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Archive for the ‘Transformers’ Category:
2025-06-21 Making AC Voltage Boost Transformer To Correct Overloaded Grid
Watch the last few minutes of this 18 min. YouTube video to see the advertising on the box that tells what it does. This is really tragic. This multiple tap voltage boost transformer has to be used because the Indian electric grid is so overloaded that they can’t depend on the AC voltage to be
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2024-12-15 Hot Arcs From Flyback Transformers Play “Take On Me” by Ah-hah
Hot Arcs From Flyback Transformers Play “Take On Me” by Ah-hah. The flybacks are driven by a power amp made for driving these flyback transformers. Looks like just a few turns of 18 AWG wire are wrapped around the bare ferrite cores. A highly effective plasma speaker, better sounding than a Tesla coil. https://www.facebook.com/franzolielectronics/videos/272985324667136/?mibextid=9drbnH&s=yWDuG2&fs=e
2023-07-12 DC-DC Converters That Used Germanium Power Transistors
Me and my high school friend made a DC to DC converter that would give us 30 or so volts at a couple amps from a 12 volt battery. We used germanium power transistors which could not go much above 10 kHz. The Delco’s and the 2N458A’s were our favorites – we managed to push
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2023-07-07 Distribution Transformer Shortage
Apparently the disasters like storms, tornadoes, hurricanes and transformer failures are eating up all the supplies of distrbution transformers and manufacturers can’t keep up with the demand. If there were a disaster, the orders for replacements to get the neighborhoods back on the grid may be held up for weeks or more. https://www.publicpower.org/periodical/article/appa-survey-members-shows-distribution-transformer-production-notmeeting-demand
2018-05-06 Telephone Hybrid Coil Schematics
This is a link to telecomm information on Tomi Engdahl’s epanorama.net. http://www.epanorama.net/circuits/teleinterface.html#hybrid
2017-06-25 Mini Audio Transformer From Goldmine ElectronicsÂ
I bought several of these miniature audio transformers from Electronic Goldmine. They are encapsulated so I can’t see anything, windings, core or materials. There are 5 pins, 2 on one side and 3 on the other, but the center pin measured open, so it’s apparently there to make sure the transformer is inserted the right way. The
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