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 SX-25 SX25 Super Defiant Operating and Service instructions $7.99 Read more Hallicrafters S-37 S37 Very High Frequency Receiver Manual $11.99 Read more Hallicrafters SR-150 Communications Transceiver Manual $11.49 Read more ARMY manual for Hallicrafters SX-28-A SX-28A AN/GRR-2 $10.90 Read more