![]() But once upon a time, it was just Odyssey tapes, Odyssey at 4:30 on the radio, Odyssey before bed and on car rides, and, later, Odyssey on message boards and at events. Lately, it’s gotten harder to separate the AIO from the FOTF. A college roommate was vocal about her dislike for Focus on the Family, but made an exception for AIO.Įven when I was jumping at the chance to be an intern for my beloved radio drama, back in the day when I believed what everyone I knew growing up believed, I was still taken aback by the interview question asking “what my opinions were on the five major issues most important to Focus on the Family.” I bumbled through the answers I knew they expected of me, without much thought as to whether they were really my answers. I do know that I’m not the only one who has been able to partition the two, approving the one and rejecting or ignoring the other. But that’s another topic for another time. Jesus, however, wasn’t always entangled in Christianity, especially not Christianity as we know it today. Odyssey was birthed from Focus on the Family and, like it or not, is a product of its parent organization. “Whit’s Flop,” that very first episode, aired one year and four days before I was born, and all my life the show and I have been moving in tandem toward our own milestones.Ĭan I say I like Odyssey but not Focus on the Family, as I would say I like Jesus but not Christianity? The story, set in the small, Midwestern town of Odyssey, is bookended by a skit with the show’s host, Chris, who tells a story about Abraham Lincoln to reinforce the theme. On this day in 1987, a 25-minute episode aired about a boy named Davey who feels like a failure until kindly shop owner John Avery Whittaker (“Whit”) helps him realize his worth as they invent something that goes wrong before it goes right. In conclusion, by using the test setup in Figure 3, it is equivalent to a very high power function generator.Adventures in Odyssey ( AIO or Odyssey for short), Focus on the Family’s seminal children’s radio drama, turns 30 this year – today, in fact. This is accomplish by setting the external DC voltage to 100V, set the TS250 gain to 20dB, and set the function generator voltage to 8Vpp (+/- 4V). This is same as 60V to 140V sinusoidal swing voltage. For instant, a piezo transducer requires a 100V bias DC voltage as well as a 80Vpp sinusoidal. The AC amplitude is set by the function generator and the TS250/TS200 gain. The amplifier driver produces the AC voltage signal. To produced the required waveform, the external isolated DC power supply is used to set the DC or nominal voltage. ![]() The external bypass capacitance must be high enough so that its impedance is at least ten- times lower than the UUT input impedance. Using low ESL and ESR ceramic capacitors is the best, but a combination of tantalum, electrolytic, and ceramic capacitors are okay. Multiple capacitors with various capacitance that are connected in parallels offer better frequency response. This is especially true for high frequency waveform. Adding additional external bypass capacitors is recommended. The voltage seen by the UUT is the VDC plus VAC voltages.ĭC power supplies have internal capacitors. Lastly the DC power supply’s positive terminal is connected to the unit- under- test (UUT). The AC waveform driver’s positive terminal is connected the DC power supply’s negative terminal. ![]() The system GND node is in common with the function generator GND as well as the UUT ground. ![]() The TS250/TS200 driver’s negative terminal is connected to the system ground. As depicted in Figure 3, the high- current driver amplifier is series connected with an isolated power supply. You would need a signal generator that can output 600 watt power.īy the use of the TS250/TS200 Waveform Amplifier and an isolated DC power supply, a high- current and high voltage function generator is achieved. To fulfill this requirement the function generator must be able to output 100V and 6A. The unit under test (UUT) has large input capacitance and at high frequency (100kHz), it will required +/- 6A current. For example, in power supply ripple testing applications, the DC input may be up to 100V, but the input ripple voltage required for this test is only 1Vpp. In such applications, this requires high DC bias voltage, but low DC current. Some test applications require high DC bias voltage.
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