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Thanks for the answer.? That is what I expected but needed and expert opinion.? I don't mind the problem with the A5 ROM because it will probably need replacement anyway for battery problems.?

Here are some manuals I saved from the heap over the years. I don't need them, do you? Strongly prefer local pickup (I'm a bit north of Boston, MA) but will ship by Media Mail within the US.

OT: Although not all that one might want for calibrating scopes, a good start would be a reasonably good Rf signal generator, not necessarily PG or SG modules ... Some sellers on eBay appear to

It will give you a full featured 2465B, not a poor man's one. All parts other than A1 board and front panel label are exactly the same for 2445B and 2465B. Ah, the A5 ROM is different too. --- *

That (and price) is why I guess I don't have either. Oh well. Do have the PG506 and TG601, as well as an SG502 and 503. The 504 has eluded me. Harvey

Also add the TG-501 Time Mark Generator. I have some of those and the TM-50n Power Supplies for them. Someday I'll get tired of looking at them and sell off the whole lot. 73, Dick, W1KSZ

Yes, that is what I meant by “build” DaveD Sent from a small flat thingy

Errm no. Those need a Pulse Head - no kit for that, and the SG5030 needs a levelling head - sadly no kit for that either. David

Though you can make a levelling head... See: < http://www.perdrix.co.uk/SG504Head/index.htm> Cheers Dave Partridge

Just noticed a previous wrinkle here, so I'll document it to avoid confusing someone else when reading this thread in the future. Even though the graticule has 10x10 divisions, the 1969 catalog tells

Without considering price in particular, you may want to check the CG501 (TM500) and the CG5001 (TM5000). These combine the functions of the PG506 and SG5xx series. However, they need a leveling head

If you do buy an SG-540, make sure that it comes with the leveling head. If it doesn’t, you’ll have to buy or build one. The generator is not much use without the head. DaveD Sent from a small

As far as I know, the PG506 calibration generator and SG504 leveled sinewave generator would be the ideal choice. They're compact and serve many of the purposes. The SG504 has a level output up to

Sorry all, I should have searched first, and asked later.... By now I found several member messages about replacing them by lower number chips with good results, like a -02 replaced by a -01, like

Hi all, My 2465B was working perfect yesterday, but today at Power-On it gave a "Test 05 Fail 24" error. I followed the troubleshooting flowchart that led me to checking the signal at pin 28 of the

I read that a double balanced mixer like this one suppresses the fundamental frequencies of the LO and AF frequencies and only leave the difference or additive frequencies to output. Now it makes

I have an old A1 board with part number 671-0722-02, with a date of 1987 (design or manufactured?). I believe this part number is for a 2465B oscilloscope. Also, I can obtain a non-working 2445B for a

Tektronix wrote a series of 10 app notes pertaining to photometric measurements. The App Notes are as follows: 60-W-5750 58-A-2635 58-A-2702-1 58-A-2704-1 58-AX-2764-1 58-A-2912 58-A-2926-1

To: [email protected] Sent: Friday, March 2, 2018 10:29 AM Subject: Re: Analog computing, X-Y display, was Re: [TekScopes] Wanted: Tek 503 Toby, Also checking out Rolynn's suggestion of a 602 or 604

I decided to chase down the missing LO signal coming into the mixer. The oscillator signal is correct all the way through to U1040 output 9 at 10MHz. The output pin 12 of U1042A JK Flip Flop is divded