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7854 to 7804N Conversion PCB (K7-1286-XA). TOPIC WAS: 067-0912-00 needed
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Hi Clark,
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No. I have been working on something else I need much more. It will be done in 2 weeks and then I am free to start on something else. I would like to make the 7804 Conversion board but first I need to get 5 other people willing to buy the boards which would help to justify the cost of laying out the PCB and purchasing the PC boards. Dennis Tillman W7pF
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From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Clark Foley Sent: Wednesday, October 21, 2020 12:17 PM To: TekScopes@groups.io Subject: Re: [TekScopes] 067-0912-00 needed Dennis, Did you ever make duplicates of that early 7804N conversion board (K7-1286-XA)? Clark -- Dennis Tillman W7pF TekScopes Moderator
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is that the same as the 7854 analogue test board?
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Is so could be interested - what is the likely price? David
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From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Dennis Tillman W7pF Sent: 22 October 2020 22:28 To: TekScopes@groups.io Subject: [TekScopes] 7854 to 7804N Conversion PCB (K7-1286-XA). TOPIC WAS: 067-0912-00 needed Hi Clark, No. I have been working on something else I need much more. It will be done in 2 weeks and then I am free to start on something else. I would like to make the 7804 Conversion board but first I need to get 5 other people willing to buy the boards which would help to justify the cost of laying out the PCB and purchasing the PC boards. Dennis Tillman W7pF -----Original Message----- From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Clark Foley Sent: Wednesday, October 21, 2020 12:17 PM To: TekScopes@groups.io Subject: Re: [TekScopes] 067-0912-00 needed Dennis, Did you ever make duplicates of that early 7804N conversion board (K7-1286-XA)? Clark -- Dennis Tillman W7pF TekScopes Moderator
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Clark Foley
David,
This board allows you to operate the 7854 as a 7804N. Analog scope functions only and without the readout, hence the N nomenclature. It was created early in the project to allow the analog scope guys to work independently of the digital scope portion. I have one of the prototype mainframes without the digital hardware and this little jewel lets me use the mainframe as a 400MHz scope. The only thing that is peculiar is that the mode control buttons (LEFT, ADD, CHOP....)
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Eric
When using the analog test board it makes the scope function as an Analog
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scope you have to remove all the digital cards to use the analog test board correctly with out bus conflicts. Eric
On Fri, Oct 23, 2020, 7:11 PM Clark Foley <clarkfoley@msn.com> wrote:
David,
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Clark Foley
Keyboard error...allow me to continue
The only thing that is peculiar is that the mode control buttons (LEFT, ADD, CHOP....) require initialization after each power cycle. There is no memory for momentary button. It's a way to put a donor mainframe to use after stripping some of the digital cards or for troubleshooting the analog section. Clark
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Glydeck
Dennis,
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I’d be interested. George
On Oct 23, 2020, at 4:15 PM, Clark Foley <clarkfoley@msn.com> wrote:
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