Hallicrafters HT-7 Frequency Standard Manual Sorry, this product cannot be purchased. $6.99 Category: Hallicrafters Description Description For sale is reprint of Hallicrafters Model HT-7 Frequency Standard Manual. Manual is 4 Pages long and includes Part List and Circuit Diagram. Manual consists of 6 sections: Operation, Uses. HT 7 Part List. Related products Hallicrafters S-40B S-40BU Communications Receiver Manual $8.49 Read more Hallicrafters SX-122 SX122 Communications Receiver Operating Service Instruction $8.99 Read more ARMY manual for Hallicrafters SX-28-A SX-28A AN/GRR-2 $10.90 Read more Hallicrafters SR-150 Communications Transceiver Manual $11.49 Read more