CEBergheim

Hi,

I want to get rid of the harsh brightness and aggressive volume increase between 1 and 1.2 on my 1959 SLP. Some sources claim that clipping the C17 and C18 caps will remove these problems.

Does this mean i can desolder the two blue caps (4n7 and 2n0), and that's it?

I'm pretty unexperienced with modifying any equipment (except effect pedals and guitars), so I don't want to destroy anything.

If there's any other easy modifications that should be done to improve the overall sound, please tell me.

Best wishes from Norway,

Chris

plexipaul

Hi Chris and welcome to the forum.
I removed C-17 (470pF) and C-18 (2,2nF) in my `93 1959SLP. Removing 2,2nF has the biggest impact tonewise so just snipping one lead of C-18 may already be to ur liking. If not you can snip C-17 too. I said snipping because that makes it easier to bring back the amp stock.

Other easy mods:
- experiment with different preamp tubes (I like TungSol 12AX7 and NOS Philips GE 5751 after the C-17 & C-18 removal)
- shared cathode V1

Less easy but highly recommendable:
-installation of a decent Post Phase Inverter Master Volume (PPIMV)

Good luck, PP