From: jl@glen--canyon.com
On Sun, 25 Jan 2026 17:32:40 +0100, Jeroen Belleman
wrote:
>On 1/25/26 16:33, john larkin wrote:
>> On Sun, 25 Jan 2026 13:04:14 +0100, Jeroen Belleman
>> wrote:
>[...]
>>> Jeroen Belleman
>>>
>>> ===============================
>>> Version 4
>>> SHEET 1 1476 680
>>> WIRE 240 0 64 0
>>> WIRE 864 0 240 0
>>> WIRE 416 128 272 128
>>> WIRE 576 128 512 128
>>> WIRE 624 128 576 128
>>> WIRE 736 128 704 128
>>> WIRE 1040 128 896 128
>>> WIRE 1168 128 1168 96
>>> WIRE 1168 128 1136 128
>>> WIRE 240 144 240 0
>>> WIRE 272 144 272 128
>>> WIRE 864 144 864 0
>>> WIRE 896 144 896 128
>>> WIRE 416 160 352 160
>>> WIRE 576 160 512 160
>>> WIRE 1040 160 976 160
>>> WIRE 1232 160 1136 160
>>> WIRE 1296 160 1232 160
>>> WIRE 1456 160 1376 160
>>> WIRE 64 176 64 0
>>> WIRE 352 176 352 160
>>> WIRE 576 176 576 160
>>> WIRE 976 176 976 160
>>> WIRE 272 256 272 240
>>> WIRE 320 256 272 256
>>> WIRE 896 256 896 240
>>> WIRE 944 256 896 256
>>> WIRE 64 288 64 256
>>> WIRE 240 304 240 240
>>> WIRE 864 304 864 240
>>> WIRE 864 304 240 304
>>> WIRE 240 336 240 304
>>> WIRE 240 368 240 336
>>> WIRE 192 384 96 384
>>> WIRE 192 432 96 432
>>> WIRE 96 448 96 432
>>> WIRE 240 480 240 448
>>> WIRE 96 544 96 528
>>> FLAG 64 288 0
>>> FLAG 240 480 0
>>> FLAG 736 128 0
>>> FLAG 96 384 0
>>> FLAG 96 544 0
>>> FLAG 576 128 outp
>>> FLAG 240 336 D
>>> FLAG 320 256 0
>>> FLAG 944 256 0
>>> FLAG 1456 160 0
>>> FLAG 976 176 0
>>> FLAG 1168 96 0
>>> FLAG 1232 160 outm
>>> FLAG 576 176 0
>>> FLAG 352 176 0
>>> SYMBOL voltage 64 160 R0
>>> SYMATTR InstName V1
>>> SYMATTR Value 100
>>> SYMBOL tline 256 192 R90
>>> SYMATTR InstName T1
>>> SYMATTR Value Td=5n Z0=50
>>> SYMBOL sw 240 352 R0
>>> SYMATTR InstName S1
>>> SYMATTR Value myswitch
>>> SYMBOL res 608 144 R270
>>> WINDOW 0 32 56 VTop 2
>>> WINDOW 3 0 56 VBottom 2
>>> SYMATTR InstName R1
>>> SYMATTR Value 50
>>> SYMBOL voltage 96 432 R0
>>> WINDOW 123 0 0 Left 2
>>> WINDOW 39 0 0 Left 2
>>> SYMATTR InstName V2
>>> SYMATTR Value PULSE(0 1 1n 1n 1n 15n)
>>> SYMBOL tline 880 192 R90
>>> SYMATTR InstName T2
>>> SYMATTR Value Td=5n Z0=50
>>> SYMBOL res 1392 144 R90
>>> WINDOW 0 0 56 VBottom 2
>>> WINDOW 3 32 56 VTop 2
>>> SYMATTR InstName R2
>>> SYMATTR Value 50
>>> SYMBOL tline 1088 144 R0
>>> SYMATTR InstName T3
>>> SYMATTR Value Td=5n Z0=50
>>> SYMBOL tline 464 144 R0
>>> SYMATTR InstName T4
>>> SYMATTR Value Td=5n Z0=50
>>> TEXT 296 408 Left 2 !.model myswitch SW(Ron=10m roff=1G Vt=0.5)
>>> TEXT 96 -16 Left 2 !.tran 50n
>>
>> It throws a "Multiple Instances of Flag" error
>>
>>
>> John Larkin
>> Highland Tech Glen Canyon Design Center
>> Lunatic Fringe Electronics
>
>That's a nuisance. I downloaded it again from your answer and it works
>fine here. I tried googling for that error message, but it typically
>seems to occur when subcircuits are included, and I don't do that.
>Eyeballing the .asc text, looking for anything duplicated, didn't help
>either. I'm a bit at a loss here.
>
>Could you try removing all the lines starting with 'FLAG'? The file
>will still open in the schematic editor, but now all the GND connections
>are gone, as are the node names. Insert GNDs again by hand. They are
>all at the ends of bits of wire.
>
>Jeroen Belleman
Weird. If I edit it down to one FLAG, it complains about multiple
SYMATTRs. I think multiple symattrys are legal.
Your other circuit worked fine.
What is a FLAG anyhow? The help doesn't say.
John Larkin
Highland Tech Glen Canyon Design Center
Lunatic Fringe Electronics
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