This Heathkit SB220 Amateur Linear Amplifier was the monster in the Heath lineup of its day. It boasts 2KW PEP input SSB and 1000W input CW. It has been refurbished, upgraded and tested at our test lab in San Marcos, CA. There have been several modifications to enhance the performance and longevity of this well-respected amplifier.
The modifications include:
•True grounded grids on the tube sockets, not RF choke isolated •New Harbach power supply board •New Harbach metering board Relay •Bias modification
All components have been inspected, cleaned, and the fan has been fan lubricated. The unit has been fully tested on all bands using our high quality test and measurement equipment. The Power output is excellent! However, as with most vintage equipment, due to age, the unit itself is offered without express warranty.
The unit comes with a New, Matched Pair of RF Parts Company's 3-500ZG Graphite tubes (shipped separately). These tubes have a One Year, RF Parts Company Tube Warranty. The matrched set of 3-500ZG tubes are the tubes that were tested in this unit. They have been burned in and are Plug & Play tubes.
A Ham license is REQUIRED to purchase this unit. If you are interested in purchasing this Heathkit SB-221, please send an email to rfq@rfparts.com, and include your Call Sign.
This Heathkit SB220 Amateur Linear Amplifier was the monster in the Heathkit lineup of its day. It boasts 2KW PEP input SSB and 1000W input CW.
It has been refurbished, upgraded and tested at our test lab in San Marcos, CA. There have been several modifications to enhance the performance and longevity of this well-respected amplifier.
The modifications include:
•True grounded grids on the tube sockets, not RF choke isolated
•New Harbach power supply board
•New Harbach metering board Relay
•Bias modification
All components have been inspected, cleaned, and the fan has been fan lubricated. The unit has been fully tested on all bands using our high quality test and measurement equipment. The Power output is excellent! However, as with most vintage equipment, due to age, the unit itself is offered without express warranty.
The unit comes with a NEW matched pair of RF Parts Company 3-500ZG Graphite tubes (shipped separately). This pair of 3-500ZG tubes comes with a full One Year Warranty through RF Parts Company. These tubes are the exact set that were tested in this unit. The Heathkit.
A Ham license is REQUIRED to purchase this unit. Please send an email to rfp@rfparts.com, with your Call Sign.