Simpson 260-6P multimeter.

[Geordie McBoyne]

I've bought a Simpson 260 series multimeter way back in the 1970s.   The now defunct parts firm Radio Supplies (Hartlepool) was the UK distributor for Bach-Simpson.
The instrument fell into disuse after the Bakelite case was badly damaged, a great big lump of the cabinet was broken off.  However, a clever repair was effected by inserting a piece of 4mm plywood.
Instrument retuned to service.
Recently I acquired another damaged Simpson 260, like the other instrument it is a series 6 model, a 6P.
This time the damage is electrical, most likely because main voltage had been applied on the ohms X10 range.
The attachment lists the components that required replacement.
However the trickiest part of the repair was the overload protection device, a common problem I believe with series 6 models.
So now I how two working Simpson 260 mulitimeters.  
First 260 series multimeters were made in 1940.
Visit:    
http://www.simpson260.com/
First attachment: The recently repaired meter is on the left.

Geordie McBoyne.    

[Murphyv310]

These are good meters, I know Bob has at least one and it was his mainstay meter for a very long time.
I also seem to remember another one of our band using a Simpson too.

[Geordie McBoyne]

The Simpson "260" multimeter is still available in the UK in the form of the 260-8P, but it's an expensive instrument.
Is there still a demand for this type of analogue multi meter?

https://www.coleparmer.co.uk/i/simpson-2...er/2000607

Geordie McBoyne.

[chriswood]

I'm also a user of the Simpson 260 6 and was impressed by its robust construction and its ease of calibration. It has compensation for ageing of the meter movement unlike AVOs of the same period, it is compact and tough. It also interesting that a lot of the early Japanese meters copied the Simpson and Triplett designs, it was not obvious in the UK where the the US designs were rare but noticeable when compared with US designs. The recent history of Simpson is unusual and probably accounts for why they still persist with a quality analogue design after other have given up. In 1985, Simpson Electric was purchased by the Lac du Flambeau Band of Lake Superior Chippewa Indians. The tribal council made the purchase to preserve the existing work force and to create a more diversified economy for north central Wisconsin.
Chris

[Geordie McBoyne]

Testing the Simpson 260-6P. It was found that the reason why the 9volt battery was having a short life turned out to be leakage in the function switch wafers. Seems there was conductive deposits between certain tags. That problem has be sorted and the X100 restance range is working correctly, there was never an issue with the X1 and X10 ranges.
The DC volts range is OK but the AC volts range is reading too high, AC mains appears as on the scale as 450 volts!
So the instrument will be returned to the workshop.

Geordie McBoyne.