rainyliveshere

Joined: Jul 4, 2026

Last seen: Today at 8:12 AM Viewing thread toy crane boom to shake back and forth

Latest activity Postings About

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  rainyliveshere replied to the thread High Current Issue with Complementary 300W Amplifier.
  
  Test using a current-limited bench supply. Remove the output transistors before initial testing. Then measure current through both...
  
  Yesterday at 3:57 PM
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  rainyliveshere replied to the thread Suitable replacement for a large Siemens capacitor in an old IBM XT power supply.
  
  what voltage do you measure across the new 220 uF / 400 V capacitor while the PSU is switched on?
  
  Yesterday at 3:33 PM
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  rainyliveshere replied to the thread Step-down board In: 3.7v out: 2v.
  
  One thing to consider is the TPS62740 from Texas Instruments. It supports a 2.2–5.5 V input and an adjustable output from 1.8 to 3.3 V...
  
  Saturday at 5:56 PM
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  rainyliveshere replied to the thread The Simple DiseqC1.2 Satellite Dish Positioner for beginners..
  
  Have you made any enclosure for the PCB?
  
  Thursday at 3:36 PM
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  rainyliveshere replied to the thread blown charger for a workzone charger 220-250v 45w12.8v.
  
  Yeah. Keeping the amount of damage in mind, that will be a logical decision.
  
  Thursday at 3:30 PM
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  rainyliveshere replied to the thread Help me repair the Makita DC40RB charger.
  
  Check the datasheets of both HR1002 and HR1001A. They may not be interchangeable in every application.
  
  Oct 21, 2026
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  rainyliveshere replied to the thread Technogym PCB component identification.
  
  PC 11-13 look like surface-mount multilayer ceramic capacitors though I cannot say anything about the values.
  
  Oct 21, 2026
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  rainyliveshere replied to the thread DipTrace 5.3.5 released: faster rendering, native Altium binary and CADint import.
  
  The native Altium binary import is a particularly welcome addition. Removing the need for an intermediate ASCII export should simplify...
  
  Oct 18, 2026
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  rainyliveshere replied to the thread High Current Issue with Complementary 300W Amplifier.
  
  Check the actual datasheets for the NJW0281G, NJW0302G, and every driver transistor. Confirm the base, collector, and emitter...
  
  Oct 18, 2026
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  rainyliveshere replied to the thread Capacitor Value.
  
  See any markings remaining on the damaged capacitor.
  
  Oct 15, 2026
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  rainyliveshere replied to the thread Need help to design an array antenna.
  
  The jump to 140 GHz changes several practical constraints. Basic array principles still remain largely unchanged. However, losses and...
  
  Oct 4, 2026
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  rainyliveshere posted the thread Did you ever make any circuit or device for yourself? in General Electronics Discussion.
  
  If yes, what it is? I made a booklight months ago. Still trying to make that better. I made some fairy light jars before.
  
  Oct 3, 2026
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  rainyliveshere replied to the thread To Bob Welshe.
  
  Not sure but maybe he is active in AAC now.
  
  Oct 3, 2026
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  rainyliveshere replied to the thread CircuitSim.
  
  No download needed?
  
  Sep 12, 2026
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  rainyliveshere replied to the thread What to study for a semiconductor testing course admission test?.
  
  I only have experience in testing AVR microcontrollers, PIC microcontrollers and Arduino boards using AVR programmer, PICkit2 and...
  
  Sep 12, 2026
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