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If you could check your book I would be interested to know if that picture is actually in it - the copy of it on archive.org does NOT have that picture in it! I suspect there were multiple printings

I think you'll need at least two TS detectors (like maybe the first and last), so you can figure out the actual running frequency and interpolate the rest of the slots. In my readout exerciser, it is

I'll try and get a schematic into the computer tonight and show you what I am thinking of. I wasn't talking about changing the edges of the TS pulses, just my circuit's response to those intentionally

My bad, I thought it was a new topic.

Looking at the waveform picture, I see that you're looking at speeding up the response of the TS detector, which is OK. I think I misunderstood that you were considering speeding up the actual TS

Current mirrors should work fine. I presume you meant to say four PNP transistors for the DAC and level shifting from ground referenced and +5V powered TTL/CMOS. I looked at all sorts of schemes back

The term "rolling" is mentioned several replies earlier (in a post by ditter2 on 11 March 2019) it says the following: Now that I've read it again it sounds like this might be able to be done by hand

Thank you, Ken. This mod kit replaces early-production 500-series selenium rectifiers in the LV supply with silicon. There’s nothing for the HV supply; modded scopes continued to use 5642’s. Sent:

I used a caliper to measure several of my plug-ins, and went with my best estimates based on that, then tested with laser cut non-functional blanks for fit. I only just got the boards back from fab,

The upside-down black and aluminum cylinders look like British 9-pin loctal tubes, or more correctly, valves. The shorter aluminum ones are likely the famous EF50

What do you mean "rolling" on the fingers? Do you mean the notch between 6A/B and 7A/B?

What's the height or rather width you used for your finger connector? I had a similar project for debugging purpose (https://github.com/anotherlin/tek_7k_ext). However, I didn't add "margin" on top

My current prototype does this with 4 NPN transistors sourcing 8-4-2-1 weighted currents into a wilson current mirror, nothing harder to source than 2N3904, 2N3906 and some E96 resistors. Time will

So far, I've been quite happy with all my orders with JLCPCB. The only problem I had were cosmetic, some scratches on PCB. You can have an idea of the board they produce:

Andy wrote: "For instance, my plan for the readout interface is to create an SPI-based sub-system that deals with all the current source and voltage adaptation, so that it could be easily bolted onto

Confirmed, OSHpark doesn't do chamfered/beveled edges, also they don't offer hard gold as a finish, they only offer ENIG, which is not really upto the task of many cycles. For a real run, we'd likely

Does anyone know where I might find a scan of the service manual and diagrams for a Kay Elemetrics 160KE Marka-Sweep generator? I've been through most of the usual and some unusual sources without any

The following files have been uploaded to the Files area of the [email protected] group. * /6127B/docs/Ballantine_6127B_Addendum.pdf (

The following files have been uploaded to the Files area of the [email protected] group. * /Tektronix_492_to_492P_conversion.zip (

I don't know if this helps, but I have uploaded this mod kit instructions that is applicable to the scope File name: Tektronix 040-0395-00 mod kit instructions