Help File

Iinitially the difference between Electro and Electronic is discussed

Either labelled as such or contains scales such as:
Motor/Dynamo scales
Motor / Dynamo gauge marks
Specific Power System Scales e.g. Voltage drop, capacitance and Inductance at Power System Frequencies
Either labelled as such or contains scales such as;
Specific scales for Frequency, wavelength, dB loss etc.
Resonance and/or reactance scales
If a rule contains combination of scales from both Electro or Electronic scales, I would defer to the manufacturers labelling or if no such distinction was made, I would label the rule as Electro. Electrical scales predated electronic so one could assume the rule was initially designed with Electro applications in mind and Electronic scales added.

Now we briefly discuses the use of the Search Facility.


1. Insert "aristo", without the quotes, into the first field and click "Search".

All entries with "aristo" in one of the fields mentioned above will be displayed.

The search string is not case-sensitive so any combination of upper and lower case characters may be used.

2. Now insert "81", without the quotes, into the second field and click "Search".

Now the output shows those records containing both "Aristo" and "81".

3. The "BUT NOT" search facility was provided to maintain compatibility with other
Search Engines I have created. The database we are using here is very small so that
this facility is hardly necessary. However, a simple example is now given.

To output only the "Electro rules Insert "electro" in the first field and "electronic in the fourth field - the BUT NOT field - and click "Search".

4. A "." may be used to select any character, Thus "hemmi 8.k" in the first field will have the expected effect.
Any number of "." may be used, each representing one character.

5. Care must be exercised when searching for scales. There is one space between every item in the search pattern and this must be provided in the search string.

Thus "A = B BI CI C" would be provided in the first field.

Back to Search

Created by Rod Lovett