-40%
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade
Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade

Heathkit SB-220/SB-221 Heavy Duty Power Supply Bundle Upgrade

$ 92.4

  • Brand: Heathkit
  • Model: Heathkit SB-220
  • Type: Linear Amplifier

Description

This is a rectifier/metering/filter capacitor bundle for the SB220/ SB221 amplifier. It uses OEM wiring but does the following: 1.) Uses better longer-life capacitors and bleeders than any other board 2.) Opens the capacitors up for better airflow. Cooler capacitors mean longer life 3.) Adds a 10 ohm 10kV rated surge/fault limiting resistor. This is an actual 10kV-rated part, not a low-voltage part 4.) Converts metering and other components to standard components 5.) Increases the headroom on all systems 6.) Fully protects the meters from tube and other shorts 7.) Allow adaptation to other meter systems but works perfectly with OEM meters 8.) Moves bias on board with real Zener diodes 9.) Adds rail clamp diodes 10.) Retains Heathkit wiring. If you have missing or damaged wiring please let us know before ordering These units are fully assembled and tested. They are not raw parts. The components and boards meet commercial design standards. Instructions are at https://www.ctrengineeringinc.com/download-files-page/ In addition, we have tens of thousands of other RF and analog parts, tubes, and kits. We have been an OEM RF system design business for half a century, spanning vacuum tubes through LDMOS.