What are Audio Transformers ?
Audio Transformers are specialized components designed to transfer audio signals between different circuits while minimizing signal loss and distortion. They are commonly used in applications such as production electronics assembly and maintenance. Important specifications for selection include Frequency Range, which affects the audio quality; Impedance, which ensures compatibility with other components; and DC Resistance (DCR), which influences power efficiency. Validating these specifications is crucial for ensuring optimal performance in audio applications.
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| Part & Mfr | Total Stock | Pricing & RFQ | Approval Agency | DC Resistance (DCR) | Frequency Range | Frequency Response | Height | Impedance | Insertion Loss | Mounting Type | Operating Temperature | Power Level | Return Loss | Size | Termination Style | Transformer Type | Turns Ratio | Voltage | |
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Hammond Manufacturing
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- | 22.5Ohm | - | - | 2.058" (52.27mm) | - | - | Chassis Mount | - | - | - | 3.250" L x 2.360" W (82.55mm x 59.94mm) | Wire Leads | - | - | 120/240VAC | |
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Hammond Manufacturing
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- | 73.2Ohm, 74.41Ohm, 147.4Ohm | 50Hz ~ 12kHz | ±1dB | 2.525" (64.14mm) | 6kCT | - | Chassis Mount | - | 30W | - | 3.000" L x 2.465" W (76.20mm x 62.61mm) | Solder Lug | - | - | 2500V @ 1 Second | |
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Hammond Manufacturing
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- | 241.7 Ohm | 100Hz ~ 15kHz | ±1dB | 1.690" (42.93mm) | 2.5k ~ 10k | - | Chassis Mount | - | 3W | - | 2.810" L x 1.350" W (71.37mm x 34.29mm) | Wire Leads | General Purpose | - | 1500V @ 1 Second | |
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Hammond Manufacturing
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- | 373Ohm, 355Ohm | 150Hz ~ 15kHz | ±1dB | 2.370" (60.20mm) | 7kCT, 15k | - | Chassis Mount | - | 5W | - | 2.880" L x 1.740" W (73.15mm x 44.20mm) | Wire Leads | Tube Driver and Speaker Matching | 1:2.97, 1:5.94 | 500Vrms | |
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Hammond Manufacturing
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- | 72.4Ohm | 20Hz ~ 20kHz | ±1dB | 1.000" (25.40mm) | 600CT | 1.1dB Typ | Chassis Mount | - | 10dB | 20dB Typ | 1.250" Dia (31.75mm) | Screw Terminal | - | 1:1 | 500Vrms | |
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Hammond Manufacturing
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- | 405Ohm | 150Hz ~ 15kHz | ±1dB | 1.430" (36.32mm) | 10k | - | Chassis Mount | - | 5W | - | 2.380" L x 1.350" W (60.45mm x 34.29mm) | Wire Leads | Tube Driver and Speaker Matching | 1:3 | 500Vrms | |
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Hammond Manufacturing
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Hammond Manufacturing
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- | 100.5Ohm | 100Hz ~ 15kHz | ±1dB | 2.940" (74.68mm) | 2.5k ~ 10k | - | Chassis Mount | - | 15W | - | 4.500" L x 2.360" W (114.30mm x 59.94mm) | Wire Leads | General Purpose | - | 1500V @ 1 Second | |
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Hammond Manufacturing
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- | 185Ohm | 70Hz ~ 15kHz | ±1dB | 2.630" (66.80mm) | 4kCT | - | Chassis Mount | - | 35W | - | 4.076" L x 3.170" W (103.53mm x 80.52mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 31.11:1 | - | |
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Hammond Manufacturing
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- | 347.8Ohm | 70Hz ~ 15kHz | ±1dB | 2.371" (60.22mm) | 6.6kCT | - | Chassis Mount | - | 20W | - | 3.710" L x 2.400" W (94.23mm x 60.96mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 40.62:1, 28.72:1, 20.31:1 | - | |
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Hammond Manufacturing
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- | - | 50Hz ~ 10kHz | - | 3.060" (77.72mm) | 16, 8 | - | Chassis Mount | - | 60W | - | 3.250" L x 2.500" W (82.55mm x 63.50mm) | Wire Leads | Sound Distribution | - | 25V, 70V | |
