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| Practical Wireless July 1955 Valve voltmeter 394 Short wave section 397 Relays 400 Test, instruments 408 Telephone attachment for tape recorder 414 Servicing receivers 415 Mechanical station selection 418 Mixer fader unit 425 Modifying R1132a 429 Modulation hum 430
Practical Wireless September 1955 Test Instruments 522 How many turns? 528 Switched auto station selection 536 Improving amplifier performance 541 2 metre Walkie-Talkie 543 2-3 valve superhets 549 F.M. receivers 553 Mains transformers 562
Practical Wireless October 1955 SET Analyser 605 Bench Power Supply 611 Tape erase and Bias Oscillator 621 2-3 valve Superhets629 Test Instruments 633
Practical Wireless November 1955 3 stage transistor receiver 662 Test instruments 667 Improved TRF tuning 681 Car radio to make 683 Conversion of DC 697 | ||
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