Gaussmeter and Megohm meter

[stingray_65]

I was at one of the antique stores here in town when a guy came in with a box of electronics stuff he said was his dad's who was a amature radio hobbiest.

Well antique store are a far cry from a pawn shop, which I think he was looking for.

I got a few odd tubes a bunch of AARL manuals, but I realy couldn't keep my eyes off the meters.

so for $10 for the box I took it home and and got an

 AEMC model 1026 megohm meter    http://www.professionalequipment.com/aemc-digital-megohmmeter-1026/megohmmeter/?source=pegs

and a Lakeshore model 410 Gaussmeter http://www.lakeshore.com/mag/ga/gm410po.html

Looked them both up and they seem like some high end equipment from thier prices. but I haven't a clue to any practical use I might have for them.

do they have a practical use on my bench?

what the heck does a ham radio operator have use for a gaussmeter?


what uses would I have playing around building amps?

Thanks

[ChrisK]

I dom't know about the gaussmeter but the megohm meter is usefull for testing for insulation leakage resistance, ie: winding to winding and winding to frame of a transformer that you suspect is shorting outor those old fishpaper circuit cards in fender ampliffiers that you suspect are becoming conductive.  They do a much better test because you test at high voltage (250, 500 or 1000 volts) compared to the 1.5 volt of a VOM which may not be enough to cause the leakage or flash over experienced in HV application.

Another thought is testing tube sockets after you have cleaned and retensioned them.

[sluckey]

I still use an old Biddle megger (hand crank) for measuring transmission line insulation resistance. Also useful for fishing! Don't know if that digital will catch any fish though.

[jjasilli]

Biddle megger (hand crank) . . . Also useful for fishing!

If you're after mega fish:  http://www.google.com/search?q=megafish&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA_en

[sluckey]

Whoa! Don't think my Biddle would be effective with those fish!

[stingray_65]

So the megohm meter can stay, turns out it has a volt meter ac/dc to 1KV and a very sensitve ohm meter up to 4K.

Think that the gaussmeter could be useful for locating Iron on a chassis?

Not that I've had issues I think before, but I HATE to put something like that I couldn't afford on eBay only to find out I NEED it the next week.

Thanks