Stan or Patricia Griffiths <w7ni@...>
I have made a few comments below:
Michael Dunn wrote:
Geez, somehow I've ended up with three 1GHz sampling plug-ins.I haven't ever tried this so you could be right . . .
Newly acquired is a 3S76 (2-chan!). Does anyone have a manual toCheck out the list on my web site at <www.reprise.com>
Unfortunately, I think it needs a companionThe 3T77 is one timebase that will work with the 3S76. You are right that
there MUST be a sampling timebase to operate with it. Others that will work
with the 3S76 are 3T77A, 3T4, 3T2, and maybe 3T5 or 3T6 (I have never tired
these with a 3S76 but I know of no incompatibility).
Otherwise it's in good shape. Maybe I'll harvestI think the GaAs sampling diodes used in the 3S76 are the same as those used
in a 4S1 but I can't remember for sure. I would have to check manuals to be
sure. I know the ones in the 1S1 have different part numbers but maybe you
could make the 3S76 diodes work in a 1S1. That is another good idea worth
Remember, don't handle the sampling diodes with your fingers. Grease from
you fingers will contaminate them and attempts to clean them with alchohol
have been only marginally successful. Also, don't chip the black paint they
are painted with since this will allow light to reach the junction and that
ruins them also. I don't know the exact nature of the failure of sampling
diodes due to exposure to light but I understand it is permanent. Many
sampling diode problems are related to improper diode handling techniques.
When a technician first hears he can't handle them with his fingers, he uses
his needle nosed pliers and chips the paint . . . then he realizes what those
special plastic tweezers that Tek used to ship with new diode sets are for .
It has TWO connectors on the rear-panel inThe second (vertically oriented) connector is for feeding digital information
to the 6R1 or 6R1A Digital Readout unit when the 3S76 is used in a 567
mainframe. It may also work to feed readout information to a 230 when used
in a 568 mainframe, but I have never tried that combination before. It
connects to nothing when used in a non-readout scope like a 561A or 564.
Or, is there a special cable or board that connects it toNo. It doesn't connect to the 3T77. It connects to a 6R1, 6R1A, or maybe a
230 or nothing at all.
Also new -- a 7S14! A real beauty. Two channel, with timebase.I just haven't ever had a chance to spend any time with a 5S14 so I don't
know didley about it.
Michael DunnI hope this helps some, Mike.