Looking up MJ5023 MJ15024 transistors - HV high current bipolar complimentary transistors for a subproject, I found all this stuff on aliexpress.
I had no idea you can get things like a vacuum tube audio amp that accepts bluetooth, sdcard, usb, and network as audio input sources. And free app for same. Also, 60-80W and bigger amps with the above mentioned transistors, that would save time for me over developing something. And it's all pretty cheap.
They are sneaky though and kept blocking me with a 'join' thingie. - try to get you to join in order to see items - but I got around it by googling 'aliexpress MJ5023 MJ15024 ampiifier' - apparently google looks into
their search results.
My point of this post is my tube station is not so friendly to digital inputs and I'd love a remote, digital wireless, or TCP-IP mike for instance and those things are expensive boutique items around here, but that site has a ton of related stuff.
https://www.aliexpress.com/item/Brand-New-High-End-Black-APPJ-Mini-Desktop-HIFI-6J4-6P4-Tube-Amplifier-Smart-WIFI-SD/32706052221.html?spm=2114.40010208.4.78.hxSBoghttps://www.aliexpress.com/w/wholesale-tube-amplifier.htmlhttps://www.aliexpress.com/w/wholesale-mj15024-amplifier.htmlcomplimentary circuit;
https://www.aliexpress.com/item/Assembled-MJ01-AMP-board-HIFI-Class-AB-A-amplifier-board-180W-180W-MJ15024-MJ15025-amp/32721449645.html?spm=2114.40010208.4.72.bFMf3A
