Air Core Audio Transformer

Air Core Transformer | Electrical4U

https://www.electrical4u.com/air-core-transformer/

How to design an air core transformer to operate in audio ...

https://electronics.stackexchange.com/questions/239700/how-to-design-an-air-core-transformer-to-operate-in-audio-frequency-range-20-hz

Here in my locality, audio frequency transformers are not available. I've browsed for possible alternatives online. Emitter follower is a good idea but it is not much efficient. I found an article on the internet about DIY construction of air core transformers. However it was stated in the design that it was intended for radio frequencies.

What Is An Air Core Transformer? - Miracle Electronic ...

https://www.miracle.net.in/blog/air-core-transformer/

What Is An Air Core Transformer? Air core transformers, as the name itself suggests, are transformers that have air in their core, unlike other transformers that have some or the other sort of metal around which wires are wound. These are primary transformers that are used in various types of electronic radio and communication devices.

air-core transformer | electronics | Britannica

https://www.britannica.com/technology/air-core-transformer

Air Core Transformers - Thomasnet

https://www.thomasnet.com/products/air-core-transformers-87010302-1.html

Understanding Air Core Transformers | Custom Coils Blog

https://www.customcoils.com/blog/understanding-air-core-transformers/

Air Core and Magnetic Core Transformers for Isolated Power ...

http://pwrsocevents.com/wp-content/uploads/2016-presentations/live/0_PRES_Baoxing%20Chen.pdf

Air-Core Integrated Magnetics Bridge The Gap Between Air-Core and Discrete Transformers 5 10mH 0.1mH 10nH 1nH 100KHz 1MHz 100MHz 1GHz 30~40% 70~80% Switching Frequency (Size) 10MHz Integrated Magnetic Core 1mH Discrete EMI Challenge Efficiency 50~60% fL I 1 ~ Analog Devices Confidential Information