PAPER IN OIL, RUSSIAN CAPACITORS MBGO ( МБГO). Interchangeability: KBG, K73-16, K42-19, MBGO, MBGCH, MBM, etc. 20uF / 300V / +-10%. Other than that they are dirt cheap, better than average, a bit slow, you may find highs suppressed, but strong lows and mids.
