Home » Archive by category 'SB-221'
  admin - June - 12 - 2017 - Comments Off on Adding the Ameritron AL-80B to the shack

The VA7ST station has a new contesting amplifier — the Ameritron AL-80BX joins a pair of SB-221 amplifiers for high-power operation. See how they matched up in the DRCG Worldwide RTTY contest, and general thoughts about both approaches to QRO contesting.

  admin - May - 9 - 2016 - Comments Off on Heathkit SB-221 brought back to life

An overview of my SB-221 amplifier repair project — a notebook about what it needed and what I did.