Pflug Pilger Erhebt euch gain tube Supermarkt Unangenehm Einkaufen gehen
Guitar Pedal X - GPX Blog - Tubesteader's 4th Tube-Powered Gain Pedal is its first Compact - the rather smart Eggnog Tweed-voiced Overdrive / Preamp
Beacon Tube Amps - TWIN TRIODE GAIN FACTORS The table below gives the gain factors for various twin triode preamp tubes with the same pin-out. All of them are drop in replacements.