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[caraj]

[Hex Set] Silver #235 - Circuitous

[DarkHuman]

Circuitous, adj.
1 : having a circular or winding course <a circuitous route>
2 : not being forthright or direct in language or action <a circuitous explanation>
ok, it's a circut, i'm guessing television . radio

i see a speaker next to the "?"
0.2F-?
a 12V power source and 6 resistors;
230KΩ,
5.5MΩ, (switch)
2.2KΩ, (switch,+FF?)
290MΩ,
110Ω,
770MΩ,

[KingOfWrong]

Following standard circuit conventions, there are four separate circuits there. The loop, the 2-in/4-out XNOR gate, the 1-in/1-out AND gate, the 2-in/1-out-via-galvanometer OR gate and the 1-in/2-out NOT gate.

The loop has multiple resistors in series, which is rather strange, and the positive terminals of the batteries going directly to ground, which is even more so. My interpretation is that the bulb will be lit so long as there is battery charge remaining and that it's some sort of Morse code/telegraph system - one "on/off" switch, one code tapper (the non-standard switch designs seem to imply that), speaker with slight filtering. Not sure what the purpose of the logic (i.e. digital electronics, in the midst of all this analogue) is.

Another possibility is the colour codes on the resistors:
230KΩ = Red/Orange/Yellow
5.5MΩ = Green/Green/Green
2.2KΩ = Red/Red/Red
290MΩ = Red/White/Violet*
110Ω = Brown/Brown/Brown
770MΩ = Violet/Violet/Violet*
(* - Violet may or may not be valid for the multiplier band)

For completeness, the capacitor would have a code of 204 (2.0x10 ⁴ pF)

[fretty]

What is the black mark above aiko?

[DarkHuman]

[Relish]

[arnezami]

There appear to be small digits in the top-left corner of this card.

Could somebody please write them down here. We are discussing these digits here btw.

arnezami

[Furry Mark]

Digits are:

1-4444444434444444444443-4
4-222233332222.5-1
(Horizontal)

(Posted in the other thread as well)

[Skizz]

This is a very pointless circuit. Closing the two switches wouldn't make anything happen - the very high resistor values act as effect insulators. If these were lower, all that would happen is that the capacitor would charge up (with lamp lit) and once charged, no further current would flow (lamp off). Further flipping the switches would have no effect whatsoever. The current flows anti-clockwise so the diode (black triangle) has no effect. Incidentally, the ground connected to the +ve terminal is OK - it just means the -ve terminal is at -V volts with respect to ground (where V is the cell rating).

The card directly mentions the electronics related scientists:

[Skizz]

Actually, thinking about it, the scientists mentioned above are all related to the development of electrical circuits, so the answer could be:

[thereverendeg]

Well

[makomk]

Hmmm... that looks like a fairly good selection of circuit diagram symbols there. Maybe something to do with the inventor of the symbols?</long-shot>

The only thing that's obvious is that this makes no sense as an actual circuit.

[thereverendeg]

another idea

[hendo77]

Von's Hint:

[arieh]

I note a siver line, beginning in the border but crossing the main card. Is this a standard feature of Silvers (I don't have enough to know)?