124

Tube Driver - Interstage 124 Series

Features:
Designed for general purpose or replacement use in push-pull or phase inverter tube driver circuits.
Should not be used for single ended applications. They have no gap for DC bias current present in SE mode.
Open style with minimum 5" long primary leads.
Minimum frequency response 150 Hz. - 15 Khz (+/- 1db max. ref. 1 Khz.) at full rated power.
Our part number 124B is the same as our 124A except for 49% Nickel laminations for greater fidelity.
Our part number 124C (below) is the COIL ONLY (for those experimenters who want to use their own "iron").
If you are looking to replace Radiola III-A audio transformers, check out our universal radiola replacement unit.

Hookup Data:
For Parallel connected operation (33.8K Ohm Secondary):
Connect the GRN/YEL wire to the GRN wire AND the BLK/YEL wire to the BLK wire.

For Series connected operation (135K Ohm Secondary):
Connect the BLK/YEL wire to the GRN (this becomes the center tap) - GRN/YEL and BLK wires are the output.

Product Description Manufacturer Availability Price Add to Cart form
124f

Enclosures

RoHS Compliant

Spec Sheet

Hammond 124F AUDIO TX TUBE DRIVER [...]

Hammond Mfg.

Series 124

Available Stock: 10
Available Drop-Ship: 10
Lead Time (Days): 28
1 - 1 $41.50
2 - 3 $40.90
4 - 9 $40.20
...
10 - 14 $39.70
15 - 49 $39.10
50 - 74 $38.60
75 - 199 $38.20
200 - 499 $37.70
500 -       $36.90

Min: 1 Mult: 1

124a

Enclosures

RoHS Compliant

Spec Sheet

Hammond 124A AUDIO TX transformer [...]

Hammond Mfg.

Series 124

Available Stock: 9
Available Drop-Ship: 8
Lead Time (Days): 28
1 - 1 $23.70
2 - 3 $23.30
4 - 9 $23.00
...
10 - 14 $22.60
15 - 24 $22.30
25 - 49 $22.00
50 - 124 $21.70
125 - 249 $21.40
250 -       $21.20

Min: 1 Mult: 1

124e

Enclosures

RoHS Compliant

Spec Sheet

Hammond 124E AUDIO TX TUBE DRIVER [...]

Hammond Mfg.

Series 124

Available Stock: 15
Available Drop-Ship: 15
Lead Time (Days): 28
1 - 2 $39.80
3 - 4 $39.20
5 - 9 $38.60
...
10 - 14 $38.00
15 - 49 $37.50
50 - 74 $37.00
75 - 199 $36.60
200 - 499 $36.20
500 -       $35.30

Min: 1 Mult: 1

124d

Enclosures

RoHS Compliant

Spec Sheet

Hammond 124D AUDIO TX TUBE DRIVER [...]

Hammond Mfg.

Series 124

Available Stock: 5
Available Drop-Ship: 5
Lead Time (Days): 28
1 - 2 $32.90
3 - 4 $32.40
5 - 9 $31.90
...
10 - 24 $31.50
25 - 49 $31.00
50 - 99 $30.60
100 - 199 $30.30
200 - 499 $29.90
500 -       $29.20

Min: 1 Mult: 1

124c

Enclosures

RoHS Compliant

Spec Sheet

Hammond 124C AUDIO TX transformer [...]

Hammond Mfg.

Series 124

Available Stock: 4
Available Drop-Ship: 4
Lead Time (Days): 28
1 - 1 $18.10
2 - 4 $17.80
5 - 9 $17.60
...
10 - 14 $17.30
15 - 49 $17.00
50 - 74 $16.80
75 - 199 $16.60
200 - 499 $16.40
500 -       $16.20

Min: 1 Mult: 1

124b

Enclosures

RoHS Compliant

Spec Sheet

Hammond 124B AUDIO TX transformer [...]

Hammond Mfg.

Series 124

Available Stock: 15
Available Drop-Ship: 15
Lead Time (Days): 28
1 - 1 $41.10
2 - 3 $40.50
4 - 9 $39.90
...
10 - 14 $39.30
15 - 49 $38.80
50 - 74 $38.30
75 - 199 $37.80
200 - 499 $37.40
500 -       $36.60

Min: 1 Mult: 1

Part No. Audio Primary Secondary Laminations Dimensions
Impedance D.C. Impedance D.C. Winding
Resistance Resistance A B C D G
Watts (Ohms) (Ohms) (Ohms) (Ohms) Mtg Hole
124A 5 10K 403 90K C.T. 1524 C.T. Grain Oriented Steel 2.38 1.35 1.43 2.00 0.19
124B 5 10K 403 90K C.T. 1500 C.T. 49% Nickel 2.38 1.35 1.43 2.00 0.19
124C 5 10K 403 90K C.T. 1524 C.T. None-Coil Only - - - - -
124D 5 7K C.T. 454 15.8K C.T. 681 C.T. Grain Oriented Steel 2.81 1.46 1.68 2.38 0.19
124E 5 15K C.T. 728 33.8K/135K 3880 Dual Grain Oriented Steel 2.88 1.74 2.37 2.38 0.19
124F 5 15K C.T. 900 3.75K / 15K 899.6 Dual Grain Oriented Steel 2.88 1.75 2.37 2.38 0.19