#garfield Logs

Feb 14 2020

12:35 AM MiniBat: exit
12:41 AM MiniBat: exit
12:46 AM rue_shop2: ]enter
12:46 AM rue_shop2: enter
03:30 AM polprog: --
03:31 AM polprog: looks like i forgot to resolder the vertical transistor
04:03 AM polprog: hmm. the flyback is making noise every time i turn it on now
04:03 AM polprog: no picture
04:25 AM polprog: wtf
04:25 AM polprog: there was static electricity on the flyback cover
04:25 AM polprog: i could see the dust particles stating straight on it
04:26 AM polprog: cant see any arc though
04:46 AM polprog: https://www.repairfaq.org/sam/monfaq.htm#monexchv i suspect intertan flyback arcing or https://www.repairfaq.org/sam/monfaq.htm#monexchv
04:46 AM polprog: huh why did i paste that twice
05:13 AM polprog: so two more people confirmed its internal arcing in the flyback
07:21 AM polprog: https://polprog.net/rozne1/ircjunk/nokiacrt/works_2.png
07:22 AM polprog: i dont think youll believe me
07:22 AM polprog: but it improved greatly after i sprayed the yoke connector with switch cleaner and let it dry
08:55 AM polprog: lets try to crack this ethernet transformer
08:56 AM polprog: wierd thing
09:07 AM polprog: im done for today
09:07 AM polprog: i need to understant that 74hc14 oscillator
09:07 AM polprog: understand*
11:03 AM polprog: hmm, i found a simpler one
12:41 PM polprog: i could push it to 1.5 MHz wow
12:55 PM polprog: looks like ill have to print from the laptop
12:56 PM polprog: i wonder if setting up this printer with samsungs drivers for linux will fuck my debian up a lot or just a little
01:40 PM polprog: this is stupid simple
01:40 PM polprog: whyy didnt i come up with this earlier
01:40 PM polprog: https://polprog.net/rozne1/ircjunk/varosc_sch.jpg
01:40 PM polprog: ^_^
02:15 PM polprog: if you bridge the mosfet with a resistor you can set the max frequency
02:15 PM polprog: for example 1k gives me max 2.6Hz
02:16 PM polprog: and 2k gives me 163kHz. Awesome circuit
02:25 PM polprog: https://polprog.net/rozne1/ircjunk/varosc.jpg
09:24 PM Tom_itx: mmm
09:24 PM Tom_itx is now known as Tom_L