In article ,
radiorob wrote:

Hi Guys:


Yesterday I was fortunate enough to pick up a few more Boatanchors
for the collection.....Another RACAL RA-17 with ISB Converter, and an
EICO 720 Transmitter. The Transmitter is in Nice Condition both
Physically and Electrically...a Real Cool Looking little Rig!!
I do not have the Manual for this yet.....so don't know much about
it...except that it's supposed to be 90 Watts CW and AM????
Has anyone out there got one of these...or have you ever used one??? I
would appreciate any comments on the Rig either Good Bad or Ugly!!


Is it possible to hook a Microphone directly to the Rig??? I see there
is a Plug on the Back of the Transmitter that says "Modulator"......Do
I need something in between the Mic and the Transmitter...or can a
Mic just be wired to that plug and away we go???


Any info, advice, comments pertaining the the Eico 720 Transmitter are
greatly appreciated!


73.........ROB VA3SW


Antique/Vintage Radio Enthusiast
Amateur Radio Stations VA3SW/VE3JFC


Defy Physics.....Play Table Tennis!! (Ping Pong with an Attitude)
«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§« ¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»¥«¤ »§«¤»¥«

The 720 was my first rig back in early '60's. It was a nice looking rig
and a good performer for many years. As others have mentioned it does
require an extenal plate modulator for phone operation. I still have its
other companiion piece, the Eico 735 VFO, acquired when I no longer had
to be crystal conrolled.
If you ever see the old "Andy Griffith Show" reruns, you will notice
that a 720 sits on the radio desk with a mike plugged into the key jack.
Never quite figured how that was supposed to keep Andy and Barney in
touch!
--
Chuck Reti
WV8A
Detroit MI

Rob,

The companion modulator must be used for AM operation, the basic rig is just
CW.

73s,

Evan

Chuck Reti wrote:

The 720 was my first rig back in early '60's. It was a nice looking rig
and a good performer for many years. As others have mentioned it does
require an extenal plate modulator for phone operation. I still have its
other companiion piece, the Eico 735 VFO, acquired when I no longer had
to be crystal conrolled.
If you ever see the old "Andy Griffith Show" reruns, you will notice
that a 720 sits on the radio desk with a mike plugged into the key jack.
Never quite figured how that was supposed to keep Andy and Barney in
touch!
--
Chuck Reti
WV8A
Detroit MI

By using a carbon microphone, of course!
--
Beware of those who suffer from delusions of adequacy!

Michael A. Terrell
Central Florida

In article ,
"Michael A. Terrell" wrote:

Chuck Reti wrote:
Way back in September...


The 720 was my first rig back in early '60's. It was a nice looking rig
and a good performer for many years. As others have mentioned it does
require an extenal plate modulator for phone operation. I still have its
other companiion piece, the Eico 735 VFO, acquired when I no longer had
to be crystal conrolled.
Oops. Meant 722 VFO (anyone want one)?

If you ever see the old "Andy Griffith Show" reruns, you will notice
that a 720 sits on the radio desk with a mike plugged into the key jack.
Never quite figured how that was supposed to keep Andy and Barney in
touch!
--
Chuck Reti
WV8A
Detroit MI

By using a carbon microphone, of course!
Cathode modulation, of course.

--
Chuck Reti
WV8A
Detroit MI