Just in case you need a custom audio transformer like the one in attach you can contact me and if it's doable then you can have what you won't find in other places.
I use mainly mumetal/permalloy and HiB/GOSS and you can see some results in the FB page attached, where I list from time to time some of my projects, you don't need an account.
https://www.facebook.com/profile.php?id=100057288107123
I'm located in Europe, but in the last 20 years I've sent my xfmrs pretty much all aver the world 🙂
I use mainly mumetal/permalloy and HiB/GOSS and you can see some results in the FB page attached, where I list from time to time some of my projects, you don't need an account.
https://www.facebook.com/profile.php?id=100057288107123
I'm located in Europe, but in the last 20 years I've sent my xfmrs pretty much all aver the world 🙂
A recent example of an AVC (autotransformer volume control) 🙂
The most advanced, precise and musically friendly volume control method I know, inductor/xfmr (AVC/TVC) volume control - here with this attenuation rule;
0, -3, -6, -9, -12, -14, -16, -18, -20, -22, -24, -26, -28, -30, -32, -34, -36, -38, -40, -43, -46, -49, -52dB
An impressive 185H at 102Ω winding resistance in DC, more than 30k impedance. Size D54xH65mm
Practical results, 10-400kHz frequency sweep, in particular this AVC can work with signals well above 10Vrms!
The most advanced, precise and musically friendly volume control method I know, inductor/xfmr (AVC/TVC) volume control - here with this attenuation rule;
0, -3, -6, -9, -12, -14, -16, -18, -20, -22, -24, -26, -28, -30, -32, -34, -36, -38, -40, -43, -46, -49, -52dB
An impressive 185H at 102Ω winding resistance in DC, more than 30k impedance. Size D54xH65mm
Practical results, 10-400kHz frequency sweep, in particular this AVC can work with signals well above 10Vrms!
Attachments
