73 Amateur Radio Today – February 1986
Issue Contents:
Razor-sharp CW
– Here’s a filter for fanatics -or is 80 Hz too wide? …… N6HI 10
New Bands for Old Rigs
– Internal or external converter or transverter here’s how to add three WARC bands to your favorite radio …… GW3SB 16
Razzle-dazzlin’ Your Azden
– Some sleight-of-hand with a fistful of parts will make your PCS-2000 a 2m star! …… K7UKW 20
VIC RAMification: Part III
– Thank W6LOB for the memories …… W6LOB 26
Yesterday’s Circuits Today
– Remember tubes? W6HDM does. He’s resurrected a half dozen of his favorite circuits and updated them with semiconductors …… W6HDM 28
Up Down and All Around
– Fit your KDK 2016A with this ten-dollar Scan Can …… WA2AXO 36
Build a Dynamic Duo
– Add a speaker/mike and a 12-v adapter to your HT …… VE1VQ 40
Scanning the TR-2400
– A simple mod for lazy hams—push the button and it scans! …… WB8IKO 42
The RIT Stuff
– Clarify your FT-101E’s reception with this five-component modification …… K1NYK 44
Rebirth of the Eico 221
– Turn this flea-market regular into a super-sensitive voltmeter. Then count the money you saved …… W5VTJ 51
Super-selectable Bandpass Filters
– PASSE uses extraordinary methods to craft the ultimate i-f filter …… PA0SE 54
Curious About Code?
– Learn (or improve) Morse from your TRS-80! You’ll never find a more patient teacher …… Lewart 60
WARC Rest and Play
– Adding 10-mHz capability to your Yaesu FT-101Z is a simple step-by-step process. In just a few hours you can join the fun on our newest amateur band …… K7KQ 62
73 Amateur Radio Today – February 1986
