BradtheRad
Super Moderator
Find latest posts
View Articles
View Blog EntriesMini Statistics
- Join Date
- 1st April 2011
- Last Activity
- Today 06:21
- Blog Entries
- 0
More 84 Friends
1 Groups
Join Groups 0 Permission Groups
BradtheRad is not a member of any public groups
Awards
No Awards.
Achievements
7 years registered- Tab Content
- BradtheRad's Activity
- About Me
- Friends
- Experience
- Tab Content
-
Older Activity
-
Today, 04:38Example, buck converter with LC smoothing filter at supply input. Notice Ampere draw does not go higher than 240mA. This is compatible with usual...2 replies | 67 view(s) -
Yesterday, 23:28Is this PoE or PoE+ ? The newer version provides more current than the older. You need 10W, and the supply is about 50V, correct? Then you wish...2 replies | 67 view(s)
-
Yesterday, 20:39Does the value need to go to zero? Or is it satisfactory to have a range of 1k to 2k? You can do that by putting a resistor in series with just one...3 replies | 56 view(s)
-
Yesterday, 06:47BradtheRad replied to a thread How does one learn to read a schematic? (Marshall tube guitar amp) in Tubes and RetroIt's an old-fashioned tube (valve) amplifier. Marshall is a well-reputed brand from that era. Many experts believe tubes are more listenable than...3 replies | 140 view(s)
-
Yesterday, 05:17The LC network needs a properly-selected ohmic resistance somewhere. Otherwise it won't do a proper job of shaping a square wave into a sine. Your...2 replies | 188 view(s)
-
23rd August 2019, 04:13H-bridge sends full supply power through series LC. Waveform is sine-shaped. Sense resistor automatically detects LC resonant frequency, by detecting...4 replies | 219 view(s)
-
22nd August 2019, 14:52BradtheRad replied to a thread Problem with Logitech Audio PCB (No Sound Output) in Hobby Circuits and Small Projects ProblemsI'm looking at the 0V readings at pins 5 through 10, on IC#2. That can't be normal. IC#1 gives 0V only at pin 9 which is labelled ground.34 replies | 1619 view(s)
-
22nd August 2019, 05:03Your schematic is common-base operation of a transistor. Its characteristics are: * low input impedance * high output impedance * high gain. By...7 replies | 284 view(s)
-
21st August 2019, 12:33BradtheRad replied to a thread Halogen Lamp Limit Resistor? in Service Manuals, Requests, Repair TipsAlthough 10W is calculated dissipation, nevertheless it's wise to make your resistor rated for higher than that. Consider putting several one ohm...15 replies | 449 view(s)
-
21st August 2019, 02:37Your query is suitable to post in a regular forum. There it is likely to get replies from our daily regular experts. These group discussions seem...2 replies
-
21st August 2019, 02:12BradtheRad replied to a thread Halogen Lamp Limit Resistor? in Service Manuals, Requests, Repair TipsThis article on halogen bulbs points out ways they are different from normal incandescents. (Halogen type has a cycle of filament metal being...15 replies | 449 view(s)
-
20th August 2019, 05:02iqbalpiac replied to a thread I am posting dsPIC30f2010 inverter circuits diagrams with PCB proteuse files and HEX in Show your DIYPlease find7 replies | 902 view(s)
-
19th August 2019, 13:10BradtheRad replied to a thread Halogen Lamp Limit Resistor? in Service Manuals, Requests, Repair TipsAs Brian says, it's more efficient to pulse the headlight. Nevertheless it's interesting to figure out how to achieve the resistive drop. To send...15 replies | 449 view(s)
-
19th August 2019, 03:40BradtheRad replied to a thread Multiple AC inputs relay (light PLC) in Elementary Electronic QuestionsThis can be done by putting resistors inline with the input signals. The weighting proportions are achieved by making differing ohm values. Mix them...5 replies | 225 view(s)
-
17th August 2019, 22:32It's an idea worth some experimentation. Or to have a potentiometer choose how much comes from a capacitor and how much from an inductor. This...10 replies | 567 view(s)
-
16th August 2019, 22:00BradtheRad replied to a thread High power efficiency oscillator topologies? in RF, Microwave, Antennas and OpticsSorry, I wasn't certain as to what waveform you want. This sine wave oscillator has a resonant current loop based on two capacitors and one inductor....14 replies | 453 view(s)
-
16th August 2019, 12:55BradtheRad replied to a thread High power efficiency oscillator topologies? in RF, Microwave, Antennas and OpticsMultivibrator, frequency depends on capacitor value. 6pF yields 130 MHz. Output transition is a few volts. Draws about 1mA from 3V supply. ...14 replies | 453 view(s)
-
16th August 2019, 06:45By installing a capacitor between the two sources, rapid zero-crossings are detectable. The capacitor produces spikes. However it may also produce...8 replies | 418 view(s)
