The Simpson 260

I had forgotten some of these advantages because I have not been on field service in about 15 years, but I always took a 260 with me if I could take nothing else.

Thanks, Phil.

The 260 has a fairly high voltage output on the ohms scale. As a result you can measure or at least test a multijunction High voltage diode, which you cannot do on a run of the mill DMM (DVM).

Cheers

If I recall correctly, it has two batteries for ohms measurements. The low ohms is about 1.5V and the high ohms is about 9V.

I am a bit reluctant to open my meter to check the accuracy of my statement here, so beware.

Oh, then you have a new model./

Build a cart for it, like an old Tek 545 scope.

If you had a DVM, you wouldn't have to open it.

That is IF you have that battery you have to order from the planet Mars.

No, I THINK it is like 22.5 volts.

Well, the one I have uses 1.5V and 9v according to the little sticker inside.

Cheers

The various mutations of the Simpson 260 use a single 1.5v alkaline D cell for the Rx1 and Rx100 ohms ranges. For the RX10,000 range, it uses either 4ea 1.5v alkaline AA batteries, or an alkaline 9V battery. On later models, the 9V battery also powers some kind of overload detector. Some models have a continuity buzzer feature that I think (not sure) runs on the D battery. If you have the appropriate version number, you can lookup the battery arrangement at: It's usually the bottom photograph.

The following has nothing to do with the Simpson 260 VOM. There are some VOM's that used a 15v or 22.5v battery. If you lack connections to suppliers on Mars, eBay carries some suitable clones. For example: (22.5v) (15.0v) For the 15v (Mallory M-504), I sometimes just stack up five CR1025 lithium 3.0v button cells to get to 15v.

Neither is true.

My first DMM was one of these, it used a pair of AAs.

This one uses a single Lithium cell.

A great many DMMs have the battery installed on the PCB and require opening to access it.

This is a safety feature, so the meter cannot be in use when the battery is accessed.

... Phil

The model is 260. I looked inside and it has a D cell and a 9V battery.

No, the 260 has a D cell and a standard 9V battery. Commonly available.

No, moron. If you had a DVM you could measure the useless '260 ohms supply.

Which series? There have been several design changes over the decades. The series is marked on the meter scale.

Series 6.

Plus one can easily check the voltages used on a meter's ohms ranges with an analogue voltmeter.

Plus your idiot comment is ambiguous as to what the "it" refers to.

Piss off.

.... Phil

That is one of the later models. Look at the manual for an earlier model and you'll see other configurations. Series one used a pair of three volt batteries, plus a 1.5 volt cell.

I ran into the exact same issue- measuring resistance of large transformers. The only meter I had that did the job right was the simpson