| General > General Technical Chat |
| I find "programming" a constant distraction from electronics in some "tutorials" |
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| tggzzz:
--- Quote from: eti on September 21, 2020, 11:26:04 pm ---It speaks volumes that only ONE person "gets" what I am on about. Thank you for speaking up, and not allowing the majority to imply I am retarded, or "stupid" for thinking how I do. :-+ Many, many years, an old boss of mine told me "the TRUE component-level, electronics fundamental designers are a rare breed - now it's all module-pluggers who call themselve 'electronics engineers' when all they know how to do, for the most part, is copy blocks and plug them together" - I recall having brought up this conversation (this was the 90s) - boy was he ever right! --- End quote --- I heard that many decades (not years) ago, in the 60s and 70s. Context: digital integrated circuits, opamps, and pre-assembled modules. If only one person gets what you are on about, then obviously you have not expressed your position clearly enough. |
| bsfeechannel:
--- Quote from: Circlotron on September 22, 2020, 03:25:09 am ---They'd use a 555 instead to flash a LED. And they were lauded as geniuses, of course. --- End quote --- 555 was for the weak. Real men flashed their leds with unijunction transistors. |
| vk6zgo:
--- Quote from: bsfeechannel on September 24, 2020, 12:18:03 am --- --- Quote from: Circlotron on September 22, 2020, 03:25:09 am ---They'd use a 555 instead to flash a LED. And they were lauded as geniuses, of course. --- End quote --- 555 was for the weak. Real men flashed their leds with unijunction transistors. --- End quote --- Bah! Humbug! If you absolutely have to flash LEDs, like a barbarian, instead of neons like a civilised person, you should use an astable MV using BC108s, or maybe even OC71s. I'm pretty sure you could get a 12AT7 to work at lower voltages, too. A couple of relays back to back might work, ------ but a bimetallic strip would be even better. As for 555s,-----------they were regarded as "so easy, even caveman can do!" No plaudits were awarded there. More like, "Well, duhh!" |
| Circlotron:
--- Quote from: vk6zgo on September 24, 2020, 04:38:35 am --- --- Quote from: bsfeechannel on September 24, 2020, 12:18:03 am --- --- Quote from: Circlotron on September 22, 2020, 03:25:09 am ---They'd use a 555 instead to flash a LED. And they were lauded as geniuses, of course. --- End quote --- 555 was for the weak. Real men flashed their leds with unijunction transistors. --- End quote --- Bah! Humbug! If you absolutely have to flash LEDs, like a barbarian, instead of neons like a civilised person, you should use an astable MV using BC108s, or maybe even OC71s. I'm pretty sure you could get a 12AT7 to work at lower voltages, too. A couple of relays back to back might work, ------ but a bimetallic strip would be even better. --- End quote --- Luxury! Back in my day we did it with contacts driven by clockwork. And incandescent bulbs. None of this LED rubbish! |
| fourfathom:
--- Quote from: Circlotron on September 24, 2020, 05:34:54 am --- --- Quote from: vk6zgo on September 24, 2020, 04:38:35 am --- --- Quote from: bsfeechannel on September 24, 2020, 12:18:03 am --- --- Quote from: Circlotron on September 22, 2020, 03:25:09 am ---They'd use a 555 instead to flash a LED. And they were lauded as geniuses, of course. --- End quote --- 555 was for the weak. Real men flashed their leds with unijunction transistors. --- End quote --- Bah! Humbug! If you absolutely have to flash LEDs, like a barbarian, instead of neons like a civilised person, you should use an astable MV using BC108s, or maybe even OC71s. I'm pretty sure you could get a 12AT7 to work at lower voltages, too. A couple of relays back to back might work, ------ but a bimetallic strip would be even better. --- End quote --- Luxury! Back in my day we did it with contacts driven by clockwork. And incandescent bulbs. None of this LED rubbish! --- End quote --- When I was a young lad we used Leyden Jars and carbon arcs, like God intended. |
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