The HT-32, 32A and 32B were Hallicrafters 3rd, 4th and 5th generation of AM-CW-SSB HF exciters. The 32 and 32A were designed to pair with the SX-101 and SX-101A respectively. The HT-32B paired with the SX-115. They all have been and are still being paired with a verity of other receivers. The HT 33 series linear amps were designed as station mates for the HT-32’s.