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Hammond Manufacturing
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- | - | 30Hz ~ 15kHz | ±1dB | 0.850" (21.59mm) | 40k, 10k/10k | 1dB Max | Through Hole | - | - | - | 1.330" L x 1.640" W (33.78mm x 41.66mm) | PC Pin | Broadcast Quality | - | - | |
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Hammond Manufacturing
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- | - | 30Hz ~ 30kHz | ±1dB | 0.850" (21.59mm) | 600, 150/150 | 1dB Max | Through Hole | - | - | - | 1.330" L x 1.640" W (33.78mm x 41.66mm) | PC Pin | Broadcast Quality | - | - | |
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Hammond Manufacturing
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- | - | 30Hz ~ 30kHz | ±1dB | 0.850" (21.59mm) | 48, 12/12 | 1dB Max | Through Hole | - | - | - | 1.330" L x 1.640" W (33.78mm x 41.66mm) | PC Pin | Broadcast Quality | - | - | |
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Hammond Manufacturing
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- | - | 30Hz ~ 30kHz | ±1dB | 0.850" (21.59mm) | 200, 50/50 | 1dB Max | Through Hole | - | - | - | 1.330" L x 1.640" W (33.78mm x 41.66mm) | PC Pin | Broadcast Quality | - | - | |
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CLASSIC
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Hammond Manufacturing
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- | 115Ohm | 100Hz ~ 15kHz | ±1dB | 2.630" (66.80mm) | 2.5k ~ 10k | - | Chassis Mount | - | 10W | - | 4.000" L x 2.100" W (101.60mm x 53.34mm) | Wire Leads | General Purpose | - | 1500V @ 1 Second | |
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Hammond Manufacturing
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- | 185Ohm | 70Hz ~ 15kHz | ±1dB | 3.513" (89.23mm) | 4kCT | - | Chassis Mount | - | 35W | - | 4.076" L x 3.170" W (103.53mm x 80.52mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 31.11:1 | - | |
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Hammond Manufacturing
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- | - | 50Hz ~ 10kHz | - | 3.810" (96.77mm) | 16, 8 | - | Chassis Mount | - | 100W | - | 3.500" L x 3.130" W (88.90mm x 79.50mm) | Wire Leads | Sound Distribution | - | 70V | |
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Hammond Manufacturing
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- | 82Ohm, 108.3Ohm | 70Hz ~ 15kHz | ±1dB | 3.319" (84.30mm) | 4.25kCT | - | Chassis Mount | - | 40W | - | 2.500" L x 3.150" W (63.50mm x 80.01mm) | Wire Leads | - | - | 2000V @ 1 Second | |
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Tamura
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- | 1kOhm | 300Hz ~ 100kHz | ±2dB | 0.465" (11.80mm) | 10kCT | - | Through Hole | -20°C ~ 85°C | 40mW | - | 0.409" L x 0.310" W (10.40mm x 7.87mm) | PC Pin | Data/Voice Coupling | 2.23:1 | 500VRMS @ 30 Seconds | |
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Hammond Manufacturing
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- | 46.48Ohm, 51.04Ohm | 70Hz ~ 15kHz | ±1dB | 3.523" (89.48mm) | 4.2kCT | - | Chassis Mount | - | 60W | - | 4.050" L x 3.050" W (102.87mm x 77.47mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 31.16:1 | - | |
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Hammond Manufacturing
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- | 43.16Ohm, 46.28Ohm | 70Hz ~ 15kHz | ±1dB | 3.516" (89.31mm) | 4kCT | - | Chassis Mount | - | 50W | - | 4.063" L x 3.125" W (103.20mm x 79.38mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 44.67:1 | - | |
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Hammond Manufacturing
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- | 45.53Ohm, 49.09Ohm | 70Hz ~ 15kHz | ±1dB | 3.563" (90.50mm) | 4.15kCT | - | Chassis Mount | - | 50W | - | 4.050" L x 3.136" W (102.87mm x 79.65mm) | Wire Leads | - | - | 2000V @ 1 Second | |
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Hammond Manufacturing
