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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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