Dave, Colin, Thanks for the replies. I also found (and lost the auction for) a 475A on eBay that showed the ground wire adapter in a bag of "accessories" so it was clear that this was original

snapdiode added folder /pickup devices for vey-low-frequency reception

I just scanned in something that looks like the structure inside the P6042 head. I am puzzled why scanners don't have a "flip every other page" option, when you scan a book you have no choice but to

With this problem, I always use my Variac to generate sufficient AC voltage to the input of any DUT, noting the minimum VAC it takes to activate the DUT. Absolutely ZERO guesswork, when using this

Yup,I (banana plug with small knurled end) have one and it is listed in the Tek 468 Scope manual as; "adapter, Ground Wire .......134-0016-01" So you finally decided to give the post a pull

I have two 475As and neither have anything like you describe. They both have an banana-socket earth-point just to the left of the bottom left screw holding the CRT bezel in place. However, I have a

Well, I was just quoting from this message: "Just DL the complete book in PDF at this site; https://archive.org/details/keller1991cathode-ray/mode/2up It´s opensource so free for everyone

Hello Dennis, I have tried to e-mail you offlist multiple times asking for the dude's contact data, but got nothing. Can you please send it to me? Tam -- - - - - - With best regards Tam

Þann lau., 14. nóv. 2020 kl. 05:32 skrifaði Rogerio O <rodd414@...>: The only damage that could happen is CRT burn. If the beam intensity is still under control or low/none, you’re fine.

TekWiki solves! http://w140.com/tekwiki/wiki/7L5/Repairs Jon

Since I will have to wait for the Mouser parts to arrive, I intend to follow your suggestion to measure the voltages drop across the DAC resistors. Can I turn the scope on without U2521/U2420 soldered

Rebonjour, many thanks for the tip on knob/encoder removal. I have a second unit that is much worse, on both shaft encoders, I shall try the right angle PosiDrive to remove the encoders. The

The "hook" that people have mentioned a couple of times is the nickname for the step response artifact caused by a dispersive dielectric. If you adjust the compensation so that the rising edge peaks

Never saw a Lavoie when I was in USAF (61-65)..spent about a year and a half curled up in the "wine celler" on the B-52 tweaking alignments on the terrain avoidance computer with a trusty tek 545

The transformer was probably ferroresonant. It would compensate fairly well for line voltage variations, but would not regulate or stabilize the voltages produced by the secondary windings. Also, the

Hi Brad, That salvage yard was Eli Heffron (and sons), perhaps? Brings back fond memories of piles of mystery electronics. —Cheers, Tom Sent from my iThing, so please forgive typos and brevity.

greenboxmaven via groups.io wrote on 11/13/2020 4:17 PM: <snip> Hello-- Suffering from a bad case of Tektronix lust in 1968 and not having much cash, I bought a bargain-priced Lavoie LA-259 (?) 

Shaun M added the album RIFA Capacitors Visual Inspection: Visual Inspection and documentation of RIFA Safety Capacitors. Macro to 50x including LPI (Liquid Penetrant). Shaun Merrigan The following

Thanks very much for that information — I did not know about the switch to polysulfone. Good to know! —Cheers, Tom Sent from my iThing, so please forgive typos and brevity.

Ed, ISTR the attenuator boards in a 465 (670-2434-01 I think) started out as PPO then there was a wiz article and a switch to polysulfone. As mentioned, melting point was part of the culprit. The 2