While looking for the 212 battery end caps I also found what looks like a complete set of boards for a 2252. A few years back I needed crt and I picked up a damaged 2252 for next to nothing. I have

I have found in a box way in the back that contains 14 used battery end caps for a 212 and so forth. 6 black, 7 white and 1 grey. Any body want them? Pay for shipping.

Hey Roger, the DAC takes a reference current as input. It effectively multiplies that current, then diverts it to the two complementary outputs according to a programmed ratio. If the reference input

It may be the dreaded U800 horizontal chip failure. --John Gord

OMG how embarassing! :) Thanks!

All the pots on my scope are AB stackable pots with screws (though some of the screws are blocked by other components on the board, which means that I would have to remove the main board in order to

Team, I am not having a problem with my 308, just that I like to have backup code for the devices I own. I have only had a couple of EPROMs fail in the last 20 years but when you need code there is

The document ID is AX-3535. It is available on the TekWiki: http://w140.com/tekwiki/images/0/04/AX-3535.pdf dan

The Tek App Note AX-2535 is by M. Engelson and is titled "Crystal Device Measurements Using the Spectrum Analyzer". I am usually good about finding web stuff but had to admit defeat looking for this

Jeff- yes and yes. the pot in mine is a AB modular one could be made to be stacked etc. front and rear comes off....IIRC (it was 15 years ago ) I did remove the board to replace the section. I cannot

Renée, so you're saying that this is the pot equivalent of switch bounce? Now that you say it it seems almost obvious, and I was already trying to imagine a way that the pot could bounce like a

Bad news. I tried to adjust the DAC and realized that I could not do it. The maximum positive voltage that I can get is +1.18V while the max absolute value negative voltage is -1.019V. As I have said

Aren't the 2315 and 2364 mask programmed ROMs? Do they suffer from "ROM rot"? Looking at the data sheets, 1) they show no timing diagram or voltage levels for programming the 2316 or 2364, and 2)

Take a look at http://w140.com/tekwiki/wiki/ROM_images, three of the four images are there. I just tried to read out the missing U430 from my 308 with my EPROM programmer but it came back all

The Tek cross-reference confirms Idss between 10 and 30mA. Vp max 4.5v. Gm 6000 µMho. Linear Systems site indicates J310 equivalent in TO-92, "U/J/SST308

Hi Jeff- I surmise that upon quick rotation the wiper is skipping across the resistive element causing intermittent opens hence the full beam brightness. on my 475 I replaced the pot element since it

The beam intensity adjustment on my Tek 475 appears to have a bunch of spots along the first 30% of its travel where it jumps from near zero intensity to full intensity, but the "jumps" only occur if

Well that just varies all over the place. With ATT and Comcast I only had to send an email to tech support to get a reverse DNS put in. I use a VM service now where you have that entirely under your

Hi Toby, Are you looking for a GPIB to Printer adapter? if yes,there is one on ebay. search "gpib to printer". Jack

Many JFET types should work fine there, but the trick is to get the right actual Idss so the DC bias conditions will be normal. Look at the Idss range specs for any candidate, versus the original