Leader LBO-526 Oscilloscope.

You should try search engines it took me about 10 seconds to find this and there are others:

Manual

Good morning, gentlemen;

Boy, was I surprised to see a question here about a user's manual for a Leader 526 dual trace 60Mc oscilloscope. That is not something that I expected to see on an RV or motor home forum.

I will admit that there is a lot of Tektronix, General Radio, Hewlett-Packard (before Carly Fiorina), and other stuff around here. It is very encouraging to learn that there are people here on this forum who will recognize what I am talking about if I fall back into my old ways and begin talking about things that travel only in wires or through the air (or is that in the ether?). See, I never know when I might slip up.

Enjoy;

Ralph,
Latté Land, Washington

I think this forum has evolved into a credible reference for electrical and electronics as related to recreational vehicle use. There have been problems with radiated and line noise especially with PWM controlled devices. I was to say the least surprised when Delco Remy introduced the first OEM PWM alternator voltage regulator in 1979, the 1116405 unit. Shortly thereafter Frank Oropeza of Transpo Electronics adopted PWM and FET driven regs all across the board. Diagnostic and R&D skills had to evolve. I have one of the first 4-channel 100MHz Tektronix units. I wish it had plasma instead of color CRT. A Lawrence Livermore gift.

You'll find a surprising number of hams here too

Found several sources on-line GOOGLE for the Oscilloscope manual...

I used to have a portable Fluke Oscilloscope meter that was great looking at the generator waveforms with. It ran off somewhere along my camping trails... Kept hoping it would show up but never did...

Roy Ken

Fat chance Roy. It's having a grand soireé together with my wallet. I have my scope tied up in 3 trash bags along with a 1 Kg jar of silica gel. I would love to find a bargain on a 5 MHz scope meter.......but...

I would love to try and discover why MoPar thinks a nervous .4vdc hunting is truly necessary on their ECU alternator voltage regulator circuit. Actually a one-minute span reveals an almost 1.0 volt wandering. The dash voltmeter has so much damping it reminds me of a fuel gauge. I love it when I start the toad on a 100F day and for a few seconds I see "15.04" on a DMM. But the nightmare seems to be bullet-proof other than for sheer stupidity of locating the ECU beneath the battery. When I take the toad back to Michoacán a field strip-down, parting of the plug and socket and dosing with D100 will be in order. Then comes an array of TVS devices. Good old oscilloscopes a viewport into The Dark Side.

Thanks for the response. I looked at the clicky and it shows the exact image of the Model LBO-526. The one that shows in clicky is Model 522. Maybe it's just a different feature compared to the 526.
However, I searched further and I found one company that make CD's for all manuals (well almost) for every gadget made on earth (I think). It is based in India. . . and I sent them a message.

Thanks again

Leader technical support and service You can probably download the manual direct from them.

Still have my old Tektronix 465 100mhz 2 channel portable scope. Now if can just remember where i put the darn thing?