Heathkit SB-221 80-15m Amateur Linear Amplifier, Two NEW 3-500ZG Tubes (1 Year Warranty for the Matched Pair of RFPC Tubes)

Heathkit SB-221 80-15m Amateur Linear Amplifier with Two NEW 3-500ZG Tubes 

This amplifier (s/n 07-45665) was the monster in the Heathkit lineup of its day. It boasts 2KW PEP input SSB and 1000W input CW. The real beauty of this amplifier is that it has been upgraded and tested at the RF Parts Company test lab in San Marcos, CA.

There have been several modifications to enhance the performance and longevity of this amplifier.

These include:

• True grounded grids on the tube sockets, not RF choke isolated
• New Harbach power supply board
• New Harbach metering board
• Relay Bias modification

Of course, all components have been inspected, cleaned, and the fan was lubricated.

This amplifier has been fully tested on all bands using our high quality test and measurement equipment.  Power output is excellent! 

The unit comes with a brand new matched pair of RF Parts Company 3-500ZG Graphite tubes (shipped separately). The pair comes with a full one year RF Parts Company tube warranty. Warranty instructions are included with the tubes.  These tubes are the exact set that were tested in this unit.

The Heathkit SB-221 will make an excellent vintage addition to your ham shack and provide many years of service.  A Ham license is REQUIRED to purchase this unit.  Please send us a  message regarding your Call Sign.  Don't let this one get away!

K6RFP