{"id":2371,"date":"2020-07-03T21:21:23","date_gmt":"2020-07-03T21:21:23","guid":{"rendered":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-april-1969\/"},"modified":"2023-01-17T01:05:10","modified_gmt":"2023-01-17T01:05:10","slug":"73-amateur-radio-today-april-1969","status":"publish","type":"page","link":"https:\/\/www.snapwhole.com\/index.php\/73-amateur-radio-today-april-1969\/","title":{"rendered":"73 Amateur Radio Today – April 1969"},"content":{"rendered":"\n

73 Amateur Radio Today – April 1969<\/span><\/p>\n\n\n\n

Issue Contents:<\/span><\/h3>\n\n\n\n

Dual-channel Oscilloscope Pre-amplifier<\/h3>\n\n\n\n

– Convert your scope to a $1000 dual channel job. Save money …… W3ZZY 6<\/p>\n\n\n\n

Simplest RF Pre-amplifier<\/h3>\n\n\n\n

– Simple new very effective. Works too …… W1EZT 10<\/p>\n\n\n\n

Education and Ecstacy<\/h3>\n\n\n\n

– Reprint from LOOK Magazine re the “magic” of ham radio …… Leonard 14<\/p>\n\n\n\n

Push-to-talk<\/h3>\n\n\n\n

– Converting the Two’er for this valuable function. Beats LSMFT …… VE3ETJ 16<\/p>\n\n\n\n

Variable DC Load<\/h3>\n\n\n\n

– For testing power supplies and things like that. You never know ……W2AJW 18<\/p>\n\n\n\n

Single-side SWR Bridge<\/h3>\n\n\n\n

– Complete with plan for etched circuit board …… WA5SWD 22<\/p>\n\n\n\n

100 kHz Marker Generator<\/h3>\n\n\n\n

– Used to mark frequencies up to the 144 and 220 MHz bands …… W7CJB 24<\/p>\n\n\n\n

One Technique to Avoid That Routine QSO<\/h3>\n\n\n\n

– Desperately needed information for many phone and CW ops …… W6EUV 28<\/p>\n\n\n\n

Minimum Cost Silicon Semiconductor Survey<\/h3>\n\n\n\n

– Long article but transistor buffs should flip over it. Flip …… Zaranski 30<\/p>\n\n\n\n

Heath SB-610 Monitor Scope Modifications<\/h3>\n\n\n\n

– Makes a good piece of gear even gooder. You need one …… K6SDE 42<\/p>\n\n\n\n

VHF FM Station Control<\/h3>\n\n\n\n

– Switches two channels in each of two bands …… WA7EVX 46<\/p>\n\n\n\n

A Simple Portable Rig for Six Meters<\/h3>\n\n\n\n

– Two transistors and one IC modulator and head for the hills …… WB6BIH 48<\/p>\n\n\n\n

Using FETs in Burst Generators<\/h3>\n\n\n\n

– Now what in the devil is a burst generator? …… K3VKC 50<\/p>\n\n\n\n

Two Meter Converter<\/h3>\n\n\n\n

– For the Swan 250… Or any other receiver or transceiver …… K3VLQ 52<\/p>\n\n\n\n

VSWR An Outmoded Parameter<\/h3>\n\n\n\n

– Adding fuel to the fires of controversy? Or calling troubled waters? …… VE2AXQ 55<\/p>\n\n\n\n

Testing the Drake VHF Converters<\/h3>\n\n\n\n

– The new Drake converters for six and two are grrrreat! …… WlEMV 56<\/p>\n\n\n\n

About Loading…. Which Loads What?<\/h3>\n\n\n\n

– Can an antenna really load a rig? Or does the rig load the antenna? …… Staff 58<\/p>\n\n\n\n

0 Cycle Filter<\/h3>\n\n\n\n

– The ultimate in selectivity …… LX5SM 60<\/p>\n\n\n\n

Camp Albert Butler<\/h3>\n\n\n\n

– You’ve read the ads… Here is what it is all about …… W4UF 68<\/p>\n\n\n\n

Extra Class Study Course – Part 3<\/h3>\n\n\n\n

– Part 3 of 10 parts. Good luck …… Staff 70<\/p>\n\n\n\n

Learning the Morse Code<\/h3>\n\n\n\n

– A new and much faster approach to the code …… K9AAU 85<\/p>\n\n\n