One of my first programming projects was a RCA 1802 micro replacement for a
ware-able Holter monitor. The idea was to record a series of 8 second strips
and assign a value of how important they were. This value was used to decide
which ones to save for later viewing. The area under the curve
I picked up two of these units and they were a very good deal. Don, thanks
for finding and reporting them. I wish I had picked up a few more of them.
Inside, there is a four output switching supply with +/-12 and +/-5 volts.
If it were possible to cut away some of the main board that includes
I haven't looked any further but the daughter boards
in the unit have 75 ohm resistors which I'm guessing
determines the input/output impedance of the unit.
If that's the case it should be easy to switch it to 50
ohms although it may not make any real difference.
-Arthur
Arthur the video equipment is 75 ohms. This is time-nuttery after all so
they do make a difference. Small.
But I will never change my 75 ohm resistors out not worth the time and
effort by the way I also use 75 ohm cable for Freq distro.
But if someone really has nothing better to do then sure
Hi
Be careful with the BNC connectors on those switches. 75 ohm BNC's aren't
the same as 50 ohm connectors. The inner contact is different enough that
they don't always play well together.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
I've been known to just stack a 150 Ohm 1% chip resistor on top of a 75 Ohm
chip
resistor to bring the result down to 50 Ohms. Beats having to 1) remove the old
part, 2) clean up the pads, then 3) get the new one soldered down.
Bob L.
From: Arthur Dent
Good point Bob the 75 ohms are smaller in diameter. I use 75 ohm connectors.
The 50 into a 75 hole spreads the jack.
Regards
Paul
WB8TSL
On Thu, Feb 21, 2013 at 4:16 PM, Bob Camp li...@rtty.us wrote:
Hi
Be careful with the BNC connectors on those switches. 75 ohm BNC's aren't
the same as 50
I don't have the manual source offhand, but it will be in my msg
archived. The RS232 does respond, and can also be used to control the
unit I have. I got a nice note from the seller; apparently the time-nuts
snatched these units up in less than a day...and it was the seller who
put me on to the
Update: The manual is at:
http://pdf.textfiles.com/manuals/STARINMANUALS/Altinex/Manual/Archive/Home%20Run%20(HR)%20Series.pdf
Just verified, and it's still there.
Don
Don Latham
I don't have the manual source offhand, but it will be in my msg
archived. The RS232 does respond, and can also
Don;
I got one of those switchs;*very* nice product, great price. Wish I'd
bought two!
Do you have a reference for the mating connector for the RS232 by any
chance?
JimT
Sent from *my* galaxy (Nexus).
On Feb 21, 2013 4:13 PM, Don Latham d...@montana.com wrote:
I don't have the manual source
Hi folks,
I picked up a used TS-2100L for use at a local technology museum. Unit
powers up, locks, and syncs. (all three front panel LED are green)
Using wire shark I can see traffic to the device on 192.168.56.99,
however I can't connect to the management page.
Any suggestions on how to
Hi Jim: I had to make up a little 3-pin to 9-pin adapter using loose
pins. It just kinda hangs there...
Don
James Tucker
Don;
I got one of those switchs;*very* nice product, great price. Wish I'd
bought two!
Do you have a reference for the mating connector for the RS232 by any
chance?
JimT
On 2/21/2013 10:05 PM, Martin A Flynn wrote:
Hi folks,
I picked up a used TS-2100L for use at a local technology museum. Unit
powers up, locks, and syncs. (all three front panel LED are green)
Using wire shark I can see traffic to the device on 192.168.56.99,
however I can't connect to the
In general, no, they are not. The connector pins for modern 75ohm
BNC's are exactly the same part as for modern 50 ohm BNC's. The BNC
gets the higher impedance inside of the connection area by removing
most of the inner dielectric.
The real problem child, in general, is the female 75 ohm N
Use the buttons on the front panel to drill down into the setup menu
and find the dhcp setting.
Have fun
On Thu, Feb 21, 2013 at 10:05 PM, Martin A Flynn mafl...@theflynn.org wrote:
Hi folks,
I picked up a used TS-2100L for use at a local technology museum. Unit
powers up, locks, and syncs.
Hi Chuck,
some early 75R BNC designs did use a smaller diameter center contact. The 75R
male can make intermittent contact when used with a worn or top of limit 50R
female. The 75R female can be damaged for use with the small contact male if
used with a 50R or large contact 75R male. The do
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