73 Amateur Radio Today – October 1987
Issue Contents:
Microwave Building Blocks
– The Doubly-balanced Mixer -enjoy superior performance over the singly-balanced mixer with this project …… WB6IGP 20
Everyman’s Microwave Amp
– Minimal modification of a microwave cavity gives a 100-watt amp on 1.2 GHz …… KT2B 24
Linear ICs
– Bewildered about ICs? Check out this primer …… K4IPV 26
Gunn and IMPATT Devices
– WB6IGP shows safe methods of testing these microwave diodes …… WB6IGP 30
Satellite TV Receiver Components
– A collection of circuits for 23cm …… KD4MDR 34
TV Tuner Scanner Converter
– Got a junk TV? Let its tuner and a scanner receive 800-900 MHz with this afternoon project …… W6WTU 40
Troubleshooting Tips
– Tricks for testing lezkagk opens shorts audio distortion and ICs …… W9NGP 45
Dry Cell Tester
– A practical and useful project for the technical greenhorn …… W6WTU 48
Cadillac of HF Rigs
– The ICOM IC-761 Transceiver …… WA4BLC 12
Know the Fax
– The Alden Weatherchart FAX Recorder …… WB8DQT 16
