In your ASC file, C1, C2 & C3 all have invalid characters.... removing those changes the behaviour dramically - they should just be "0.1u" or "100n"...
I've included what I believe should be the astable circuit from your schematic, done in LTspice - seems to be ok... Nick -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/d7c03c5a-a884-432e-8cee-ae905081263d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Version 4 SHEET 1 880 680 WIRE 528 -16 -64 -16 WIRE 384 16 -32 16 WIRE 288 48 256 48 WIRE 320 48 288 48 WIRE 16 96 0 96 WIRE 288 96 288 48 WIRE 288 96 240 96 WIRE 736 96 704 96 WIRE 768 96 736 96 WIRE 0 112 0 96 WIRE -256 144 -288 144 WIRE -224 144 -256 144 WIRE -32 160 -32 16 WIRE 16 160 -32 160 WIRE 272 160 240 160 WIRE 384 160 384 16 WIRE 384 160 352 160 WIRE -256 176 -256 144 WIRE 736 176 736 96 WIRE -64 224 -64 -16 WIRE 16 224 -64 224 WIRE 384 224 384 160 WIRE 384 224 240 224 WIRE 416 224 384 224 WIRE 528 224 528 -16 WIRE 528 224 496 224 WIRE 560 224 528 224 WIRE 672 224 640 224 WIRE -32 256 -64 256 WIRE 0 256 -32 256 WIRE -256 288 -256 256 WIRE -32 288 -32 256 WIRE 16 288 -32 288 WIRE 304 288 240 288 WIRE 304 304 304 288 WIRE 384 304 384 224 WIRE 736 304 736 272 WIRE 736 304 688 304 WIRE 784 304 736 304 WIRE 832 304 784 304 WIRE 848 304 832 304 WIRE 688 320 688 304 WIRE 784 320 784 304 WIRE 304 384 304 368 WIRE 384 384 384 368 WIRE 688 432 688 400 WIRE 736 432 688 432 WIRE 784 432 784 384 WIRE 784 432 736 432 WIRE 736 448 736 432 FLAG 0 112 0 FLAG 304 384 0 FLAG 384 384 0 FLAG 288 48 VCC FLAG -32 256 VCC FLAG -256 288 0 FLAG -256 144 VCC FLAG 736 96 VCC FLAG 832 304 OUT FLAG 736 448 0 SYMBOL Misc\\NE555 128 192 R0 SYMATTR InstName U1 SYMBOL res 512 208 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 3K SYMBOL cap 368 304 R0 SYMATTR InstName C5 SYMATTR Value 100n SYMBOL res 368 144 R90 WINDOW 0 -2 57 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 39R SYMBOL cap 288 304 R0 SYMATTR InstName C1 SYMATTR Value 100n SYMBOL res 656 208 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 10K SYMBOL voltage -256 160 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL pnp 672 272 M180 SYMATTR InstName Q2 SYMATTR Value 2N3906 SYMBOL res 672 304 R0 SYMATTR InstName R2 SYMATTR Value 470R SYMBOL cap 768 320 R0 SYMATTR InstName C2 SYMATTR Value 100n TEXT -176 440 Left 2 !.tran 10m TEXT -288 -32 Left 2 ;Nick de Smith, 2015
