I recently finished the last of several mods to this 1965 Silvertone 1482. I installed the chassis and speaker in a new custom cabinet, which probably gave the greatest improvement of all of the mods. The old cabinet had a 1/4" two-piece pressboard speaker baffle plate with a square opening. It was even slightly warped from the weight of the speaker over the years. I'm sure this reduced manufacturing costs, but it was killing the sound. The new cabinet is solid pine with Black Taco covering and a brown leather Fender dog bone handle. The amp now sounds much "louder" and tighter. It was like taking the proverbial blanket off the amp - it really opened up the sound. I've gone back and forth between the stock 4 Ohm Fisher alnico speaker and an 8 Ohm Jensen P12R. I ended up keeping the Fisher. I've read a lot of complaints about the stock Fisher speaker in these amps, but after switching to the custom cabinet, adding the Jensen made minimal difference to my ears. I'm not convinced that the Fisher is all that bad of a speaker for the gritty sounds that this amp puts out. I also cleaned and re-tensioned the tube socket pins, which got rid of all the preamp popping and crackling that I thought was from the original tubes (Tung Sol 12AX7 preamp tubes and Sylvania smoked glass 6V6 power tubes - Silvertone branded). I replaced the original non-polarized two prong AC power cord with a grounded power cord for safety reasons. The original power cord was fused on the neutral side and also had a .05 MFD neutral coupling cap (the notorious "Death Cap") to ground. I moved the fuse to the hot side in front of the power switch and removed the neutral coupling cap. I didn't change the circuit all that much. The original input jacks for the Instrument and Microphone channels were not shorting jacks, and were picking up a lot of noise. I replaced these with Switchcraft 12A jacks and also changed the two inputs for the Instrument channel to a Fender 5E3 Hi/Lo circuit. This eliminated most of the noise and also gave me a Lo input to use with my Les Paul. I also changed out most of the out of spec resistors and capacitors. The end result is a much "louder" and tighter amp with almost no noise and without any noticeable loss of that gritty Silvertone "mojo". It's still a very dark amp - heavy on the mids - and it's almost impossible to dial in a usable clean setting. This, however, does not bother me all that much, as my goal was not to transform it into a Tweed Deluxe. That's not to say that I won't consider switching the volume pots to audio taper pots to see if I can't get a bit more control over dialing in the cleans for the sake of a little versatility, or perhaps add a 120 pF "bright" cap to the volume pot on the Microphone channel to improve the high end. Just not right now.