Products of Jenna Design

CoilBuilder_99 1.0 Jenna Design 

Multimedia \ Drawing and CAD

CoilBuilder_99 is a powdered iron inductor winding application. Enter desired inductance, select core size and mix and press the Calculate button to determine the correct number of windings for your inductor. Data is also given showing, core color, permeability, frequency range, AL value and maximum number of turns versus wire guage for the chosen. Freeware download of CoilBuilder_99 1.0, size 45.09 Kb.


   
 

Resonator 1/23/1999 1.0 Jenna Design 

Multimedia \ Drawing and CAD

This application calculates the inductor and capacitor values for the tank circuit of a simple bipolar transistor RF amp. The basic schematic is shown above. Enter the center frequency plus the inductive/capacitive reactance you desire and press the Calculate button to calculate the necessary inductance and capacitance for L and C respectively.. Freeware download of Resonator 1/23/1999 1.0, size 20.97 Kb.

HF Dipole 2/9/1999 1.0 Jenna Design 

Multimedia \ Drawing and CAD

dipole antenna. Program good for 1 - 500 MHz, although intended for MF - HF useage. This app does nothing more than the standard 468/freq (MHz) type calculations. It was written for DOS many years ago and ported to Windows.. Freeware download of HF Dipole 2/9/1999 1.0, size 22.02 Kb.

NPN DC-BIAS 16/04/1999 Beta Jenna Design 

Multimedia \ Drawing and CAD

This application calculates the various voltages and currents of a simple voltage divider bias NPN bipolar transistor amp. The following is calculated: IB, IC, IE, VE, VB, VC, VCE and detection of Saturation or Cutoff. The user can alter the VCC, VBE, transistor beta and any of four resistor values R1, R2, RC and RE by picking the transistor value. Freeware download of NPN DC-BIAS 16/04/1999 Beta, size 31.46 Kb.