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How many turns in an audio transformer? | All About Circuits
https://forum.allaboutcircuits.com/threads/how-many-turns-in-an-audio-transformer.91988/#:~:text=When%20used%20with%20the%20Radio%20Shack%20transformer%2C%20the,less%20detector%20loading%20and%2C%20therefore%2C%20greater%20audio%20output.
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
Radioshack Audio Output Transformer - TalkBass.com
https://www.talkbass.com/threads/radioshack-audio-output-transformer.841731/
the coolest thing maybe would be a diy wah pedal, I thought I remember seeing that, and looked for it because they gave the value of the primary in inductance for the shack transformer. so connecting the blue green wires would give you close to 500mH inductor. Check here scroll down to "Building a Wah from Scratch" for more info and pics
inductance of power & audio output transformers
https://www.antiqueradios.com/forums/viewtopic.php?t=120515
Just shows what we've been talkin' 'bout; audio transformers need lots of inductance for low freq response. A person could take apart a small cheap transformer like the kind Radio Shack used to sell (I had a couple form RS that I took apart that went bad after I screwed up ) and get the laminations apart and off and wind lots of 38awg or so on ...
Inductance of an audio transformer? - DIYstompboxes.com
https://www.diystompboxes.com/smfforum/index.php?topic=109287.0
You have to use the specified lowest frequency, not a midband 1kHz. The primary inductance of a transformer is the determiner of its low frequency response. For a given low frequency requirement F, the reflected secondary load of Rsr, the inductance must have an impedance Zl greater than Rsr at F, or: Zl = 2*pi*F*L = Rsr. which gives.
Chokes & Transformers - RadioShack
https://www.radioshack.com/collections/chokes-and-transformers
RadioShack Snap-Together Ferrite Choke Core $6.59. RadioShack Snap-On RF Choke with Ferrite Core $3.99. Snap-Together Toroid Choke Core (2-Pack) $6.60. Audio Output Transformer $4.40. Snap Choke Core (2-Pack) $3.85. RadioShack 100µH RF Choke $4.99–$14.99.
AUDIO TRANSFORMER DESIGN FOR TUBE AMPLIFIER WITH …
http://www.standardsuniversity.org/wp-content/uploads/audio_transformer_design_tube_amplifier_pichkalyov_final_paper.pdf
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. Output transformers are generally designed for frequencies between 20 Hz and 20 kHz which are audible to the human ear. We assumed f1 to be equal to 40 Hz. In experiments, transformers operating in
Audio Transformer - Engineers Garage
https://www.engineersgarage.com/audio-transformer/
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). Nickel alloys are substantially more expensive than steel but being high permeability materials require lesser number of turns.
How many turns in an audio transformer? | All About Circuits
https://forum.allaboutcircuits.com/threads/how-many-turns-in-an-audio-transformer.91988/
When used with the Radio Shack transformer, the transformed impedance of the 120-Ω phones was about 2.8 kΩ, as compared to the 1 to 1.5-kΩ impedance presented by the lower-impedance phones. The higher-impedance units caused less detector loading and, therefore, greater audio output.
Wanted: Audio transformer with winding of 8 ohm impendance
https://www.antiqueradios.com/forums/viewtopic.php?t=183261
The transformer transforms impedances; it doesn't have any itself (presuming it has sufficient inductance at the lowest frequency). If it transforms 8 ohms to 2000, it will just as well transform 4 ohms to 1000.
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