrode having a plate dissipation rating of 200
Watts with conduction cooling. The 8560AS is intended for
Class AB, SSB, linear and FM, CW, and RF amplifier
service. The 8560AS has an indirectly-heated oxide
cathode.
The forced air 8560AS is intended for use as an RF amplifier
or oscillator or in audio amplifier or modulation
service. It has electrical characteristics similar
but not identical to the 4CX250B/7203. This tube
takes a special 9 Pin socket.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 2.6 A
Characteristics:
Plate Dissipation (Max.) ........................200 Watts
Screen Dissipation (Max.) ........................12 Watts
Grid Dissipation (Max.) ...........................2 Watts
Frequency for Max. rating (CW) ..................500 MHz
Amplification Factor ..............................5
Input ..........................................16.5 pf
Output ..........................................4.6 pf
Feedthrough ................................... 0.04 pf
Length 2.45 in; 62.1 mm
Diameter 1.63 in; 41.4 mm