This is a gorgeous example of a 5F11 Vibrolux! With only minor signs of previous wear, it stands out compared to most Tweed-era amps. The Vibrolux offers a nice change with its tamer gain compared to the Tweed Deluxe, thanks to its grid bias rather than cathode bias. The power cord and electrolytic caps have been replaced, and the three caps have also been changed to maintain Tremolo functionality. There’s a bit of gapping on the back panel, which may indicate it’s an OEM swap from the '60s—especially since it has “you know what” inside the panel, which hasn't been produced since. On top of all this, it still has the original Victoria Amp cover! A very cool piece.