New knob day!
Since accidentally breaking the preamp on my Hohner Jack, and subsequently fitting a passive loom (courtesy of @KiOgon), my Jack has been knobless.
I finally got around to getting some new ones for a very reasonable price off eBay. I say reasonable, as the reason they were so cheap is now very apparent!!!
I was going to request a refund or something, but I’m finding it funny, so perhaps I’ll keep them on.