axlq wrote:

> Although I'll probably end up getting a digital scale for $30 or so,
> I was interested in this cheap plastic beam balance scale mostly for
> sentimental reasons (because my Mom used one for over 40 years) and
> partly for its engineering simplicity and elegance.
>
> -A
>
> In article >, axlq > wrote:
>> measuring
>> \ cup / sliding
>> \ / pivot counterweight
>> \__/ ____ ____
>> |===============| |=======####
>> balance beam \/


Its been a few years but I recall seeing them in catalogs geared to
science and brain toy type catalogs. Have you tried a teacher supply
store or catalog?