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

807 XFMR 30, 7.5/7.5 / 2.4K, 600/600 Hammond Manufacturing	0 In Stock 4 Factory	Obsolete	800	Bulk	Obsolete	-	30, 7.5/7.5	2.4k, 600/600	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
801 XFMR 200 50/50 / 200 50/50 CHAS Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	200, 50/50	200, 50/50	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
834 XFMR 20K 5K/5K / 40K 10K/10K Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	1:4	20k, 5k/5k	40k, 10k/10k	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
832 XFMR 20K 5K/5K / 80K, 20K/20K Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	1:2	20k, 5k/5k	80k, 20k/20k	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
809 XFMR 200 50/50 / 2.4K, 600/600 Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	200, 50/50	2.4k, 600/600	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
812 XFMR 500 125/125 / 40K 10K/10K Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	500, 125/125	40k, 10k/10k	3.11Ohm	1.432kOhm	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	750V	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
804 XFMR 500 125/125 / 500 125/125 Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	500, 125/125	500, 125/125	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
802 XFMR 200 50/50 / 600 150/150 Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	200, 50/50	600, 150/150	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
808 XFMR 200 50/50 / 40K 10K/10K Hammond Manufacturing	0 In Stock	Active	800	Bulk	Active	-	200, 50/50	40k, 10k/10k	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
835 XFMR 40K 10K/10K / 40K 10K/10K Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	1:1	40k, 10k/10k	40k, 10k/10k	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
841 XFMR 20K 5K/5K / 200 50/50 CHAS Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	20k, 5k/5k	200, 50/50	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	20dB Max	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
844 XFMR 40K 10K/10K / 500 125/125 Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	40k, 10k/10k	500, 125/125	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	20dB Max	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
842 XFMR 20K 5K/5K / 500 125/125 Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	20k, 5k/5k	500, 125/125	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	20dB Max	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
813 XFMR 600 150/150 / 2.4K, 600/600 Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	600, 150/150	2.4k, 600/600	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug
806 XFMR 30, 7.5/7.5 / 40K 10K/10K Hammond Manufacturing	0 In Stock	Obsolete	800	Bulk	Obsolete	-	30, 7.5/7.5	40k, 10k/10k	-	-	Broadcast Quality	50Hz ~ 15kHz	±0.5dB	-	1dB	-	15dB	-	-	Chassis Mount	1.752" L x 1.252" W (44.50mm x 31.80mm)	2.559" (65.00mm)	Solder Lug

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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.