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"Explain Like I'm 5": Audio Transformers – DIY Recording ...
https://www.diyrecordingequipment.com/blogs/news/explain-like-im-5-transformers#:~:text=Inductance%20is%20a%20measure%20of%20how%20well%20a,or%20a%20more%20permeable%20core%20material%20%28see%20below%29.
Inductance of an audio transformer? - DIYstompboxes.com
https://www.diystompboxes.com/smfforum/index.php?topic=109287.0
As a side note, it is common for audio transformers to spec themselves as not -3db, or -6db at the low end, but instead at the frequency of -1db or -0.5db response. These result in 2x and 4X the primary inductance needed for a given reflected secondary load. The numbers digi is measuring make sense for that.
Audio Transformer - Engineers Garage
https://www.engineersgarage.com/audio-transformer/
Audio transformers should preferably use both high-permeability cores and the largest number of coil turns to create high primary inductance. The most commonly used audio transformer core materials are M6 steel (a steel alloy containing 6% silicon) and 49% nickel or 84% nickel (alloys containing 49% or 84% nickel plus iron and molybdenum).
Audio Transformers
https://www.jensen-transformers.com/wp-content/uploads/2014/08/Audio-Transformers-Chapter.pdf
Audio transformers must utilize both high-permeability cores and the largest practical number of coil turns to create high primary inductance. Coil inductance increases as the square of the number of turns and in direct proportion to the permeability of the core and can be approximated using the formula: L = 3.2 N28 ì A / 10 R
"Explain Like I'm 5": Audio Transformers – DIY Recording ...
https://www.diyrecordingequipment.com/blogs/news/explain-like-im-5-transformers
Inductance is a measure of how well a component converts voltage into magnetic flux. We're concerned with inductance in audio transformers because higher inductance in the primary coil translates to better low-frequency response. Inductance can be increased with either more windings or a more permeable core material (see below).
AUDIO TRANSFORMER DESIGN FOR TUBE AMPLIFIER WITH …
http://www.standardsuniversity.org/wp-content/uploads/audio_transformer_design_tube_amplifier_pichkalyov_final_paper.pdf
Audio transformer is the primary part of a tube amplifier which generates an electromagnetic field. ... Based on the above, the inductance can be calculated: L = Req/2*pi*f1 where pi is 3.1415…, f1 is the lower frequency of the amplifier.
Rewinding Audio Coupling Transformers - WordPress.com
https://nzvrshome.files.wordpress.com/2018/10/rewinding-audio-coupling-transformers.pdf
Performance limitations Three parameters — inductance, leak- age inductance, and distributed capaci- — are of major importance in tance audio transformer design. Inductance, which governs low frequency response, is dependent on number of …
Power transformer inductances - diyAudio
https://www.diyaudio.com/community/threads/power-transformer-inductances.87841/
There is no absolute value for a transformer's inductance. It's value varies with both frequency and level at which it is measured. So modelling a transformer as coupled inductor will not give very accurate results. Might be no big deal if you just want to model a power supply but for signal transformers it's useless.
Transformers for Audio
https://sound-au.com/articles/audio-xfmrs.htm
The leakage inductance (L L) is effectively in series with the transformer. Although small, it tends to affect the high frequencies in particular, and is especially troublesome for audio output transformers. This is typically measured with …
Antique Radio Forums • View topic - 201A Audio Transformer ...
https://antiqueradios.com/forums/viewtopic.php?t=379823
In a class A audio output stage, apart from the impedance match, its helpful to have an output transformer with a combination of factors, such as a high primary inductance to assist the bass response, butt stacking with a thin spacer to avoid core saturation due to the DC current (primary Ampere-turns) and low range winding resistances.
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