Display # 
EL84 x 6BQ5 (Q101E) 08 September 2020
Neon Lamp Consumption (Q102E) 08 September 2020
Buying Batteries Correctly (Q103E) 08 September 2020
Parallel Resistors - Heating (Q104E) 08 September 2020
Series Resistors - Heating (Q105E) 08 September 2020
Removing Acoustic Feedback (Q106E) 08 September 2020
Higher Gain Transistor (Q107E) 08 September 2020
Old Tubes (Q108E) 08 September 2020
Turning Off SCRs (Q109E) 08 September 2020
Weak tubes (Q110E) 08 September 2020
4 or 8 ohm speakers (Q111E) 08 September 2020
Tweeters and Capacitors (Q112E) 08 September 2020
Leakage in Components (Q113E) 08 September 2020
Time a capacitor can maintain its charge (Q114E) 08 September 2020
Precision Resistors (Q118E) 08 September 2020
Old Appliance Diagrams (Q119E) 08 September 2020
Welding Toxicity (Q120E) 08 September 2020
Tinned and Tinless Wires (Q121E) 08 September 2020
Testing Electronic Ballasts (Q122E) 08 September 2020
Using Bike Dynamos on Alternative Sources (Q123E) 08 September 2020
Power Swing When I Turn on the Shower (Q124E) 08 September 2020
Ground Bar (Q125E) 08 September 2020
Dimmer on Amplifiers (Q127E) 08 September 2020
1N4007 Diode replacing the 1N4002 (Q128E) 08 September 2020
Testing Integrated Circuits (Q129E) 08 September 2020
Direction Control For AC Motor (Q130E) 08 September 2020
Shower Dimmer (Q131E) 08 September 2020
AM FM Stereo Radio Mounting DU175S Q131E (Q132E) 08 September 2020
IF Coils and Transformers (Q133E) 08 September 2020
Changing a Coil to Increase Frequency (Q134E) 08 September 2020
Distorted Sound When Powered By an External Source (Q135E) 08 September 2020
Magnet Fields (Q136E) 08 September 2020
Tube Literature (Q137E) 08 September 2020
Maximum Current of a Transformer (Q138E) 08 September 2020
Tube Courses (Q139E) 08 September 2020
Incandescent Lamp Power (Q140E) 08 September 2020
Power of a Speaker (Q141E) 08 September 2020
More Power For FM Transmitters (Q142E) 08 September 2020
Voltage Multiplier for 100 kV (Q143E) 08 September 2020
Buy Projects (Q144E) 08 September 2020
Recharging Common Cells (Q145E) 08 September 2020
Cell Phone Interference (Q146E) 08 September 2020
Metal forms for coils (Q147E) 08 September 2020
LEDs in Alternating Current Circuits (Q148E) 08 September 2020
AC Motor Speed Change (Q149E) 08 September 2020
Power of an Amplifier (Q150E) 08 September 2020
50 Hz to 60 Hz motor (Q151E) 08 September 2020
Hearing Aids (Q152E) 08 September 2020
Linear or Log (Q153E) 08 September 2020
Oscillator For Digital Clock (Q154E) 08 September 2020

Circuit Bench