PetterHans
@bwack77.bsky.social
Embedded Software Engineer. Former Electronics R&D engineer. Loves to play with electronics on my free time.
https://youtube.com/@bwack
https://youtube.com/@bwack
Best music and trianing scenes ever. Rocky IV.
a man is carrying a large log over his shoulder
ALT: a man is carrying a large log over his shoulder
media.tenor.com
October 11, 2025 at 3:03 PM
Best music and trianing scenes ever. Rocky IV.
Sunbathing my new esd mat, which stinks of rubber. Hoping it will help.
September 27, 2025 at 12:46 PM
Sunbathing my new esd mat, which stinks of rubber. Hoping it will help.
Playing with a STM32L0, and the cubemx nad cubeide. IR LEd/sensor. For a fridge door alarm. Last attempt was with a solar panel. This time with a CR2032 battery.
September 15, 2025 at 3:31 PM
Playing with a STM32L0, and the cubemx nad cubeide. IR LEd/sensor. For a fridge door alarm. Last attempt was with a solar panel. This time with a CR2032 battery.
Updating the Ultimate64 firmware, and I see the best scanline emulation I'vr ever seen.
July 28, 2025 at 10:05 AM
Updating the Ultimate64 firmware, and I see the best scanline emulation I'vr ever seen.
A friend I met through my YouTube channel donated this board for me. The Ultimate 64 motherboard!
July 17, 2025 at 10:39 PM
A friend I met through my YouTube channel donated this board for me. The Ultimate 64 motherboard!
I mod'ed the Denon PMA 1500AE, by adding a loudness circuit. Thanks to @pcbwayofficial.bsky.social @queenelaine.bsky.social for sending and sponsoring me with PCBs. youtu.be/dBOXJuC_H-c?...
Loudness Mod in a Denon PMA 1500AE
YouTube video by bwack
youtu.be
May 31, 2025 at 7:33 AM
I mod'ed the Denon PMA 1500AE, by adding a loudness circuit. Thanks to @pcbwayofficial.bsky.social @queenelaine.bsky.social for sending and sponsoring me with PCBs. youtu.be/dBOXJuC_H-c?...
NAD 7120 Stereo Receiver from 1983. Fixed the dead radio. Blown transistor replaced supplying 12V. A nice feeling to be able to bring it back to life after 30 years.
May 18, 2025 at 10:55 PM
NAD 7120 Stereo Receiver from 1983. Fixed the dead radio. Blown transistor replaced supplying 12V. A nice feeling to be able to bring it back to life after 30 years.
Adding loudness to my dad's Denon 1500AE.
May 11, 2025 at 11:18 PM
Adding loudness to my dad's Denon 1500AE.
NAD 7120 Receiver. 2x20W. No power in the tuner section.
April 27, 2025 at 7:42 PM
NAD 7120 Receiver. 2x20W. No power in the tuner section.
iPhone zombies. They're everywhere, and it is getting worse!
April 9, 2025 at 1:40 PM
iPhone zombies. They're everywhere, and it is getting worse!
Reposted by PetterHans
Winamp Skin: ASCII Amp 5x by mrd00d
April 3, 2025 at 10:26 PM
Winamp Skin: ASCII Amp 5x by mrd00d
I made a new video about fixing my amplifier youtu.be/d_n1VYs8T0c?...
Repairing my Denon PMA 1500R- Pt.2
YouTube video by bwack
youtu.be
March 19, 2025 at 1:48 PM
I made a new video about fixing my amplifier youtu.be/d_n1VYs8T0c?...
Aaaand it works again. Re-flowed solder joints. Replaced output transistors. Adjusted quiescent current.
March 15, 2025 at 4:23 PM
Aaaand it works again. Re-flowed solder joints. Replaced output transistors. Adjusted quiescent current.
Re-assembling the stereo amp after fixing it. It's a puzzle to put the boards together with wires and screw.
March 15, 2025 at 2:55 AM
Re-assembling the stereo amp after fixing it. It's a puzzle to put the boards together with wires and screw.
The Wave 1981
Just recalled this movie name. Been thinking about it a lot lately, but could not recall it. My teacher showed it to us in secondary school. The movie sat with me for a long time. youtu.be/4qlBC45jk3I?...
Just recalled this movie name. Been thinking about it a lot lately, but could not recall it. My teacher showed it to us in secondary school. The movie sat with me for a long time. youtu.be/4qlBC45jk3I?...
The Wave -- Afterschool Speical -- 1981
YouTube video by tainlor
youtu.be
March 3, 2025 at 5:14 PM
The Wave 1981
Just recalled this movie name. Been thinking about it a lot lately, but could not recall it. My teacher showed it to us in secondary school. The movie sat with me for a long time. youtu.be/4qlBC45jk3I?...
Just recalled this movie name. Been thinking about it a lot lately, but could not recall it. My teacher showed it to us in secondary school. The movie sat with me for a long time. youtu.be/4qlBC45jk3I?...
Reposted by PetterHans
My C64 keyboard PCBs just arrived. I was so excited, that I have cut my thumb, when I opened the package. The small pcb is for making it possible to use a ribbon cable as keyboard cable without crimping.
March 3, 2025 at 12:17 PM
My C64 keyboard PCBs just arrived. I was so excited, that I have cut my thumb, when I opened the package. The small pcb is for making it possible to use a ribbon cable as keyboard cable without crimping.
Reposted by PetterHans
Another repair!
Fixing a C64 with bad CIA, Power Switch/Socket
YouTube video by More Fun Fixing It
youtu.be
March 2, 2025 at 12:49 PM
Another repair!
The dim bulb limiter is helping me bring up the rials voltage safely.
February 28, 2025 at 9:32 AM
The dim bulb limiter is helping me bring up the rials voltage safely.
Nibbeling out holes for a dim bulb limiter
February 27, 2025 at 10:59 PM
Nibbeling out holes for a dim bulb limiter
I need to build a dim bulb limiter youtube.com/shorts/o4m8d...
Dim bulb tester usage on older amplifiers / receivers
YouTube video by Davey Tech
youtube.com
February 24, 2025 at 7:14 PM
I need to build a dim bulb limiter youtube.com/shorts/o4m8d...
Just now tried Mechanic Nano Flux paste. Clear. Almost no smell.
February 22, 2025 at 3:58 PM
Just now tried Mechanic Nano Flux paste. Clear. Almost no smell.
New transistors are soldered in my amp
February 22, 2025 at 10:16 AM
New transistors are soldered in my amp
I measured Rfs pn and Vgs threshold in MOSFETs. Yes! youtu.be/zH2lFCjK0hE?...
Is the MOSFET fake or real ? (Rdson and Vgs threshold test)
YouTube video by bwack
youtu.be
February 17, 2025 at 2:40 AM
I measured Rfs pn and Vgs threshold in MOSFETs. Yes! youtu.be/zH2lFCjK0hE?...