Mods........
So you have an old Fender Twin Reverb that sounds weak and thin chances are, as with most amplifiers over 20 years old, it needs an overhaul. We can just 'change the tubes, re-bias and send it home', but overall, you aren't getting the most out of your amp. Even if the amp has been sitting un-played for 40 years, the power supply capacitors dry out and leak, not unlike the batteries in your emergency flashlight you forgot about in the cupboard. The result is poor lows, thin sound and often times, hum, noise and weird harmonics when playing loud. Overhauls also keep the amp running safely and reliably.

True story: last year a customer brought me a nice old tweed Fender he just purchased that hadn't been played in years. I recommended re-building the power supply before playing it. He said he'd rather keep it 100% original as to retain its 'vintage value'. I said 'play at your own risk!' Next day he was back, a $5 capacitor had shorted and wiped out the priceless power transformer. The repair bill was $100 more and the value of the amp was cut in half in the space of 5 minutes! So much for the 'vintage value!'
If you simply want an amp museum, leave all those old parts, but if you want to play some music, get it overhauled or roll the dice. 
Overhauls aren't cheap by any means, they are based on the size and wattage of your amplifier. Most small Amps are around $100-$150 range, large amps such as a Twin Reverb are around $250-$450. Well worth it seeing that the value of these amps continue to reach for the sky…
In an overhaul we replace what is needed. If your tubes are still good we leave them unless otherwise requested. We replace resistors with carbon composition because they sound the best. In the power supply we use wire wound or metal oxide simply because they function better and are more reliable. 
If we replace the signal caps we use Sprague 716 orange drop capacitors for the final stages and Mallory 150 series for the preamp stages to retain a nice vintage tone. I see a lot of good old amps that were overhauled recently that have orange drop 715 series caps throughout the entire circuit, resulting in a harsh, clinical tone like many of the spendy boutiques amplifies available today. This is still a common practice today which I don't like. I prefer amps to be louder and more powerful sounding, with better cut, deeper tone, but never without pleasant distortion and never sterile!

Why people still use all orange drops is beyond me! Sounds about as vintage as a new corvette drives! But, if you want a hyper sound, let us know and we'll accommodate. If you have a post '67 Fender amplifier, change every signal cap. Trust me, Fender used the worst caps ever from 67-79 and this accounts for most of the limp 'silverface' tone. You won't regret it, in fact you won't believe how much better it sounds. Of course we will always give you back you old parts on request.  <----BACK

(more about mods)
I’ve had one person bring me a pristine Vox AC 30 from ’63 with all the original parts!  He wanted some mods he read about.  After a good tune up no mods were necessary, he was happy with the sound and couldn’t believe how long he let it sound bad. 
We do “blackface” and “ brownface” mods routinely and even have some tricks for new Fenders.  If you have a mod you found on the interweb, download the schematics and/or instructions and we’ll be happy to accommodate.  <----BACK