Audio Transformers

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Turns Ratio - Primary:Secondary	Impedance - Primary (Ohms)	Impedance - Secondary (Ohms)	DC Resistance (DCR) - Primary	DC Resistance (DCR) - Secondary	Transformer Type	Frequency Range	Frequency Response	Voltage - Isolation	Insertion Loss	Return Loss	Power Level	Operating Temperature	Approval Agency	Mounting Type	Size / Dimension	Height - Seated (Max)	Termination Style

140M AUDIO XFMR 100K / 1.5K CHAS MNT Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	8:1	100k	1.5k	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads
140H AUDIO XFMR 10K / 40KCT CHAS MNT Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	1:2	10k	40kCT	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads
140K AUDIO XFMR 150 / 60K CHAS MNT Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	1:2	150	60k	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads
140N AUDIO XFMR 50 / 1.5K CHAS MNT Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	1:5:5	50	1.5k	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads
140P XFMR 600 150/150 / 2.4K, 600/600 Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	1:2	600, 150/150	2.4k, 600/600	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads
140B AUDIO XFMR 30 / 60K CHAS MNT Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	1:45	30	60k	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads
140Q AUDIO XFMR 600CT / 600CT CHAS MT Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	1:1	600CT	600CT	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads
140A AUDIO XFMR 4 / 60K CHAS MNT Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	1:122	4	60k	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads
140C AUDIO XFMR 50 / 60K CHAS MNT Hammond Manufacturing	0 In Stock	Obsolete	140	Bulk	Obsolete	1:34:5	50	60k	-	-	Shielded	70Hz ~ 11kHz	±1dB	-	-	-	-	-	-	Chassis Mount	1.250" Dia (31.75mm)	1.000" (25.40mm)	Wire Leads

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Audio Transformers

Like most other transformer products, audio transformers consist of two or more magnetically coupled coils of wire, usually wound around a magnetic core. They are distinguished from other transformer types by being adapted and characterized for use at frequencies across all or a significant portion of the human audible range spanning roughly 20 Hz to 20 kHz, and are used for isolation and transformation of information in analog format, as contrasted with transformers designed for transmission of information encoded using a digital signaling protocol. Examples include output transformers for vacuum tube amplifiers and voice coupling transformers for traditional telecom applications.