This '53 wide panel Pro belonged to Robben Ford who used it on several records. I bought it directly from Robben a few years back when he moved to Europe and didn't want to take it with him.
This amp sounds as incredible as you might expect, but it was a working player's amp and has seen some changes over the years.
The transformers are original. The amp has been serviced with new filter caps, a new grounded power cord and some of the old leaky signal caps are replaced as well. There is a plug-in adapter for the first preamp tube that allows you to use a common 12AX7 tube instead of the stock 6SC7. Metal 6SC7s tend to be noisy and microphonic. This adapter makes it much easier to find a quiet tube for the all-important input position, and it is plug-and-play, no changes to the circuit required. The next owner could simply unplug the adapter and stick a 6SC7 back in that position.
It appears that the baffle board might have been changed at some point, not entirely sure. There's an odd port hole in the baffle (see pictures). Not sure why. The grill cloth appears to be original.
The two back panels are either retweeded, or repros.
Speaker is a later Jensen C15N type. It's missing a date stamp for some reason.
All in all this is an amazing sounding pro-level (pun intended) amp that is running at peak level and needs nothing. Ready to go no stage or into the studio.