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I wonder why the LM311 failed. They are suppose to have fairly rugged outputs. I have picked up a couple "We don't know how it works, so it's being sold As-Is" items that either worked perfectly if

I remember the thread where this was discussed. If an SW06 was used to replace the LF13333, then I think the timing problem could be fixed by altering capacitors C2310, C2400, and C2300 a little bit

Okay, here's my report on the loss of center frequency on a 7L13 plugin (digest #7424), albeit a bit late. I had to put together a parts order (Thanks to the tip from 'crippo2', Vernonia Northern,

Today the Pulse Gen come to live, after replace the weak Q100 transistor by selected from what ever transistor I have in my shop..the winner was a npn switching "MPSH10". The rise time seems to be

Thanks for that tip. If I graduate from the camera, looks like an NI board is indeed a good option. Unless the homebrew USB solution published in Elektor deals with this. I'll have a look later. /m

Google ibnotify()

If you don't care for the programming model you use, the POS prologix usb adapter ought to be just fine. but if you care about knowing when a device pulls-up the SRQ line in an asynchronous manner

Where do I find the 2465B restoration pdf? Thanks. Steve

Put a drop of oil on the shaft near where it enters the pot. I use PB Blaster penetrate oil. In 15 minutes, the thing will be like new. Tom

The price difference is because the AT-GPIB/TNT is an antique ISA board that's compatible with fewer PCs and operating systems. $100 would be a good price for an NI PCI-GPIB board. -- john, KE5FX

David would that be a PCI-GPIB IEEE 488.2 183617K-01 Interface Card or a AT-GPIB/TNT IEEE 488.2 card? The former is ~100 USD and the latter ~30 USD. It seems my workstation can handle another card..

Because I needed one of those 1/8" plastic flex joints recently and did not have one, I extended an .050" hex wrench today and changed those couplers on a 465. I replaced the two flex joints with two

But stick with a real LF13333N if you can. The alternative isn't as good for this application (I don't think it turns on as rapidly). Dave

On 03/15/2013 02:37 AM, Mark Wendt wrote: > On 03/14/2013 03:18 PM, John Miles wrote: >> >> >> Actually the software's free from http://www.ke5fx.com/gpib/7470.htm >> . I was using a 2430A when I

I've also been known to replace the fiberglass with a normal grocery-store style wooden skewer. Then ones I have are exactly the same size. Respectfully, Cliff White, W5CNW

There are two versions of board A29 divided at 7854 serial number B085124 and below but the schematics are basically identical. DG181 is the part number used for a bunch of the analog multiplexors.

I'm thinking of buying the parts to refurb my 2465A, but I wanted to know if the parts documented in the 2465B restoration PDF have a good chance of being the same. The service manual I have does not

Thank you for all the suggestions. I think I will try the tubing. With a bit of luck, might even be able to do it a part gripper and not need tearing down down the scope. Now to find a cover... -d

I'm sure I'm being a dummy, but I suddenly am getting no signal continuity through the spring hook tip when placed on one of my P6133 probes. I'm just about certain I used this same spring clip on

I often use silicon fuel tubings as used for miniature (1:8) petrol racing cars. Make sure the inner diameter is small enough to give a tight fit and use length of 1 - 1.5", so it won't slip. Wall