Grid view List view Bias Balance Control KitThe Dynakit BBCU-1, Bias Balance Control Upgrade is a simple and effective circuit upgrade for equalizing the bias current between each pair of output tubes. Designed specifically for the original or new Dynakit ST-70, Mark II/III and MKIV amplifiers. The… View Product BIAS RESISTOR….MARK III11.2 ohm 1% precision wire wound non-inductive bias resistor. Sold as each. $6.00 View Product BIAS RESISTOR….MARK IV13.5 ohm 1% precision wire wound non-inductive bias resistor. Sold as each. $6.00 View Product BIAS RESISTOR….ST-7015.6 ohm 1% precision wire wound non-inductive bias resistor. Sold as Each. $6.00 View Product MARK III BIAS KIT(Replaces selenium rectifier) Includes 1 amp, 1000 vac (1N4007) silicon diode, terminal strips, capacitors, resistors & hardware. Choice of either carbon composition or metal film resistors. Wiring pictorial included. View Product MARK IV BIAS KIT(Replaces selenium rectifier) Includes 1 amp, 1000 vac silicon diode, terminal strip, capacitors and resistors Choice of either carbon composition or metal film resistors. Wiring pictorial included. View Product SILICON DIODES1 amp@ 1000 volts. Passes current in one direction only. (Anode to cathode) Available with or without (2) lug terminal strip. Suggested replacement for the original Selenium rectifier that was supplied with most early vintage tube amplifiers such as: The… View Product ST-35 BIAS CIRCUIT KITIncludes (2) 1 amp, 1000 vac silicon diodes, terminal strip & resistors. Choice of either carbon composition or metal film resistors. Wiring pictorial included. View Product ST-70 BIAS CIRCUIT KIT(Replaces selenium rectifier) Includes 1 amp, 1000 vac silicon diode, terminal strips, capacitors and resistors. Choice of either carbon composition or metal film resistors. Includes wiring pictorial & mounting hardware. View Product Out of Stock ST35 Bias Control UpgradeThe ST35-BCU Bias Control Upgrade Kit is engineered to fit the new or original Dynakit® ST-35 amplifier. The ST35-BCU employs an adjustable fixed bias circuit which allows for user adjustment of the bias setting of each (EL84) output tube via… $85.00 View Product
