I got a pair of these and I'm not sure what they are, they look to be too old and well built to be home made. Only marks are HT-1-101. Tube layout is 2 5881 5v4 2 6SN7. Any help would be greatly appreciated. Thanks
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[IMGDEAD]https://i586.photobucket.com/albums/ss301/kaurand/IMG_5863-900_zpsb9ec66a8.jpg[/IMGDEAD]
[IMGDEAD]https://i586.photobucket.com/albums/ss301/kaurand/IMG_5861-900_zps7d921c3c.jpg[/IMGDEAD]
[IMGDEAD]https://i586.photobucket.com/albums/ss301/kaurand/IMG_5863-900_zpsb9ec66a8.jpg[/IMGDEAD]