Tektronix 547 with CA plug-in

B

BFoelsch

Guest
I was looking through some old notes on the Tek 547, and found
repeated references to modifying a CA so it would work with the sweep
switching in the 547. I even have an explanation of how it works from
within the 547 (it uses different pins from the 1A1) but I have no
information about what is needed in the CA to make it work.

Anybody ever heard of this or done it?

Thanks in advance.
 
BFoelsch wrote:
I was looking through some old notes on the Tek 547, and found
repeated references to modifying a CA so it would work with the sweep
switching in the 547. I even have an explanation of how it works from
within the 547 (it uses different pins from the 1A1) but I have no
information about what is needed in the CA to make it work.

Anybody ever heard of this or done it?

Thanks in advance.
It has been ages since i have used the CA; isn't there a switch to
Click to expand...
select Ch1, Alt, Add, Chop, Ch2?
If so, then the Alt position does that for you.
 
"Robert Baer" <robertbaer@earthlink.net> wrote in message
news:SWCYg.7648$Lv3.1081@newsread1.news.pas.earthlink.net...
BFoelsch wrote:
I was looking through some old notes on the Tek 547, and found
repeated references to modifying a CA so it would work with the sweep
switching in the 547. I even have an explanation of how it works from
within the 547 (it uses different pins from the 1A1) but I have no
information about what is needed in the CA to make it work.

Anybody ever heard of this or done it?

Thanks in advance.
It has been ages since i have used the CA; isn't there a switch to
select Ch1, Alt, Add, Chop, Ch2?
If so, then the Alt position does that for you.

I am of course familiar with the "ALT" position on the CA.
Click to expand...

The function I am talking about permits input channel 1 to be displayed
using the "A" time base and channel 2 to be displayed using the "B" time
base. This is the big feature of the 547 and is supported only when using
the 1A1 and 1A4 plugins. I am looking for the official way to modify the CA
to accomplish the same result.

Thanks again.
 
BFoelsch wrote:
I was looking through some old notes on the Tek 547, and found
repeated references to modifying a CA so it would work with the sweep
switching in the 547. I even have an explanation of how it works from
within the 547 (it uses different pins from the 1A1) but I have no
information about what is needed in the CA to make it work.

Anybody ever heard of this or done it?

Thanks in advance.
Click to expand...
I emailed BFoelsch a pointer to information from the CA modification
summary. The modification basically allows you to use A ALT B mode on
the 547 to display the A and B inputs of the CA with the respective sweeps.

Jack Rouse
 
Jack Rouse wrote:
BFoelsch wrote:
I was looking through some old notes on the Tek 547, and found
repeated references to modifying a CA so it would work with the sweep
switching in the 547. I even have an explanation of how it works from
within the 547 (it uses different pins from the 1A1) but I have no
information about what is needed in the CA to make it work.

Anybody ever heard of this or done it?

Thanks in advance.

I have the modification information, about 6 pages. I can scan the page
images in (say) PNG format and email them to you (about 2MB) or perhaps
upload them to a web site. Contact me with your preference.

Jack Rouse
Click to expand...

Why don't you see if the BAMA site is interested in a copy?
<http://bama.sbc.edu/>


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
BFoelsch wrote:
I was looking through some old notes on the Tek 547, and found
repeated references to modifying a CA so it would work with the sweep
switching in the 547. I even have an explanation of how it works from
within the 547 (it uses different pins from the 1A1) but I have no
information about what is needed in the CA to make it work.

Anybody ever heard of this or done it?

Thanks in advance.
Click to expand...
I have the modification information, about 6 pages. I can scan the page
images in (say) PNG format and email them to you (about 2MB) or perhaps
upload them to a web site. Contact me with your preference.

Jack Rouse
 
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