Quad57-Rectifier-v2.0.kicad_pcb
2 layer board of 2.50 x 2.75 inches (63.5 x 69.8 mm)
Uploaded:
February 07, 2026
Shared:
February 07, 2026
Total Price:
$34.35
Replacement circuit for the Quad Electrostatic Loudspeaker rectifier blocks in the power supplies
Replacement circuit for the Quad Electrostatic Loudspeaker rectifier blocks in the power supplies
Quad ESL-63 High Voltage Board
2 layer board of 3.70 x 2.50 inches (94.0 x 63.5 mm)
Uploaded:
October 23, 2024
Shared:
October 24, 2024
Total Price:
$46.25
This board is a clone of the Quad ESL-63 high voltage board. this generates the polarizing voltage for the panels and is a clone of the most recent circuit still used to this day on all the quad models.
This board is a clone of the Quad ESL-63 high voltage board. this generates the polarizing voltage for the panels and is a clone of the most recent circuit still used to this day on all the quad models.
Quad ESL-63 Zener Clamp Board
2 layer board of 3.20 x 3.00 inches (81.3 x 76.2 mm)
Uploaded:
October 23, 2024
Shared:
October 23, 2024
Total Price:
$48.00
A Circuit board that provides a zener bidirectional clamp protection for the Quad ESL-63 electrostatic loudspeaker. This is a clone of the most recent ESL-63 board design and this circuit continues to be used in all quad models to this day.
A Circuit board that provides a zener bidirectional clamp protection for the Quad ESL-63 electrostatic loudspeaker. This is a clone of the most recent ESL-63 board design and this circuit continues to be used in all quad models to this day.
Quad ESL-63 Input/Clamp Board
2 layer board of 3.38 x 2.45 inches (85.8 x 62.2 mm)
Uploaded:
October 23, 2024
Shared:
October 23, 2024
Total Price:
$41.35
A PCB to replace the RF clamp and input on the Quad ESL-63 electrostatic loudspeaker. This board is a clone of the most recent ESL-63 input board design. It also incorporates the input cap and resistor on the back side of the board along with a film bypass cap.
A PCB to replace the RF clamp and input on the Quad ESL-63 electrostatic loudspeaker. This board is a clone of the most recent ESL-63 input board design. It also incorporates the input cap and resistor on the back side of the board along with a film bypass cap.
HK Citation1 1-input RCA Board
2 layer board of 1.00 x 1.50 inches (25.4 x 38.1 mm)
Uploaded:
August 24, 2024
Shared:
August 24, 2024
Total Price:
$7.50
PCB to replace the single RCA connector asembly on a Harman Kardon Citation 1 Preamp
PCB to replace the single RCA connector asembly on a Harman Kardon Citation 1 Preamp
