M o d u l a t i o n S e m i c o n d u c t o r s Negative Cycle Loading, W6PQW Jan., 46 AM Speech Clipping, W100P-W1 UIZ-W1WIO Jan., 30 Positive Peak Expander, W3BSA June, 39

Mobile Transistorized VOX, W6WDF, K6UOC Feb., 37 Mobile SSB/CW Adapter, W8HHS Mar. , 48 Transmitter Hunt Antenna, KN2RRZ Mar. , 40 Mobile Third Hand, K0HPJ Apr., 63 Selectivity on Wheels, W6WDF/K6UOC Apr., 44 Squelch, W7FLC May. 54 Comanche (Heath) Mobile Receiver, K5SVJ. Oct., 52 TNS Printed Circuit, W5CA, W5VOZ Oct

Phone Patches Phone Patch, WA2ANU Feb., 42 How The Telephone Set Works, W8CFW June, 56

P o w e r Supply Poor Ham's Power Plant, W2EUP Jan., 44 Silicon Rectifiers Mar., 72 Regulated Power Supply, K9BDO Mar. , 30 Getting VR Tubes To Fire, W3BIM Mar. , 16 Semiconductor Power Supplies, W6TNS Aug., 72 Filter Chokes, W3EJP Nov., 50 Med. Pwr. Voltage Quad., W5TAD D e c , 44

R e c e i v e r s ( S e e C o m m e r c i a l E q u i p m e n t ) Hot-Rodding Hints, Geisler Jan., 36 Preselector, F7FE Mar. , 61 S Meter Amplifier, F7FE/W60LV May, 97 Receiver Alignment Tech., W2HDM May, 60 144 mc Broad Band Receiver, W9DUT May, 58 Squelch, W7FLC May, 56 Updating the SX-28, K2IEG May. 48 S-9 Mark I I , K5JKX May, 44 Transistorized Communications Receiver,

W8DCC May, 32 New Life For Old Receiver, W9LFO June, 50 APA-38, W1FZJ July, 76 More SX-28 July, 20 Product Detector, ZL1AAX Aug., 36 Signal Generator for Low Freq.,

I.F.'s, K4ZGM Nov., 84 S9ER, K5JKY D e c , 38 Printed Circuit TNS, W5CA, W5UOZ D e c , 51

RT7T Auto Start Circuit, W2JTP Jan., 78 Converter RTTY, W2JAV Feb., 106 Taped QSL. W0YKZ Feb., 77 Transistorized Converter, W2JAV Mar. , 73 Filter & Limiter For TU, K8GWZ Mar. , 47 AFSK Detector, K8GWZ Mar. , 46 TU Engineering, K8GWZ Mar. . 44 Comb Filter, W2JTP Apr., 70 Receiver Relay Panel AN/FGC-1 ( X ) ,

W2JTP/0 June, 66 Transistorized Converter, W 0 A C Y Aug., 78 FSK Code Circuit Identification Oct., 68 RF Phase Shift System Nov., 72

Sideband Frequency Stabilization of SSB Transmitter

For Net Operation, W2KPO Jan., 56 Built-in Audio Oscillator, VK2AC Jan.. 42 SSB/CW Adapter, W8HHS Mar. , 48 Better Double Sideband, K9DBO Mar. , 28 4-400A or 4-250A Linear Apr., 104 Stabilizing 9 mc Oscillator, W90KA Aug., 41 Adjustment of Phasing Exciters, G3CWB Oct. , 56 Putting Viking Ranger on SSB, K5GMN Sept., 41 Phasing Exciter, W6HPH D e c , 34 Two Tone Oscillator, W7UPF D e c , 43

Surplus BC-312 2, 6, and 10 Meters Jan., 68 BC-348-BC-312 Feb., 73 BC-312-BC-348 Part II Mar. , 67 BC-221 Apr., 79 BC-455, K2HXS Apr., 39 BC-659-BC-620 May, 98 BC-348, K9KYV May, 47 BC-659 June, 78 Phone Patch EE-89A June, 72 APA-38 Panadaptor July, 76 BC-1335 July, 60 Prop Pitch Rotor July, 46 AN/ARR-2 Aug., 75 1-177 Tube Tester Sept., 62 TCS Conversion, W7GQR Sept., 30 BC-733 ( R e c ) Oct. , 64

High Gain Audio Amplifier Jan., 74 Transistors 1923, Ives Jan., 35 Silicon Rectifiers Feb., 78 Transistorized "Third Hand" ,

