28-03-2023, 06:58 AM
Having been trained to wire to Admiralty standards with all wires mechanically anchored before soldering and all looms laced I am a bit fussy about wiring assemblies.
I still have problems understanding how dead bug assembly of surface components onto pcbs can be considered reliable. I suppose its because nothing weighs anything these days.
Strange that the old radio factories still wrapped wires onto tags rather than just sticking them on with solder even when they had to make economies after the war. They must of had good reason.
I watched the second part about rebuilding the mains energised speaker. It was less horrendous than part one. He managed to glue up the splits in the cone quite well with coffee filter paper which I thought to be too stiff having always used tissue paper and was lucky enough to centralise the cone without shims on assembly. Again his soldering onto the output transformer terminals was diabolical.
I cannot comment on the Bluetooth having no experience of such wizardry but it seemed to work. A shame that he didn't get the radio to work better but perhaps with what he did by way of renovation he was lucky that it worked at all.
I still have problems understanding how dead bug assembly of surface components onto pcbs can be considered reliable. I suppose its because nothing weighs anything these days.
Strange that the old radio factories still wrapped wires onto tags rather than just sticking them on with solder even when they had to make economies after the war. They must of had good reason.
I watched the second part about rebuilding the mains energised speaker. It was less horrendous than part one. He managed to glue up the splits in the cone quite well with coffee filter paper which I thought to be too stiff having always used tissue paper and was lucky enough to centralise the cone without shims on assembly. Again his soldering onto the output transformer terminals was diabolical.
I cannot comment on the Bluetooth having no experience of such wizardry but it seemed to work. A shame that he didn't get the radio to work better but perhaps with what he did by way of renovation he was lucky that it worked at all.
Boater Sam.
