I can't remember how many cracked solder pads I ran into on controls. I just made it part of my PM to scrape back the trace and run a jumper from the control leg to the pad & trace. I especially hated working on any amp that was used in any place where drinking was allowed, as most of the time drinks got "somehow" spilled into the amp, then in a couple of days it would fail. Getting the sticky mess off the boards was no fun. Soft drinks were the worst. They could cause corroded traces and frozen up controls from the sugar syrup in the liquids. I always used denatured alcohol to clean off the heatsink compound with. Gas was too dangerous to use in a store , plus the fumes make me ill. Good going on it so far!
Hi Andy, good video and breakdown on that amp, following with interest as it would make for a similar build project in future. Just curious, does that Toroid have a soft start thermistor in the circuit?
Thanks. It'd make a terrible build project, it uses lateral fets which are rare as rocking horse shit or very expensive & risky to buy. No, no soft start, no protection apart from a crowbar basic as it comes & turning into a nightmare.
Thanks for the video.
I can't remember how many cracked solder pads I ran into on controls. I just made it part of my PM to scrape back the trace and run a jumper from the control leg to the pad & trace. I especially hated working on any amp that was used in any place where drinking was allowed, as most of the time drinks got "somehow" spilled into the amp, then in a couple of days it would fail. Getting the sticky mess off the boards was no fun. Soft drinks were the worst. They could cause corroded traces and frozen up controls from the sugar syrup in the liquids. I always used denatured alcohol to clean off the heatsink compound with. Gas was too dangerous to use in a store , plus the fumes make me ill.
Good going on it so far!
Thanks for your IP & TFW.
Hi Andy, good video and breakdown on that amp, following with interest as it would make for a similar build project in future.
Just curious, does that Toroid have a soft start thermistor in the circuit?
Thanks. It'd make a terrible build project, it uses lateral fets which are rare as rocking horse shit or very expensive & risky to buy. No, no soft start, no protection apart from a crowbar basic as it comes & turning into a nightmare.
PCB mounted pots and sockets are a bad idea because soft soldering is just that, it's has no mechanical strength.
Love that old Tek 'scope
Yep, bang on. The Tek scope on the other hand is a work of art, I have one for sale if your after one & are in the UK. TFW.
What can it be keep blowing fuse on speaker amplifier
It has one working channel, the other channel though is a nightmare to fix. Thanks for watching.