Upgrade the sound of your amp with the high quality Mallory 150 series capacitors. Experience smooth tone and high reliability. Mallory 150 series are tubular metalized polyester capacitors rated for 630V with 10% Tolerance. They are non-inductive and self healing, making them excellent for use in tube amplifiers. Their great warm tone makes them a premium upgrade for coupling capacitors and tone circuits. Generally, they are a bit warmer and darker sounding than Sprague Orange Drops. They have a tendency to "round off" harsh overdrive sounds.