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AmateurLogic.TV Episode 215 is now available for download.

Cutting a 1/4 wave shorted stub. DR Mode travel prep for automatic repeater memories. ATS 20+ Firmware update improvements. Emile’s latest shack update.

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Ham College episode 135 is now available for download.

Technician Exam Questions Part 22.
T7C – Antenna and transmission line measurements and troubleshooting: measuring SWR, effects of high SWR, causes of feed line failures, Basic coaxial cable characteristics, Use of dummy loads when testing.
T7D – Using basic test instruments: voltmeter, ammeter, and ohmmeter, Soldering.

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Ham College episode 134 is now available for download.

Technician Exam Questions Part 21.
T7A – Station equipment: receivers, transceivers, transmitter amplifiers, receive amplifiers, transverters; Basic radio circuit concepts and terminology: sensitivity, selectivity, mixers, oscillators, PTT, modulation.
T7B – Symptoms, causes, and cures of common transmitter and receiver problems: overload and overdrive, distortion, interference and consumer electronics, RF feedback.

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AmateurLogic.TV Episode 214 is now available for download.

Explore OpenHamClock, Raspberry Pi Trixie, and the Choyong LC90 Internet radio. Retain your power pole connectors with a cheap hack. Visit with friends at the 2026 Capital City Hamfest.

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Ham College episode 133 is now available for download.

Technician Exam Questions Part 20.
T6C – Circuit diagrams: use of schematics, basic structure, Schematic symbols of basic components.
T6D – Component functions: rectifiers, relays, voltage regulators, meters, indicators, integrated circuits, transformers, Resonant circuit, Shielding.

This episode of Ham College (0:00-39:27) focuses on electrical diagrams and component functions, which are crucial for the Technician Exam. The hosts, Professor Thomas and Dean Martin, go through several multiple-choice questions related to identifying components in circuit diagrams and understanding their roles.

Key topics covered include:

Circuit Diagrams (2:17-2:25): The discussion begins with identifying a schematic as an electrical wiring diagram using standard component symbols.
Component Identification (4:23-17:48): The hosts quiz each other on recognizing various components in schematics, such as:
Resistors (4:23-5:12)
Transistors (5:23-6:16)
Indicator Lamps (6:26-7:12)
Batteries (7:16-8:26)
Capacitors (8:43-9:55)
Light Emitting Diodes (LEDs) (9:58-11:39)
Variable Resistors (11:49-13:02)
Transformers (13:08-15:02)
Variable Inductors (15:06-16:16)
Antennas (16:30-17:10)
Component Functions (23:36-33:24): The latter part of the episode delves into the functions of various electrical components:
Rectifiers (23:36-24:43) are discussed as devices that convert alternating current (AC) to direct current (DC).
Relays (24:43-25:30) are defined as electrically controlled switches.
Meters (25:30-26:10) are explained as tools that display electrical quantities numerically.
Voltage Regulators (26:11-27:00) are identified as circuits that control voltage from a power supply.
Transformers (27:01-27:56) are highlighted for their ability to change AC voltage.
LEDs (28:25-29:07) are noted as common visual indicators.
Resonant Circuits (29:08-30:16) are explained as combinations of inductors and capacitors.
Integrated Circuits (30:22-31:16) are described as devices combining multiple semiconductors and components into one package.
Transistors (31:20-32:04) are described as controlling current flow.
Viewers are encouraged to send emails to [email protected] to participate in future Icom T-shirt giveaways. Join the Ham College social media groups for updates and community interaction (36:25-38:00).

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AmateurLogic.TV Episode 213 is now available for download.

In another Tales From The Transmitter, George presents RF Burns. Emile is getting back on the air in the new shack. Mike asks Hey What’s That, WISP?

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Ham College episode 132 is now available for download.

Technician Exam Questions Part 19
T6A – Fixed and variable resistors, Capacitors, Inductors, Fuses, Switches, Batteries.
T6B – Semiconductors: basic principles and applications of solid state devices, diodes and transistors.

Ham College 132, titled “Technician Exam Questions Part 19,” focuses on topics T6A (Fixed and variable resistors, Capacitors, Inductors, Fuses, Switches, Batteries) and T6B (Semiconductors: basic principles and applications of solid-state devices, diodes, and transistors) as part of their technician exam pool. The hosts announce a double dose of questions in this episode and will be doubling up on episodes and questions in the coming months until the current technician study guide expires on June 30th, 2026 (0:40-0:52, 47:13-49:15).

Key topics and questions covered include:

Resistors
The electrical component that opposes the flow of current in a DC circuit is a resistor (2:32-3:57).
A potentiometer is often used as an adjustable volume control (5:24-6:20).
The electrical parameter controlled by a potentiometer is resistance (8:28-9:12).
Capacitors
A capacitor stores energy in an electric field (9:37-10:20).
A capacitor consists of conductive surfaces separated by an insulator (10:48-11:36).
Inductors
An inductor stores energy in a magnetic field (11:51-12:24).
An inductor is typically constructed as a coil of wire (13:06-13:42).
Switches
The function of a single pole double throw (SPDT) switch is that a single circuit is switched between one of two other circuits (13:59-15:01).
Component three in Figure T2 represents a single pole single throw switch (21:26-22:00).
Fuses
A fuse is used to protect other circuit components from current overloads (16:49-17:42).
Batteries
Nickel metal hydride, lithium-ion, and lead acid battery chemistries are all rechargeable (17:55-18:56).
Carbon zinc battery chemistry is not rechargeable (19:00-20:52).
Diodes
It is true that forward voltage drop in a diode is lower in some diode types than in others (28:09-29:30).
A diode allows current to flow in only one direction (30:06-30:52).
The cathode lead of a semiconductor diode is often marked on the package with a stripe (37:26-38:07).
Forward current causes a light-emitting diode (LED) to emit light (38:32-39:37).
The names for the electrodes of a diode are anode and cathode (41:15-42:18).
Transistors
A transistor can be used as an electronic switch (32:40-33:50).
A transistor can consist of three regions of semiconductor material (34:16-35:02).
An FET (Field Effect Transistor) has a gate, drain, and a source (35:26-36:24, 40:29-41:00).
A transistor can provide power gain (42:27-43:02).
The term that describes a device’s ability to amplify a signal is gain (43:11-43:53).
The names of the electrodes of a bipolar junction transistor are emitter, base, and collector (43:58-44:46).

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