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- | 289Ohm | 70Hz ~ 15kHz | ±1dB | 3.123" (79.32mm) | 6.2kCT | - | Chassis Mount | - | 15W | - | 2.500" L x 3.328" W (63.50mm x 84.53mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 27.87:1 | - | |
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Hammond Manufacturing
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- | - | 100Hz ~ 15kHz | ±1dB | 3.150" (80.01mm) | 2.5k ~ 10k | - | Chassis Mount | - | 20W | - | 3.760" L x 2.520" W (95.50mm x 64.01mm) | Solder Lug | General Purpose | - | - | |
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Hammond Manufacturing
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- | 41.74Ohm, 3.14Ohm | 70Hz ~ 15kHz | ±1dB | 3.800" (96.52mm) | 3.2kCT | - | Chassis Mount | - | 50W | - | 3.125" L x 3.350" W (79.38mm x 85.09mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 14.30:1 | - | |
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Hammond Manufacturing
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- | 1.18Ohm | - | - | 4.188" (106.38mm) | - | - | Chassis Mount | - | - | - | 3.438" L x 4.300" W (87.33mm x 109.22mm) | Wire Leads | - | - | 120/240VAC | |
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SUMIDA CORP
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- | 250mOhm | - | - | 0.138" (3.50mm) | - | - | Surface Mount | -40°C ~ 125°C | - | - | 0.280" L x 0.205" W (7.10mm x 5.20mm) | Gull Wing | - | - | 3750Vrms | |
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Hammond Manufacturing
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- | 41.3Ohm, 40.5Ohm, 81.8Ohm | 50Hz ~ 12kHz | ±1dB | 3.188" (80.98mm) | 3.4kCT | - | Chassis Mount | - | 50W | - | 3.750" L x 3.090" W (95.25mm x 78.49mm) | Solder Lug | Push-Pull Audiophile, Ultra-Linear - Tube Output | 14.24:1 | - | |
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Hammond Manufacturing
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- | 11.4Ohm | 70Hz ~ 15kHz | ±1dB | 3.563" (90.50mm) | 2kCT | - | Chassis Mount | - | 100W | - | 4.063" L x 3.450" W (103.20mm x 87.63mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 22.35:1 | - | |
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Hammond Manufacturing
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- | 11.4Ohm | 70Hz ~ 15kHz | ±1dB | 3.563" (90.50mm) | 2kCT | - | Chassis Mount | - | 100W | - | 4.050" L x 3.465" W (102.87mm x 88.01mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 22.35:1 | - | |
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Tamura
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- | 70Ohm | 300Hz ~ 100kHz | ±2dB | 0.465" (11.80mm) | 600CT | - | Through Hole | -20°C ~ 85°C | 50mW | - | 0.409" L x 0.310" W (10.40mm x 7.87mm) | PC Pin | Data/Voice Coupling | 1:1 | 1000VRMS @ 30 Seconds | |
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Hammond Manufacturing
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- | 102.2Ohm, 114.3Ohm | 30Hz ~ 30kHz | ±1dB | 3.060" (77.72mm) | 10kCT | - | Chassis Mount | - | 10W | - | 2.750" L x 2.500" W (69.85mm x 63.50mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | - | 2000V @ 1 Second | |
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Hammond Manufacturing
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- | 81.61Ohm, 78.63Ohm | 50Hz ~ 12kHz | ±1dB | 3.813" (96.85mm) | 7.371kCT | - | Chassis Mount | - | 50W | - | 3.125" L x 3.280" W (79.38mm x 83.31mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 21.46:1 | - | |
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Hammond Manufacturing
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- | 8.054Ohm, 9.752Ohm | - | - | 2.876" (73.05mm) | - | - | Chassis Mount | - | - | - | 3.375" L x 2.385" W (85.73mm x 60.58mm) | Solder Lug | - | - | 120/240VAC | |
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Hammond Manufacturing
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- | 50Ohm | 100Hz ~ 15kHz | ±1dB | 3.460" (87.88mm) | 2.5k ~ 10k | - | Chassis Mount | - | 25W | - | 4.150" L x 2.880" W (105.41mm x 73.15mm) | Solder Lug | General Purpose | - | 2000V @ 1 Second | |
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Hammond Manufacturing
