Jon Chandler wrote:

> Gerhard Fiedler wrote:
>> Jon Chandler wrote:
>>   =20
>>> Some examples of schematics from the mid 40's can be found in the
>>> Weston Engineering Notes I've posted here:=20
>>>=20
>>> http://www.clever4hire.com/throwawaypic/home/weston-engineering-notes
>>>=20
>>>=20
>>> Resistors and capacitors are according to Olin's "standard."  I'm
>>> not sure about inductors.  Transformer windings are shown as coils
>>> but in a quick scan I didn't see any clear inductor examples.=20
>>>=20
>> I think it's a pretty safe bet to assume that a reasonably consistent
>> schematic that uses zigzag resistors also uses half-circle or loop
>> coils. I have never seen a schematic with solid rectangle inductors
>> that didn't also use rectangle resistors.=20
>>=20
>>> In one place it looks like an inductor may be shown more like a
>>> resistor.....
>>>     =20
>> Where's that?
>>   =20
> On page 6 of the 5th issue from 1946, a current transformer is shown
> where the windings seem to be represented more like a zig-zag
> resistor.

Ah, yes... I'm glad we're (mostly) past that stage with standardization.
If they hadn't written what it was meant to be in text... :)

Gerhard
--=20
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