Panoramatic adaptor

Here is my panoramatic adaptor. It is built accordint to Czech (Czechoslovak) magarine Radioamatér from 1947. I used tubes EF80+EF183 for oscilloscope and 2x6F31+ECH81+EL84+7QR20 for adaptor. I built both from scratch using modern and original components aproximately from that era. Aligment isn't perfect. You can see amplitude changing while tuning, but it works fine for me.