What are the functions of input transformers?
- Signal isolation / equipment isolation
- Eliminate ground loop
- Conversion - SE to balance, balance to SE
- Impedance matching
- Step-up / step-down
- Etc
- These are used transformers. Outlook will not be perfect.
- Measurements are just for reference - quick test only from the seller.
- Buyers are to research the items properly before making purchase.
- Limited stocks - kindly book early.
UTC A-22 (1pr only)
- 500R : 500R
- 40Hz - 20kHz
- Square metal shield, 38x38x50mm, weight ~270g/pc
- U$300/pair
UTC A-20 (1pr only)
- 500R : 500R
- 10Hz - 50kHz (excellent)
- Square metal shield, 38x38x50mm, weight ~270g
- U$400/pair (reserved)
Tamradio (Tamura) HT5-004901-003
- 600R : 500R
- Primary DCR ~57R, primary inductance ~60H
- Secondary DCR ~44R, secondary inductance ~60H
- Measured frequency response ~10Hz - 30kHz +/- 0.2dB
- 52x33x50mm, weight 0.7KG/pair
- U$100/pair
Tamradio HG3-1255-01 HYB-75-380U
- 75R : 380R
- 35x25x45mm
- Weight ~0.1KG/pc
- U$80/pair
Tamradio
- 75R : 600R
- Copper plated iron case, double shielded
- 30x23x18mm
- U$80/pair
Nihon Kohden TF-3
- 600R / 200R : 600 (150R + 150R)
- Can be used to unbalance to balance conversion
- 52x50x34mm
- Measured response ~10Hz - 36kHz -0.4dB, 20Hz - 20kHz -0.1dB
- U$120/pair
Nihon Kohden SEC M13178
- 75R : 600R
- 75x43x70
- Weight ~0.8KG/pair
- U$120/pair
German made CGT
- 500R : 600R
- 2 input windings and 2 output windings
- Primary inductance, in series ~8-9H, DCR ~12R
- Secondary inductance, in series ~7-7.5H, DCR ~6.5R
- 110x40x110mm, 2.4KG/pair
- Quick measurement 20Hz ~50kHz -0.5dB, 50Hz - 30kHz -0.3dB
- U$180/pair
12/19/2015
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