Hammond Manufacturing 806 Audio Transformer Equivalent & Substitute Parts

Part Overview

The Hammond Manufacturing 806 is a broadcast quality audio transformer designed for chassis mount applications. It features dual primary impedance configurations (30, 7.5/7.5 ohms) and dual secondary impedance configurations (40k, 10k/10k ohms) with a frequency response of ±0.5dB across the 50Hz to 15kHz audio band. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new designs requiring equivalent performance characteristics.

Substiute Parts

806

Hammond ManufacturingIn Stock: 826806 Datasheet

Current PartRFQ

806A

Hammond ManufacturingIn Stock: 973806A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Hammond 806 is determined by the following critical parameters:

• Impedance Configuration: Primary impedance of 30, 7.5/7.5 ohms and secondary impedance of 40k, 10k/10k ohms
• Transformer Type: Broadcast quality classification
• Frequency Response: ±0.5dB across 50Hz to 15kHz audio band
• Insertion Loss: 1dB maximum
• Power Level: 15dB
• Mounting Type: Chassis mount configuration
• Compliance: ROHS3 compliant, REACH unaffected

The Hammond 806A qualifies as a substitute based on matching impedance values (with primary and secondary impedances reversed in designation order), identical frequency response characteristics, matching insertion loss specification, and equivalent broadcast quality transformer classification. Both parts maintain the same frequency range, power level, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The Hammond 806A is the designated substitute for the obsolete Hammond 806. Both parts maintain identical electrical performance specifications including frequency response, insertion loss, and power level ratings. The 806A is currently in active production status, ensuring availability for replacement and new applications.

Physical dimensions are equivalent within manufacturing tolerances (0.002" variance in length and width, 0.001" variance in height). The primary distinction is termination style: the 806 uses solder lugs while the 806A uses wire leads. This difference requires circuit board layout and connection methodology adjustment but does not affect electrical performance or compatibility with broadcast quality audio transformer applications.

Both parts carry ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 806A directly replace the Hammond 806 in existing designs?

A: Electrical substitution is valid based on matching impedance configurations, frequency response, and power level specifications. Physical installation requires accommodation for the termination style difference: wire leads (806A) versus solder lugs (806). Mounting dimensions are equivalent within standard tolerances.

Q: What is the significance of the impedance designation order difference between the 806 and 806A?

A: The 806 lists primary impedance as 30, 7.5/7.5 ohms and secondary as 40k, 10k/10k ohms. The 806A lists primary as 7.5, 30 ohms and secondary as 10k, 40k ohms. Both parts provide identical impedance values; the designation order reflects different circuit configuration conventions but does not affect substitution eligibility when impedance matching is confirmed for the specific application.

Q: Are there compliance or certification differences between these parts?

A: Both the Hammond 806 and 806A maintain ROHS3 compliance and REACH unaffected status. No compliance or certification differences exist between the parts.

Q: What packaging differences exist between the 806 and 806A?

A: The Hammond 806 is packaged as individual units with solder lug termination. The Hammond 806A is available in bulk packaging with wire lead termination. Packaging format does not affect electrical performance or substitution validity.

Q: Why is the Hammond 806 listed as obsolete?

A: The Hammond 806 has been discontinued by the manufacturer. The Hammond 806A, available in active production status, provides equivalent electrical performance and serves as the current production alternative for this transformer category.