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Audio transformer 47k pri 600R sec (DIB-110)
https://www.esr.co.uk/shop/contents/en-uk/p33684_Audio_transformer_47k_pri_600R_sec_(DIB-110).html
DIB-110 PCB mounting microphone matching transformer with 10:1 ratio. Allows for high impedance un-balanced microphones to connect with low impedance …
JensenThe Worlds Finest Audio Transformers
https://www.jensen-transformers.com/wp-content/uploads/2014/07/SUB-2RR.pdf
Inside, a specially designed Jensen audio transformer with extended sub- ... Input impedance, Zi 100 Hz, -10 dBV, test circuit 1 39.0 kΩ 39.4 kΩ 39.8 kΩ ... OUT Z o 47k 600 OUT 47k 600 IMPORTANT NOTE: THIS PRODUCT IS NOT INTENDED FOR USE IN CIRCUMSTANCES WHERE THE DC OR PEAK AC VOLTAGE
Audio & Impedance Matching Transformers | Markertek
https://www.markertek.com/category/audio-level-matching
Audio Level & Impedance Matching Transformers create compatible signals between microphones, line-level devices, laptops, digital 75 ohm and 110 ohm AES/EBU devices. For example, Audio Level Matchers allow you to connect a professional studio microphone to a computer or other "consumer" style recording device.
Moving Coil Step Up Guide – K & K Audio
http://www.kandkaudio.com/applications-guide/
Because the gain we chose was 10, we have an impedance transformation of 10 squared, or 100. So, the cartridge “sees” the 47K load resistor at the input to the preamp through the transformer as being 470 ohms, which is arrived at by dividing the …
Audio Transformers
https://www.jensen-transformers.com/wp-content/uploads/2014/08/Audio-Transformers-Chapter.pdf
Bill Whitlock Audio Transformers Page 3 Handbook for Sound Engineers, 3rd Edition Figure 5 - Excitation Current Figure 6 - Cancellation of Flux Generated by Load Current Figure 7 - Excitation Current and Flux Vary Inversely with Frequency primary, its …
Chapter 5: Understanding Impedance In Audio Transformers
http://www.lundahl.se/wp-content/uploads/datasheets/PSW_WhitePaper_Download_Chapter_5.pdf
As mentioned above, all audio input and output circuits, all loudspeakers, all microphones, and all transformers use impedance as a measurement of electrical value. This is because they are AC devices, not simple DC circuits. But among AC circuits, only transformers (and their first cousins autoformers) possess the unique property to
Output Transformer Impedance
https://www.radioremembered.org/outimp.htm
The function of the audio output transformer is to transform the high impedance of the output tube to match the much lower impedance of the speaker. This is necessary to get an efficient transfer of the audio signal to the speaker. The output transformer as an impedance matching device, works on the principal of reflected load.
Understanding Impedance - Sound on Sound
https://www.soundonsound.com/techniques/understanding-impedance
The transformer does this by 'reflecting' the loudspeaker's impedance through the transformer (as a function of the square of its turns ratio) to create a different (in this application, higher) load impedance for the valve output stage. Thus a 15Ω speaker will appear to …
MM Phono Input impedance change 47k to 100k ohms
https://forum.audiogon.com/discussions/mm-phono-input-impedance-change-47k-to-100k-ohms
Most phono stages I have ever seen will use a 47K resistor between hot and ground to set the input impedance. Since the grid of the tube or the gate of a transistor have a very high impedance, in the megohm range, 47K will become the dominant value at all audio frequencies. Likewise if you change to 100K.
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