K15-4 Ceramic HV "doorknobs"
K15-5 Ceramic HV Disc

K31 Silver Mica "kidney bean" style cap

K40P-2B Paper in Oil, aluminium foil, 5% tol.
K40U-9V Paper In Oil , aluminium foil, Silver body, 10% tol. (also called K40Y-9)

K41-1A PIO, High Voltage "Pulse" caps

K42U-2 metalized paper PIO, green painted body (K75 are better)

K50 Aluminum Electrolytic

K70 Polystyrol

K71-7V Polystyrol "High Tolerance" 1% or 2% tol.

K72P-6 Teflon Dielectric 5% tol. (see example below)

K73-14 PETP High Voltage
K73-15 PETP / Dry Mylar
K73-16 PETP / Dry mylar
K73-17 PETP
K73P-4 "tub " style AC capacitors (may be paper or mylar, still TBD).

K74 PETP HV caps

K75-10 PIO, Green body (these are the prime quality PIO)
K75-15 PIO, High Voltage "tub"
K75-17 PIO High Voltage "tub"
K75-24 PIO Green body tubular (see example below)
K75-28 PIO High Voltage "tub"

K76 Laquer film

K77 PolyCarbonate film

K78 PolyPropylen film

BMT-2 Paper In Oil

FGT High Voltage Teflon Dielectric, Ceramic body (almost beer can size)

KBG, OKBG PIO (no, this isn't the KGB, they're a different entity altogether)

KBI HV "doorknob" RF / Transmitting cap

KSO Silver-Mica "precision" caps

SGM3-A, SGM3-B Silver-Mica "precision" caps (in oil?)

MBG, OMBG-2, MGBO-1, -2, MBGP-2, -3 Metallized Paper-Aluminum "tub" AC caps

MBGCh Metallized Paper pulse capacitors