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40-20-20-20 uF at 525V Twistlock Capacitor One 40 uF and 3 20 uF at 525V sections. Twist-lock mount, 1 3/8 inch (35mm) diameter by 2 1/2 inches (65mm) long. Fits Dynaco ST70, Mk2, Mk4, Scott 299, LK48, LK72 and many other tube amps.Not recommended for use in Dynaco Mk3 or Sunn amps,which really need a 550V or higher rating...(use an SDS Labs capacitor board instead for reliable service).. Fresh new stock made in USA.

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20-20-20-20 uF at 475V Twistlock Capacitor
Four 20 uF at 475V sections. Twist-lock mount, 1 3/8 inch (35mm) diameter by 2 inches (52mm) long. Perfect fit for Dynaco PAS2 and PAS3, also Fender Champ, many others. Fresh new stock made in USA.

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SpeakerTerminal Strips for Dynaco Amplifiers Replacement sets of speaker terminal strips for dynaco amplifiers. Price includes two terminal strips.

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Bias Repair Set for Dynaco ST70 & Mk4. Replaces selenium bias rectifier with silicon diode,
also includes resistors & capacitors used in bias circuit
that are not on the printed circuit board.Not needed on ST70 if you install the SDS Labs Capacitor board

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Bias Repair Set for Mark 3 Replaces selenium bias rectifier with silicon diode,
also includes resistors & capacitors used in bias circuit
that are not on the printed circuit board.These parts are also included in the Dual Bias Kit on this page.One set required per amplifier

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Dual Bias Kit for Dynaco Mk3/Mk2 Amplifiers with Triode Electronics upgrade This allows for biasing each 6550/KT88/EL34 tube
individually rather than as a pair, note that a hole
must be drilled for an additional bias control to use this.
Kit includes parts that are in the regular Bias Repair kit as well.This kit works only with our board. One kit required per amplifier

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ST70 Offboard Resistor Set This set includes all resistors in the amplifier that are not mounted on the circuit board. Includes 10ohm 2W biaset resistors, 10k 2W bias supply resistors, 1k 1/2W grid stoppers, 6.8k 2W & 22k 2W power supply resistors, and 470k 1/2W input grid reference resistors.

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15ohm 2W Carbon Film 15ohm 2W Carbon Film Resistor. Made by Piher in Spain. Great replacement for Original ST70 Biaset resistors to keep the 1.56V biaset. Note, these are sold in a quantity of one so if you are using them for a ST70 you will need to order two of them.

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RCA Jack Gold/Teflon Fits 3/8 inch (10 mm) hole. With insulating washer. Choice of red or black color coding.

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Plastic Chassis Mount 7 Pin Socket Mounts from bottom of chassis. Standard NOS US issue for mounting in a 5/8 inch hole. NOS USA manufacture. You can combine this item with the 7 pin shield to make a 7 pin shielded socket.

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Ceramic 7 Pin PC Mount socket 7 pin miniature (British nomenclature B7G) socket for printed circuit board mounting.

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9 Pin PC Mount shield base socket
Standard size 9 pin socket for printed circuit board mounting (3/4 to 13/16 inch pin circle diameter), but has base skirt for a standard "j-slot" shield (sold separately, see below).

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9 pin Ceramic Gold Plate PC Mount Socket Standard size for printed circuit board mounting (3/4 to 13/16 inch pin circle diameter), gold plated pins.

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9 pin Ceramic PC Mount Socket Standard size for printed circuit board mounting (3/4 to 13/16 inch pin circle diameter)

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Ceramic Standard Socket
Fits holes 1 inch to 1-1/8 inch diameter, mounting
holes are on 1 1/2" centers.

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Gold/Ceramic Chassis Mount Socket (China) Fits holes 1 inch to 1-1/8 inch diameter, mounting
holes are on 1 1/2" centers. With separate mounting ring, so may be mounted on top or bottom of chassis.

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Octal (8 pin) Amphenol Molded In Plate Socket 77-MIP-8 Octal Amphenol Molded In Plate,new,black plastic with plated brass contacts, mounts in conventional 1 1/8" hole with 1 1/2" mounting centers. Made in USA.

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ST70 Dual RCA Input Jacks Original NOS Dual RCA Input Jack. Replace or restore broken part. Same as Original.

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