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- | 65.4Ohm, 74.6Ohm | 30Hz ~ 30kHz | ±1dB | 3.060" (77.72mm) | 6.6kCT | ±1dB | Chassis Mount | - | 20W | - | 3.500" L x 2.500" W (88.90mm x 63.50mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | - | 2000V @ 1 Second | |
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Hammond Manufacturing
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- | 54Ohm, 60Ohm | 70Hz ~ 15kHz | ±1dB | 3.863" (98.12mm) | 4kCT | - | Chassis Mount | - | 30W | - | 3.125" L x 3.810" W (79.38mm x 96.77mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 15.86:1 | - | |
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Hammond Manufacturing
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- | 210Ohm | 30Hz ~ 30kHz | ±1dB | 3.060" (77.72mm) | 7.6kCT | ±1dB | Chassis Mount | - | 25W | - | 3.500" L x 2.500" W (88.90mm x 63.50mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | - | 2000V @ 1 Second | |
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Hammond Manufacturing
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- | 1.52Ohm | - | - | 3.858" (97.99mm) | - | - | Chassis Mount | - | - | - | 4.125" L x 3.985" W (104.77mm x 101.22mm) | Wire Leads | - | - | 120/240VAC | |
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Hammond Manufacturing
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- | 27Ohm | 20Hz ~ 20kHz | ±0.5dB | 1.650" (41.90mm) | 200, 50/50 | 1dB | Chassis Mount | - | 15dB | - | 1.700" L x 1.200" W (43.18mm x 30.48mm) | Wire Leads | - | - | - | |
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Hammond Manufacturing
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- | 71Ohm | 20Hz ~ 20kHz | ±0.5dB | 1.650" (41.90mm) | 600, 150/150 | 1dB | Chassis Mount | - | 15dB | - | 1.700" L x 1.200" W (43.18mm x 30.48mm) | Wire Leads | - | - | - | |
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Hammond Manufacturing
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- | 2.24kOhm | 20Hz ~ 20kHz | ±0.5dB | 1.650" (41.90mm) | 20k, 5k/5k | 1dB | Chassis Mount | - | 15dB | - | 1.700" L x 1.200" W (43.18mm x 30.48mm) | Wire Leads | - | - | - | |
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Hammond Manufacturing
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- | 65Ohm | 20Hz ~ 20kHz | ±0.5dB | 1.650" (41.90mm) | 600, 150/150 | 1dB | Chassis Mount | - | 15dB | - | 1.700" L x 1.200" W (43.18mm x 30.48mm) | Wire Leads | - | - | - | |
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Hammond Manufacturing
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- | 4.89kOhm | 20Hz ~ 20kHz | ±0.5dB | 1.650" (41.90mm) | 40k, 10k/10k | 1dB | Chassis Mount | - | 15dB | - | 1.700" L x 1.200" W (43.18mm x 30.48mm) | Wire Leads | - | - | - | |
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Hammond Manufacturing
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- | 5.03Ohm, 12.3Ohm, 7.16Ohm | 50Hz ~ 12kHz | ±1dB | 3.238" (85.25mm) | 2kCT | - | Chassis Mount | - | 100W | - | 3.786" L x 4.049" W (96.16mm x 102.84mm) | Solder Lug | Push-Pull Audiophile, Ultra-Linear - Tube Output | 10.14:1 | - | |
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Hammond Manufacturing
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- | 138Ohm | 70Hz ~ 15kHz | ±1dB | 3.843" (97.61mm) | 4kCT | - | Chassis Mount | - | 30W | - | 3.125" L x 3.325" W (79.38mm x 84.46mm) | Wire Leads | Push-Pull Audiophile, Ultra-Linear - Tube Output | 15.93:1 | - | |
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Triad Magnetics
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- | 750Ohm | 200Hz ~ 15kHz | ±2dB | 0.740" (18.80mm) | 10kCT | 1.5dB | Through Hole | -20°C ~ 85°C | 100mW | 26dB | 0.812" L x 0.700" W (20.62mm x 17.78mm) | PC Pin | Data/Voice Coupling | 2.24:1 | 1500V | |
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Tamura
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UL60950 | 59Ohm | 200Hz ~ 4kHz | ±0.5dB | 0.472" (12.00mm) | 600 | 1.5dB Max @ 1kHz | Through Hole | - | - | 14dB Min @ 200Hz ~ 4kHz | 0.591" L x 0.571" W (15.00mm x 14.50mm) | PC Pin | Data/Voice Coupling | 1:1 | 1875VRMS @ 1 Second |
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