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But why? (Surely, frames didn't leave the factory, with miswired phasing [it's been mentioned plug-in were non-disposable back in the day!] ) And as to all the gremlins, re-arranging the wiring,

Yes, ?I once bought some crystals for an HP3456A from krystaly – I found them helpful and easy to deal with. Regards Kerry From: <[email protected]> on behalf of Tam Hanna <tamhan@...>

It's using the RKM code convention (and IEC thing, IIRC). Your guesses were pretty good. 4L0 means 4 milliohms. --Cheers Tom -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 350 Jane Stanford Way Stanford

It could be a 4mR resistor. ROHM makes SMD shunt resistors in that range. "4L0" would indicate a 4mR resistor, 5% tolerance in the PMR Series. See the datasheet here:

Please add me to the list of participants.

I have a battery BMS that I am reverse engineering. I have a resistor with a code that I have never seen and cannot find any information on. The resistor is a SMT device marked 4L0. The L appears to

My perspective being an electronics, amateur radio and RF engineering born again newbie with more from a chemist, with a chemometrics, programming, lab qualification/validations and leadership

I should mention one other thing.? To make the inboard power supplies more possible, and to remove heat from the module, TEK put in a general purpose PNP power transistor and a general purpose NPN

I'm also very interested, but pulling the trigger does depend on the approximate price. Dave S.

Larry With the greatest respect, you're putting the cart before the horse. You have ten committed purchasers, and I am sure many more like me who are waiting to see the price. So why not get a price

Thank you very much, Harvey, for that great historical summary! — Happy New Year Tom Sent from my iThing, so please forgive typos and brevity.

Ok, perhaps I can clear up a bit of this. Remember that in the 70's to 90's (roughly) there were no (to speak of) FPGA IC's so digital design was lots of 14, 16, 20, and maybe 40 pin chips, depending

I have one of the originals, and it is almost certainly "Tek" built as opposed to built from the plans. For one thing, it has a Tek serial number label and silkscreened front panel. Dave Casey

I believe the notch filter could be built in any form factor. IIRC it does not use power from the mainframe, so there's no reason it has to be in a TM-style enclosure. Dave Casey

TM500 - Ok, it fits a very large set of modules. Why? Are there modules that do things that can only be done using a particular module? Yes, I could read the specs for dozens and dozens of the

Good thing! :DLOL!? ?Happy New Year, everyone!? ? ?JimSent from my Verizon, Samsung Galaxy smartphone

We had a 1000-foot spool. Thankfully, the label specified that it was a single cable with no breaks. RG-59 I think. I do not recall what the prop delay was, but it was sort of measurable. I recall we

hi Miguel, really interesting, but first I have to recover the 52.5 MHz crystal to convert the TR503 to TR502. Among other things, the TR503 does not have the logic interface (the one connected to the

I have the original power cord for my 513D, and it is a 2 pin round bodied "extension" cord, of a type that was popular in the late 1940's. The instruction manual clearly indicated that you must

Note that Jared has updated the main PWB Gerber file and the Instruction Manual file; if you downloaded those earlier, you need to get the new files. Jared and I are discussing how best to order these