-
15th August 2019, 12:17I do loadpull for the main amplifier at two points: 1. Just before the peaking amplifier turns on and begins to significantly do "load modulation". ...5 replies | 357 view(s)
-
15th August 2019, 07:47Install a resistor between the two sources. One source becomes ground for the other source. Measure voltage across the resistor to read differential...8 replies | 418 view(s)
-
15th August 2019, 00:04BradtheRad replied to a thread How to add the outputs of a different voltage double ciruits in Analog Circuit DesignRework one circuit so it outputs negative polarity. Connect your load across the two outputs. This method works if the two ground icons represent a...3 replies | 239 view(s)
-
14th August 2019, 07:12By adding an inductor to the capacitor, attenuation is not as severe. Because you don't have a resistor involved. For 1-30 MHz range an inductor...10 replies | 567 view(s)
-
14th August 2019, 01:04BradtheRad replied to a thread Difference between Differentiators and Comparators in Elementary Electronic QuestionsA differential detector is the input stage of a comparator. A differentiator performs a calculus function, differentiation. Its the counterpart of...3 replies | 171 view(s)
-
13th August 2019, 06:17vivekroy replied to a thread How to increase high frequency output power in RF, Microwave, Antennas and OpticsThe curve that circuitking has shared shows a very wide region of operation. Obtaining matching across such a wide range is quiet difficult....5 replies | 279 view(s)
-
13th August 2019, 04:15BradtheRad replied to a thread How to increase high frequency output power in RF, Microwave, Antennas and OpticsCan this be solved by impedance matching? Normally that is associated with the goal to maximize power transfer. Input arrives as a combination of...5 replies | 279 view(s)
-
13th August 2019, 02:44BradtheRad replied to a thread [SOLVED] voltage and current waveforms spark gap in Elementary Electronic QuestionsFor an example of unusual waveforms in Tesla coils, there's the kind that sings: "Dueling Banjos on musical Tesla Coils"9 replies | 430 view(s)
About BradtheRad
Basic Information
Optional Info
- Biography:
- Born 1953. Some college.
- Location:
- Minneapolis, Minnesota, USA
- Interests:
- Several hobbies and interests.
- Occupation:
- currently unemployed
Statistics
Total Posts
- Total Posts
- 12,841
- Posts Per Day
- 4.19
General Information
- Last Activity
- Today 06:21
- Join Date
- 1st April 2011
Helpful Postings
- Has Rated
- 333
- Post Rated
- Rated helpful 2544 out of 2544 times
84 Friends
Showing Friends 1 to 10 of 84
Experience
Points
- Points
- 52,388
- Level
- 55
Level up completed
- Level up completed
- 92%
- Points required
- 162
Activity
- Activity
- 99.8%
- Activity last 30 days
- 99.8%
- Activity last 7 days
- 99.8%
Points
All Points for user
- Points for User
- 7,998
- Points for Reputation
- 5,191
- Points for every day since registration
- 2,555
- Points for Friends
- 252
All Points for threads
- Points for threads
- 2,115
- Points for Threads
- 25
- Points for Social Group Discussions
- 15
- Points for tagging threads
- 2,023
- Points for replies
- 52
All Points for posts
- Points for Posts
- 42,274
- Points for Posts
- 29,490
- Points for Social Group Messages
- 18
- Points for uploading Attachments
- 11
- Average Posts per Day
- 3.00
- Helpful Answers
- 12,755
All Points for miscellaneous
- Points for Misc
- 0
Activities
25th August 2019
- 03:06 BradtheRad has earned 3 Points for threads points
- 03:06 BradtheRad has earned 2 Points for User points
- 03:06 BradtheRad has earned 17 Points for Posts points
24th August 2019
- 03:07 BradtheRad has earned 3 Points for Posts points
- 03:07 BradtheRad has earned 1 Points for User points
23rd August 2019
- 03:06 BradtheRad has earned 2 Points for User points
- 03:06 BradtheRad has earned 11 Points for Posts points
- 03:06 BradtheRad has earned 1 Points for threads points
22nd August 2019
- 03:07 BradtheRad has earned 5 Points for User points
- 03:07 BradtheRad has earned 13 Points for Posts points
21st August 2019
- 03:06 BradtheRad has earned 5 Points for Posts points
- 03:06 BradtheRad has earned 3 Points for threads points
20th August 2019
- 03:06 BradtheRad has earned 3 Points for User points
- 03:06 BradtheRad has earned 11 Points for Posts points
- 03:06 BradtheRad has earned 1 Points for threads points
18th August 2019
- 03:06 BradtheRad has earned 8 Points for Posts points
- 03:06 BradtheRad has earned 3 Points for User points
- 03:06 BradtheRad has earned 1 Points for threads points
17th August 2019
- 03:07 BradtheRad has earned 9 Points for Posts points
- 03:07 BradtheRad has earned 1 Points for threads points
Show Activities from all Users