Receive filter options above link. The best around!
I had a TS-450 for like 11 years.
Installed were these:
Cascade 2.4kc SSB filters (both IF's) radio has only one installed from factory (no longer available) add #94 instead
2.8 kc SSB filters (both IF's) #88 + #89
6.0 kc AM filter #100
1.8 kc narrow SSB filter #95 (though I rarely used that unless band was super crowded)
These make it a receiver beyond believe, when I sold the rig, I got more out of the filters than the rig!!!
I could out hear most rigs of the era. These are superior to the filters Kenwood made for this!
Vibroplex, Bencher, GHD and Hi-Mound Morse Code keys. INRAD headsets, microphones and filters. Par EndFedz EFHW antennas, Spiderbeam fiberglass poles. mAT-TUNER automatic antenna tuners, Easy-Rotor-Control rotator controllers, DX Patrol receivers
www.vibroplex.com
Troubleshooting notes above
If this mod not done (check immediately!) this battery will leak and EAT the traces off the board!
Once this occurs almost impossible to repair!
All the Best
Gary/W9FNB
PS: Best Shop I know to work on old Kenwoods!!