LED only
Sad lamp - LED only
Da Switch
Look at me
Full frontal...
Attaching the PCB
All wired up
Da Switch
Sad lamp - all on
Smoothing capacitor added
Smoothing capacitor added
SMD to the rescue
Burned LED
The End
The End
Salvaged LEDs
Perfboard
Almost looks like a little car
BCM vs. dumb software PWM
More light hack
More light hack
Lord Helmet
It's still round
Some quality colors
Beautiful colors
Shot with -2.0EV
V2.0 beta vs. alpha
V2.0 beta vs. alpha
PLCC2 variant - back
Code name: Lord Helmet
Code name: Lord Helmet
PLCC2 variant - front
Dimmed inner ring
Perfect fit
jyetech scope - other parts
jyetech scope - SMD parts
jyetech scope - probe assembly 1/7
jyetech scope - probe assembly 6/7
jyetech scope - empty backside
jyetech scope - SMD parts done
jyetech scope - probe assembly 5/7
jyetech scope - probe assembly 2/7
jyetech scope - "empty" board
jyetech scope - probe assembly 3/7
jyetech scope - probe assembly 4/7
jyetech scope - probe assembly 7/7
jyetech scope - only back side done
jyetech scope - 7805 regulator test
jyetech scope - 7805 regulator test
This crocodile even hase eyes!
jyetech scope - LCD
jyetech scope - all done: front side
jyetech scope - all finished: back side
jyetech scope - LCD assembled
jyetech scope
jyetech scope - fully assembled after milling
jyetech scope
jyetech scope
jyetech scope - all finished: back side
jyetech scope
jyetech scope - front panel too small
Bad RCA connector on a probe
jyetech scope - front panel too small
All on
Adding a switch for the light bulb
Eating perfboard
Test jig for DSOs
Test jig for DSOs
More details
Some signal
Full wave rectifier - strangeness
Full wave rectifier - strangeness
Full wave rectifier - with large cap
Full wave rectifier - with small load
Knock sensor waveforms
Full wave rectifier - strangeness
Knock sensor waveforms
Tektronix 314 - back cover removed
Logic vs. transistor driver
Logic vs. transistor driver
Logic vs. transistor driver
Logic vs. transistor driver
Ice Tube clock - boost conv. HF ripple
Ice Tube clock - boost conv. ripple
Ice Tube clock - boost conv. voltage
floating voltages
Tektronix 314 - floating power supply
Arduino speed measurement - 2µs/div
Tektronix 314: Arduino speed measurement - 0.1µs/d…
Jyetech - Arduino speed measurement
Tektronix 314
Piezo buzzer - cleaned
Optical smoke sensor
Optical smoke sensor
Optical smoke sensor
Smoke detector - PCB
Smoke detector - PCB
Trustworthy?
Smoke detector - weak buzzer
Smoke detector / alarm
High-tech charge regulator
1N4007 Diode
Crappy substrate
More than expected
Lack of copper again
It claims 12V...
A bit more than 12V
Trustworthy?
16A... sure...
16A... sure...
Supposedly 0.5mm² of copper
That cable is too thin for 16A
No external fuse access ;-(
DMM A/D
Is that really copper?
AC motor
Thingy
230V DC motor
Graphite brush
230V DC motor
AC stuff + bridge rectifier
Green PCB
DC motor with fan
Bread cutter innards
Bread cutter innards
Keywords
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