IPA is easily available and very effective. I clean all my pcb work with it.
First I try to remove the most of the dried resin with a hard plastic stick.
Then IPA and a toothbrush
Then IPA with cotton swab.
Then IPA almost a rinse with a light paintbrush...to remove the remaining residue.
Quite time consuming. But I enjoy the process. I just can't stand dirty pcb's
Then IPA and a toothbrush
Then IPA with cotton swab.
Then IPA almost a rinse with a light paintbrush...to remove the remaining residue.
Quite time consuming. But I enjoy the process. I just can't stand dirty pcb's
Attachments
Use a toothbrush and acetone to remove the flux resin. After that dries you can clean up the residue left behind from acetone with IPA for a nice shiny board.
l follow the values in the schematic of the first post, MU follower.
are the different values audible ?
l will check my parts bin for values proposed in post 29
This will be one of my projects for 2023. I have looked at other preamp DIY projects, this one doesn't require reading one thousand posts and sorting through them to find the relevant information.
Also, my son is an independent musician, a DIY'er with his music. He went a couple of years of taking down all his digital music because people would post snide remarks, even suggesting he kill himself.
Of course he continues with his music, ignoring the "critics." I am truly glad to see you sharing your designs, and suggest to anyone who wants to provide negative criticism that they also share and post their own work and designs, being ready for opinions.
I personally don't care about opinions, only what sounds good. It's only about music and reproduction of music. Constructive criticism is always welcome. The glass is half empty. I cannot read music, play any instrument of any kind. But life without music is not life, and I appreciate the skills of those who work to make and reproduce music.
Also, my son is an independent musician, a DIY'er with his music. He went a couple of years of taking down all his digital music because people would post snide remarks, even suggesting he kill himself.
Of course he continues with his music, ignoring the "critics." I am truly glad to see you sharing your designs, and suggest to anyone who wants to provide negative criticism that they also share and post their own work and designs, being ready for opinions.
I personally don't care about opinions, only what sounds good. It's only about music and reproduction of music. Constructive criticism is always welcome. The glass is half empty. I cannot read music, play any instrument of any kind. But life without music is not life, and I appreciate the skills of those who work to make and reproduce music.
Hi
The relay does not work. The diode lights up slowly, but the relay does not turn on. Voltage on the emitter BC337 2V
The relay does not work. The diode lights up slowly, but the relay does not turn on. Voltage on the emitter BC337 2V
If you do not use the takamisawa na5w-k relais, you need more current for the relais. Change the bc337 for bc547c.
And are you shure your relais has the same pin for + supply on coil?
And are you shure your relais has the same pin for + supply on coil?