W6WDF/K6UOC Feb., 37 Transistorized RTTY Converter, W2JAV Mar. , 73 Mobile SSB/CW Adapter, W8HHS Mar. , 48 72 me Crystal Oscillator Apr. , 84 VHF Converter, K6UOK Apr., 84 Voltage Variable Silicon Capacitor, K6CDW..Apr., 30 Transistorized Receiver, W8DCC May, 32 Semiconductor Battery Charger June, 80 Transistorized VFO, W2AEF June, 34 Code Oscillator July, 83 RTTY Converter, W 0 A C Y Aug., 78 40 & 20 Meter Transmitter Aug., 84 Midget Power Supply, W3LSZ Aug., 72 Zenner Diodes Oct. , 62 40M Phone Rig, W6LZY Nov., 103 Tunnel Diode Nov., 97 EFP-60 Sawtooth Generator, W2ZGU Nov., 60

Test Equipment 30-60 MC Measurements, W5JOK Jan., 55 Simple Sweep Generator Jan., 49 Audio Oscillator, VK2AC Jan., 43 Neon Actuated Monitor, VE3AAZ Feb., 34 A Quick Substitute for an Audio Generator,

K2DHA Feb., 33 Meter Protection, W4WOT Mar. , 51 SWR Meter, PA0LZ Mar. , 32 BC-221 Apr., 79 Code Oscillator & Keying Monitor May, 68 Receiver Alignment Techniques, W2HDM May, 60 Setting the Multivibrator at 10 KC, WOHKF.May, 45 Gadget Box, W2IAZ Aug., 52 9 Uses for NE-2 Aug., 49 1-177 Tube Tester Sept., 62 Adjustment-Phasing Type Exciters, G3CWB Oct. , 56 Condenser Checker, W5CXR Oct. , 51 Signal Generator for LF & I.F.'s, K4ZGM Nov., 84 2 Tone Audio Osc , W7UPF D e c , 43

T r a n s m i t t e r s - O s c i l l a t o r s Table Top Linear (837) , W3LNT/KH6 Jan., 50 Negative Cycle Loading, W6POW Jan., 46 813's, W1MEG Jan.. 28 Calibrate VFO With Your Receiver, VE3DNR Feb., 58 Adding Break-In Operation, W8HJN/6 Feb., 57 VT Keyed Oscillator, W6NRW Feb., 40 Meter Protection, W4WOT/4 Mar. , 51 Voice or Key Automatic Control, W4ZVX Mar. , 50 Automatic Code Transmission, W5DF Apr., 45 Reduced Carrier Operation, W2NVR/2 Apr., 34 Oscillator Using Silicon Capacitor, K6CDW Apr.. 30 2 Meter Broad Band Receiver, W9DUT May, 58 $100.00 KW Final, W0JRQ June, 54 Positive Peak Expander, W3BSA June, 39 Transistorized VFO, W2AEF June, 34 6 to 160 Meter 10 W a t t Transmitter,

W9MWD Sept., 49 250th's In Grounded Grid, W3LNT/W4 Oct. , 42 2 Meter Transceiver, K2HMY Oct. , 34 40M Phone Transistor Rig, W6LZY Nov., 103 Emergency Rig, W7CSD Nov., 92 6AG7-GG Amps, W6BLZ Nov., 89 Automatic Level Control, K6DFM Nov., 48 GG RK65's, W3JHR Nov., 40 Crystal Synthesizer, W2JKH Nov., 34 Reducing Power Output, Novice D e c , 63

UHF-VHF Transistor Converter, K6UOK Apr., 84 7.2 mc Transistor Oscillator Apr., 84 6 Meter Parametric Amp., VK3ZOG Apr., 60 6 Meter Transmitter-Receiver, K2HXS Apr., 38 ARC-5 on 2 M SSB, W5SNX/2 June, 55 APA-38 Panadaptor, W1FZJ July, 76 6 Meter Ground Plane, K4PRU July, 55 Trippling to 1296 mc, W1WID/2 Sept., 52

TVI Twin Lead Traps, K5JKX Jan., 54 Don't Radiate Channel Two, W9KFG Jan., 39 ITV on 6 Meter June, 59 432 mc Parametric Amplifiers, W6AJF Aug., 30 6 Meter Transceiver, W9RPH Sept., 65

In Mcmoriam W0BP, Boyd Phelps Aug., 54 K2AE, Henry Broughton Sept., 55

, Red Rollins

December, 1959 • CO • 135