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The Hammond Manufacturing 808 is a broadcast audio transformer designed for microphone or mixer connections to single or push-pull grid inputs. It operates within a frequency range of 50 Hz to 15 kHz. The primary coil impedance is available in 50 ohms or 200 ohms configurations, while the secondary coil offers 600 ohms and 2.4 kohms options. Maximum DC current is rated at 600 uA. The unit features shielding and measures 44.5 mm in length, 31.8 mm in width, and 65 mm in height.
Verify the specific impedance configuration required for your circuit design, as the 808 model supports distinct primary (50/200 ohms) and secondary (600/2.4 kohms) options. Confirm that the maximum DC current rating of 600 uA aligns with your biasing requirements. Ensure the physical dimensions fit within your chassis layout, considering the shielded construction. Cross-reference the manufacturer part number with authorized distributor catalogs to ensure component authenticity and availability.
Select this component when interfacing low-impedance sources with high-impedance grid inputs in professional audio environments. The choice depends on matching the specific primary and secondary impedance values to the source and load characteristics. Consider the physical size constraints due to the shielded enclosure. Evaluate the frequency response range to ensure compatibility with the intended audio bandwidth requirements.
This component belongs to the Hammond 800 series of audio transformers. It is categorized under audio and signal transformers, specifically designed for broadcast applications. The product is manufactured by Hammond Manufacturing and is identified by the Mouser part number 546-808a.