Subject: | |
From: | |
Reply To: | |
Date: | Fri, 24 May 2013 11:36:06 -0700 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
When I had my Drake Tr-4 I had a ham friend mark the bezel every
5 KHZ with smaller dots. Those Drake rigs had great linear
tuning across the bands. Pretty good for back in the 70's. I
also had an audible tuner that I still have, but it no longer
functions. That was hooked into a cheap Radio Shack SWR meter
and I could tune for the highest tone out of the audio box. Jim
WA6EKS
----- Original Message -----
From: Howard Kaufman <[log in to unmask]
To: [log in to unmask]
Date sent: Fri, 24 May 2013 06:44:18 -0500
Subject: acessible radios
All in the ear of the beholder.
I started out with a johnson valiant. I tuned the transmitter by
pressing
my ear to the metal case, and listening for the dip in hum. I
tuned the
grid by listening to the click of the meter needle. Later I
counted the
dial turns on the drake radios. Since each turn was 25 khz, you
could get
with in 2 khz or so quite easilly. I have wondered if a neon
light coupled
to a feed line could be read by an audible light probe. How good
would
maximum brightness be? Interesting experiment. Then in the late
80's I
bought a triton 4 and found the speech box that tentec made for
it. I
thought I had died and gone to heaven.
I have an Omni D and still have that box. That's a backup radio.
We've come a long way.
H T Kaufman MSW LCSW
Adaptive Technology Instructor
|
|
|