开云体育

I have 3 standard 564B and 3 standard 561A. I also have 2 568 readout oscilloscopes that I haven't had time to work with yet. I've also collected 60 plug-ins of the 2A, 2B, 3A, 3B, 3C, 3S, and 3T

Hi Michael, As much as I love Steven Wright's sense of humor and your contributions to TekScopes we really need to stop the irrelevant chatter. Unfortunately I inadvertently contributed to it this

Well, you can't have everything! Where would you keep it, if you could? ;-) Michael A. Terrell

I'm from Italy. I have two 564, perfectly working. I use them enough - I like their analog storage capabilities. Plugins are 3B3, 3B4, 3A1,3A3, 3A6, 3A72, 3S1, two 3T77, 3T77A. One mainframe was

One thing you seem to be missing is the fact that there is a low serial number service manual, and a separate high serial number manual for the non-A models of the Tektronix 475 oscilloscope. Perhaps

Yes, tin/lead ratio would need to be 63/37 percents (Sn63), which is called the eutectic (Greek for "melts well") ratio.? Sn60, which is 60 percent tin and 40 percent lead, gets a bit plasticity as

Yes.... The one in http://w140.com/tekwiki/wiki/File:Tek564_storage_display.jpg Is mine. ( And a reasonable number of plugins to go with the 564, and a 561B... ) Anyone have a 3B5 they can't

As an particular question ( I suddenly feel somewhat envious of Tim) I wonder if there's a forum contributor in Australia with 564...? Jack

I'm fresh out of boiling oil. Ah, Never did that kind of tin lead plating. I did double sided, non plated through holes, epoxying top and bottom together, then stitched them with #26 wire for vias.

Albert: Measured the 20V supply ... 19.5V at pin 9 of K600. Voltage across R600 is 14V. That leaves 5.5V for the thermal relay with is close enough for the design spec 6V. Based on my crude out of

Adrian, Barry, Raymond, Glenn, and yes, even I am partially to blame, ENOUGH! This has nothing to do with Tektronix. This forum is dedicated to Tektronix. What is so hard to understand about

Tin/lead plating was the most common way back in the 80's. Everything I said below, for gold, was the same, only there was a step where the plated board was dipped in hot peanut oil to convert the

I have a 564b I picked up a month ago with two extra plug-ins.

You can also (as I'm told) do this with tin/lead plating. You need to use ammonium persulphate since that doesn't attack lead or tin. Ferric Chloride or CuCl, nope. Harvey

Scott and Albert: I have removed the K600 relay tube (6NO45T marking on the chassis ... no clear/visible marking on the tube). I applied 6VDC to pins 1 and 6 and although the tube is warm, the N.O.

hi, I am looking for an HP r/332 controller with KB, Mouse, internal CRT that Boots-Up. No dealers, nor companies; individual only. Please contact me off-list (Private). I will pay for

You could replace the amperite delay tube with a modern delay relay with relatively little pain. The problem with them while they are very reliable the available stock of ‘good’ ones is rapidly

Noise is endemic in electronics. It is related to the temperature. The resistors, transistors, etc.. All make a contribution to the noise. The noise of a receiver is set by the noise of the

The service manual has the schematics. This is the 108 MB file. There are no waveforms though. http://w140.com/Tektronix_475_Oscilloscope_Service_Manual.pdf

Tek and HP used the gold plating *as* the solder mask for copper etching. Their process was (approximately): 1) drill plated through holes 2) plate through holes. 3) silkscreen a mask on board that