Hello,
Steve and all,
I have the scans of the BC-1T Low Power Conversion M-5789
manual posted on my website at:
http://photos.doxaudiolab.net/thumbnails.php?album=18
These are large Gif files that have been cleaned.
If there are any errors to be noted or changes/further info please let me
kn
Good Morning AM-ers:
I just read Bill's (KB3DKS) post concerning 250 watt
operation of the BC-1T. I'm probably entering in the
middle of a thread, but what the heck.
Two years ago I adopted a BC-1G. Instead of using
series resistors, I opted to use a Variac. Details of
that modification and ot
These are large Gif files that have been cleaned.
If there are any errors to be noted or changes/further info please let me
know.
Bill
KB3DKS/1
Maybe I'm missing something, but the text and images are too small to read.
Unlike when I read pdf's, there is no tool to enlarge them (that I have
Dave,
The 'cane metal' cover over the variac for safety is a nice touch
klc
- Original Message -
From: Dave Aabye <[EMAIL PROTECTED]>
Date: Sunday, February 25, 2007 8:48 am
Subject: [AMRadio] Gates BC-1 Info
To: Discussion of AM Radio in the Amateur Service
> Good Morning AM-ers:
Don,
The link should be to a thumbnail pix page, index.
If you click on the image it will bring up a medium size image. Then another
click on this image should bring it up to full size.
At least it does that using the normal windows explorer browser.
Bill
KB3DKS/1
___
[EMAIL PROTECTED] writes:
> I still suspect a phasing problem, perhaps a double error.
I know what you mean, but I did use a dual-trace scope to confirm that the
grids of the push-pull 1st audio stage are getting signals that are 180 deg out
of phase from each other. I will do the same on the
I just confirmed that the grids of the 833s are indeed being fed 180 degrees
from each other. One signal had more RF from the driver (only low B+ was on)
than the other, but otherwise all seemed normal.
Steve
**
AOL now offers free email to everyone.
Hmm... you may have shorted turns in the modulation transformer, but it is
difficult to know without terminating the secondary with a resistive load,
and measuring the power output. I would assume the transformer is the
correct part and hasn't been subsituted somewhere along the way.
Frustrating!
At 03:34 PM 2/25/2007 EST, you wrote:
>
>I just confirmed that the grids of the 833s are indeed being fed 180 degrees
>from each other. One signal had more RF from the driver (only low B+ was
on)
>than the other, but otherwise all seemed normal.
>
>Steve
>
>
>
>
Howdy, Steve!
OK. Thinking ahe
I have a couple of items for sale.
Dentron Super Super Tuner. 160-10AT rated at 3 KW for SSB
which should handle full output on AM. It looks good with
just a few scratches on the case. $175.00 plus shipping.
Shipping weight is approximately 23 lbs.
Bird 4411 wattmeter. Reads peak power for
Deep in the bowels of my junk I found some resistors for a test of the whole
modulation section of the Gates BC-1T. I put five large-ish (each like a roll
of quarters, maybe 50 watts?) 800-ohm wirewounds in series across the
secondary of the modulation transformer. Thaty would seem a good loa
[EMAIL PROTECTED] wrote:
Deep in the bowels of my junk I found some resistors for a test of the whole
modulation section of the Gates BC-1T. I put five large-ish (each like a roll
of quarters, maybe 50 watts?) 800-ohm wirewounds in series across the
secondary of the modulation transformer. Th
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