Hammond Mfg. Co. Ltd., Electronics Division
www.hammondmfg.com
124B
TUBE DRIVER - INTERSTAGE TRANSFORMER
The minimum frequency range this transformer operates in is
150 Hz to 15 KHz.
Designed for general purpose or replacement use in single ended
or phase inverter tube driver circuits
Open style, 2 point mount with minimum 5” long leads
Core material 49% Nickel Steel laminations for better low end
response.
ELECTRICAL SPECIFICATIONS
Characteristic Typical
Input Impedance 10,000 Ω
Output Impedance 90,000 ΩCT
Output Power 5.0 Watts
DCR
Primary 405 Ω
Secondary 1525 Ω
Inductance @ 1.0 kHz, 1.0 V OC
Primary 28 H
Secondary 108 H
Leakage Inductance 0.11 H
Impedance @ 1.0 kHz, 1.0 V OC
Primary 175 kΩ
Secondary 675 kΩ
Frequency Response ±1db from 150Hz to 15KHz
Turns ratio 1:3
Dielectric Strength 500 Vrms
124B
5W 150Hz - 15kHz
MADE IN CANADA
GRN - BLK - GRN: 90000
Ω
RED - BLU: 10000
Ω
CT
GREEN
GREEN
PRIMARY
SECONDARY
BLUE
RED
10000
Ω
90000 CT
Ω
SCHEMATIC DIAGRAM
BLACK
