Heathkit SB220 Linear Amplifier
- 1000 to 1300 watts output with less than 100w input depending on band
- Harbach capacitor/diode and soft start upgrades
- External isolation box to protect modern transceiver on "SEND" line
- Standby/bypass switch added to front panel for easy tune-up
- Two EXTRA 3-500Z tubes (working and tested)
- Original Manual
- Setup for 220vac
- Has been in regular use; upgraded to solid-state amplifier
- Can demonstrate for serious buyers