I currently have the relay problem but have not done the mod as it is
not too bad yet. Would love the mod if you know where to find it
though. Vacation was wonderful! Did not take radio due to several
reasons but that was ok, got lots of hiking done which was better for me
anyway and learned something about archery from an Olympic class
instructor.
###
BRETT WINCHESTER
[log in to unmask]
208-639-8386
###
-----Original Message-----
From: For blind ham radio operators
[mailto:[log in to unmask]] On Behalf Of Lou Kline
Sent: Friday, July 06, 2007 6:30 PM
To: [log in to unmask]
Subject: Re: tuner
Hi Brett.
I did do quite a bit of general listening with the TS430S. It wasn't
the hotest receiver I ever had, but it wasn't bad, and it had fairly
nice audio characteristics for general listening, especially if you
sprung for the 6 KHz AM filter or one of the after market knock-offs.
One problem that I had with mine was with the relays that were used to
switch in the bandpass filters for the various ranges. After some
operating time, the relay contacts began to oxidize and make very poor
contact. There was a certain magic spot on the top of the radio that
you could tap and everything would come back to life until the next time
you tuned to a different range.
I ended up sending to Kenwood for another set of relays. A friend of
mine found a modification that passed a small DC switching current
through the relays. It involved adding a blocking cap to keep the DC
from going where you didn't want it and maybe one or two other
components. My friend was a technician over at Scientific Radio at the
time, and had access to commercial grade equipment and tools, and did
the modification, realigned the radio, told me the the thermal drift for
the master oscillator for the first hour was 30 Hz, and when I got the
radio back, it sounded great, and I never had another bit of trouble
with it. I probably would have kept that radio for years if I hadn't
gotten laid off from work, but I hit a point where I needed money more
than ham radio, so I sold out almost all of the station. I bought an
old SB401/SB303 pair to keep something on the air and used that along
with my Icom IC2AT.
Eventually, I got hungry enough to even sell the Heathkit twins.
Fortunately, a few weeks later, I found my present job, and the day
before I started the job, I won a Icom IC735 as the Grand Prize from a
local hamfest, and I was back on the air.
I do recall using the TS430S to tune VLF and Medium Wave. It wasn't too
bad. Of course, I had the good fortune of living 37 miles outside of
Rochester, then, so a full sized yard in a quiet listening location went
a long way.
On this coming Monday, it will be 17 years since I started my present
job.
As painful as it was selling out the station, it was kind of fun
building it back up again once I got back on my feet!
73, de Lou K2LKK
At 09:50 AM 7/6/2007 -0600, you wrote:
>Nether did I except to fid out where the remote receiver input was as I
>had a loop for a time for low noise receiving on .1.8 MHz. =20
>
>
>###
>BRETT WINCHESTER
>[log in to unmask]
>208-639-8386
>###
|
