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Audio Transformers | Tube Audio Transformers

New items

A187A18C, OEP

OEP A187A17C/A187A18C Microphone Transformers A187A17C and A187A18C microphone transformers from OEP are ideal for impedance matching and signal splitting. Constructed with multiple electrostatic screens, these audio transformers are encapsulated in a mumetal screening can. A187A17C can be used in microphone inputs, matching 200 Ω to 600 Ω, while A187A18C can be used to match 200 Ω to 5 k Ω. 500 Vrms proof voltage, windings to screen 500 Vrms proof voltage, primary to secondary Screens earthed Note Do not pass DC through the windings.

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New items

A262A48E, OEP

OEP PCB Mounted Audio Matching Transformer 300Hz This range of 100 mW 300 Hz audio transformers from OEP feature electrostatic screening and are suitable for PCB mounting. They are ideal for use in low-power outputs and can be used for both microphone inputs and line inputs. A mumetal screening can is available for these audio transformers. See 210-6469 Note Do not pass DC through the windings.

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New items

K30A06C, OEP

OEP K30A06C Audio Input Transformers K30A06C audio input transformers from OEP feature multiple magnetic shields. Constructed with a mumetal screening can that reduces electrical noise up to 30db, these transformers are fitted with a stray flux copper band and electrostatic screens. These audio transformers are ideal for bridging input applications and offer a greater drive level capability. 108 pF interwinding capacitance at 20 kHz (for the primary windings in the series) 23 mH primary leakage inductance at 1 kHz, 0.1 V (for windings in the series) 119 H primary inductance at 100 Hz, 0.1 V

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New items

D29A100, OEP

100V Line Transformer These 100V line transformers are brought to your by OEP, and are designed to match loudspeakers to the 100V line output of PA amplifiers. The OEP range of 100V Line Transformers includes the following products: 210-6497 is a 2W Line Transformer for 8Ω speakers. 210-6504 is a 5W Line Transformer for 8Ω speaker. 210-6526 is a 10W Line Transformer for 8Ω speaker. 210-6532 is a universal type suitable for 4, 8 or 16Ω speakers and provided with taps to deliver 1, 2, 5, 15 or 30W. Warning These transformers are for 100V line matching; they are not suitable for other output matching situations.

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New items

Z30A23C, OEP

OEP Z30A23C Microphone Transformers Z30A23C audio transformers from OEP feature multiple magnetic shields. Constructed with a mumetal screening can that reduces electrical noise up to 30db, these transformers are fitted with a stray flux copper band and electrostatic screens. The primary inductance per winding is 750 mH @ 1 kHz, 0.1 V Leakage inductance for the primaries in parallel is 146 μH at 1khz, 0.1 V For the windings in series, the interwinding capacitance is 163 pF at 10khz Product Application Information These microphone matching transformers are ideal for signal splitting and impedance matching. Z30A23C audio transformers can also be used in reverse as a step down transformer.

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New items

Z1682E, OEP

OEP Z16 Series Audio Transformers The OEP Z16 range of audio transformers are constructed with an interwinding screen and centre tap. Various different impedance ratios are available, and these audio transformers can be used in reverse with the centre tap on the primary. Z16 audio transformers are low power and suitable for PCB mounting. Product Application Information Recommended applications for these audio transformers include ground loop isolating microphone inputs and impedance matching.

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New items

Z30A18C, OEP

OEP Z30A18C Audio Input Transformers Z30A18C audio transformers from OEP feature multiple magnetic shields. Constructed with a mumetal screening can that reduces electrical noise up to 30db, these transformers are fitted with a stray flux copper band and electrostatic screens. Z30A18C input transformers provide galvanic isolation. Leakage inductance for the primaries in series is 1.9 mH at 1 kHz, 0.1 V Interwinding capacitance for the windings in series is 100 pF at 10 kHz Common mode rejection ratio >60 dB @ 10 kHz Product Application Information These audio transformers can be used for general purpose applications such as line or microphone inputs. Other applications include ground loop isolation, low distortion lines and phono stage inputs.

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New items

Z1687E, OEP

OEP Z16 Series Audio Transformers The OEP Z16 range of audio transformers are constructed with an interwinding screen and centre tap. Various different impedance ratios are available, and these audio transformers can be used in reverse with the centre tap on the primary. Z16 audio transformers are low power and suitable for PCB mounting. Product Application Information Recommended applications for these audio transformers include ground loop isolating microphone inputs and impedance matching.

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New items

CUI30A02E, OEP

OEP CUI30 Series Audio Output Transformers CUI30 pro audio transformers from OEP feature a low profile, encapsulated construction. Suitable for PCB mounting, these transformers can be used as line output transformers or isolating transformers. CUI30A02E ( 123-7238 ) has been designed for 70 Ω and 600 Ω applications and CUI30A04E ( 123-7239 ) is for use in 150 Ω and 600 Ω applications.

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New items

Z1604, OEP

Miniature Open & Encapsulated AF Transformer Miniature PCB mounting audio frequency transformers suitable for isolating and impedance matching applications.,The open types are mounted by means of a clamp with spade feet which may be bent over when securing to a PCB. The enclosed type is fully encapsulated in a glass filled nylon case. Z1606 is encapsulated. Manufacturer Part No. Z1606 E187A E187B Z1604 Type Encapsulated Open Open Encapsulated Turns ratio 1:1 C.T. 1:1 C.T. 3·6:1+1 1:1 C.T. Primary Impedance 800Ω 800Ω 3kΩ 600Ω Secondary Impedance 800Ω C.T. 800Ω 250Ω + 250Ω 600Ω

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New items

TF021, OEP

Speaker Isolating, 3W Transformer A 1:1 ratio transformer suitable for isolating 3Ω speakers but giving good results up to 15Ω.

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New items

A187A14C, OEP

OEP A187A14C Microphone Transformers A187A14C microphone transformers from OEP are ideal for signal splitting and impedance matching. They are encapsulated in a mumetal can and constructed with multiple electrostatic screens. These audio transformers provide dual primary impedance for matching 150 Ω to 15 kΩ. 750 mH primary inductance at 1 kHz, 0.1v 44 pF interwinding capacitance at 20 kHz (primary 1 to screens) 64 pF interwinding capacitance at 20 kHz (primary 2 to screens) 109 pF interwinding capacitance at 20khz (secondary to screens) 12 pF interwinding capacitance at 20 kHz (primaries to secondary when primaries are in series) Note Do not pass DC through windings

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