808 Silver Mod parts?

RobertoJL

RobertoJL

New member
Hello everybody. Firstly, as a life long musician and tinkerer, I get so much from this forum. Hope you guys have a wonderful and rewarding 2026!

So, a friend has asked me if I could do the so-called Silver Mod to his TS9. He had one modified by Analogman but he had to sell it at some point, and now he'd like to have once again. Now, we live in Chile, so you can imagine shipping and taxes make importing one from Analogman or Reverb quite costly, so we will be trying to mod one ourselves.
That being said, not much is found online regarding exactly what the mod is all about, apart from the IC and the stock caps being replaced with fancier ones (high quality Panasonic caps?). I have only found a couple of pictures, but the caps in both images appear to be different from each other.

Any idea how to accomplish this mod, and the actual parts required?

Thank you so much. Again, have a great new year!
 
Thank you so much for your response. I have been reading for days on end through all sorts of forums researching this very subject and I can tell it's flogging the same dead horse for so many, so I really appreciate your response. If all these parts etc were readily available where I live, I would experiment myself, but tariffs and shipping make this impossibly expensive and time consuming, so I have to build an informed opinion basically by comparing opinions and finally taking the plunge.

As far as I can tell, this "silver mod" uses fancier caps. I have been just quoted the following by a Small Bear representative:

"It seems like the main goal in the mod is to replace the electrolytics and ceramics with film caps.
Film caps are generally better tolerance, and lower leakage than the cheaper parts.
Simply put any film caps will likely be an improvment."

I wish I had the knowledge to check whether or not this is true.
 
if you want exactly the silver mod, you'll have to do exactly the silver mod.
if I were to do a distilled down, best bang for your buck version I'd reference this picture
silvermod ts-9.jpg
if the op amp is somehow not a 4558, replace it ... throw it on a socket if you like
replace the two 1uf electrolytics just above the op amp with 1uf film caps
replace the two 220n tantalum caps with 220n film caps
replace the 470R resistor with 100R and the 100K with 10K (808 mod)
replace the 20n input capacitor (labeled 27n on this picture) with a 47n film cap

so you're replacing 5 capacitors, two resistors, and maybe an op amp and none of the parts are hard to come by
 
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