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| PartNumber | 1645 | 1645-12 | 1645-21L |
| Description | Audio & Signal Transformers Transformers Audio & Signal 30W 5K ct / 4-8-16 Push-Pull Tube Type | HAZARDOUS-DUTY HANDLAMP 12V 5014-3CORD& | COSMO .75" DIA SKIRTED KNOB |
| Manufacturer | Keystone Electronics | - | - |
| Product Category | Audio Transformers | - | - |
| Color | - | - | - |
| Material | Brass | - | - |
| Series | 1600 | - | - |
| Product | Audio | - | - |
| Type | Hex Standoff | - | - |
| Packaging | Bulk | - | - |
| Unit Weight | 4.500 lbs | - | - |
| Termination Style | Wire Leads | - | - |
| Height | 3.06 in | - | - |
| Length | 2.5 in | - | - |
| Width | 2.75 in | - | - |
| Impedance | 5kCT Primary, 4/8/16 Secondary | - | - |
| Mounting Type | Chassis Mount | - | - |
| Frequency Range | 30 Hz to 30 MHz | - | - |
| Features | - | - | - |
| Size Dimension | 95.25mm L x 63.50mm W | - | - |
| Current | - | - | - |
| Height Seated Max | 77.72mm | - | - |
| Gender | Male, Female | - | - |
| Shielding | Shielded | - | - |
| Diameter Outside | 0.250" (6.35mm) 1/4" Hex | - | - |
| Plating | Nickel | - | - |
| Length Overall | 1.750" (44.45mm) 1 3/4" | - | - |
| Insertion Loss | ±1dB | - | - |
| Diameter Inside | - | - | - |
| Transformer Type | Push-Pull Audiophile, Ultra-Linear - Tube Output | - | - |
| Threaded Unthreaded | Threaded | - | - |
| Screw Thread Size | #6-32 | - | - |
| Between Board Height | 1.500" (38.10mm) 1 1/2" | - | - |
| Product Type | Push-Pull Audiophile | - | - |
| Power Rating | 30 W | - | - |
| Application | Tube Output Push Pull | - | - |
| Primary Impedance | 5000 Ohm CT | - | - |
| Secondary Impedance | 16 Ohms | - | - |