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HAMMOND
UNIVERSAL
PUSH-PULL TUBE OUTPUT TRANSFORMERS
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Key Features of Hammond's Push-Pull Tube Output Transformers:
Designed for general purpose or replacement use in push-pull tube output circuits.
For single ended use, see Hammond's 125 SE series - optimized for single ended tube output circuits.
Frequency response: 150 Hz. - 15 Khz (+/- 1db max. ref. 1 Khz)
Open style with minimum 5" long primary leads, secondary solder lugs for convenient secondary connections.
Tables provided with each transformer listing 90 pre-calculated impedance ratios (see below)
Primary impedances from 1,200 to 25,000 Ohms.
Secondary impedances from 1.5 to 15 Ohms.
For smaller size units (less impedance options), see Hammond's 125H or 125J multiple impedance audio matching transformers.
| Please note that we have adjusted our prices on all of the Hammond Manufacturing products. On May 19th, 2008, Hammond adjusted the prices on all of their products for the 3rd time since the Radio Daze Catalog 306 was published. We held our pricing until this most recent increase. We feel that you will still find our new prices to be very competitive. |
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Radio Daze |
Price |
Audio |
Max. D.C. Bias (ma) |
Primary Inductance |
Wt. Lbs. |
| HX-125A | $30.90 | 3 | 25 | 14.94 H | 0.3 |
| HX-125B | $31.40 | 5 | 45 | 8.97 H | 0.4 |
| HX-125C | $26.50 | 8 | 60 | 5.60 H | 0.7 |
| HX-125D | $30.70 | 10 | 70 | 4.48 H | 1.1 |
| HX-125E | $34.30 | 15 | 80 | 2.99 H | 1.5 |
* Indicated weights do not include shipping box or packing materials
Mechanical Data:
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Schematic & Hook Up Data (HX-125A - HX-125E):
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Connect To |
VOICE COIL IMPEDANCE (OHMS) |
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1.5 |
2 |
3.2 |
4 |
6 |
8 |
12 |
15 |
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Primary Impedance, Total Winding, Blue to Brown, (Red, C.T.) |
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1-2 |
27000 | |||||||
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2-3 |
18000 | 24000 | ||||||
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3-4 |
16500 | 22000 | ||||||
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4-5 |
10000 | 13500 | 21600 | 27000 | ||||
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5-6 |
8500 | 11000 | 18000 | 22000 | ||||
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1-3 |
5400 | 7200 | 11500 | 15000 | 21600 | |||
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2-4 |
4200 | 5600 | 9000 | 11200 | 16800 | 22500 | ||
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3-5 |
3300 | 4400 | 7000 | 8800 | 13200 | 17600 | 26400 | |
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4-6 |
2400 | 3200 | 5100 | 6400 | 9600 | 12800 | 19200 | 24000 |
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1-4 |
2150 | 2900 | 4600 | 5800 | 8700 | 11600 | 17400 | 21500 |
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2-5 |
1550 | 2050 | 3300 | 4100 | 6150 | 8200 | 12300 | 15500 |
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3-6 |
1300 | 1700 | 2700 | 3400 | 5100 | 6800 | 10200 | 12800 |
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1-5 |
1400 | 2200 | 2800 | 4200 | 5600 | 8400 | 10200 | |
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2-6 |
1700 | 2100 | 3150 | 4200 | 6300 | 8000 | ||
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1-6 |
1200 | 1500 | 2300 | 3000 | 4500 | 5600 | ||
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