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#1
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changing from 1.5V battery to 9V battery
On Fri, 17 Mar 2006 08:22:43 -0800, GuitarPsych
wrote: I must be asking this question in a way that is throwing people off, because there seems to be a lot of resistance to actually answer the question. --- Weird, Isn't it? If you can post a schematic somewhere I'll give you a hand. -- John Fields Professional Circuit Designer |
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#2
Posted to alt.electronics
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changing from 1.5V battery to 9V battery
Thank you!
It is the FZ-1A listed on this diagram. http://www.thesortouts.org/images/MAESTRO4.GIF John Fields wrote: On Fri, 17 Mar 2006 08:22:43 -0800, GuitarPsych wrote: I must be asking this question in a way that is throwing people off, because there seems to be a lot of resistance to actually answer the question. --- Weird, Isn't it? If you can post a schematic somewhere I'll give you a hand. |
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#3
Posted to alt.electronics
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changing from 1.5V battery to 9V battery
On Fri, 17 Mar 2006 17:34:25 -0800, GuitarPsych
wrote: Thank you! It is the FZ-1A listed on this diagram. --- OK, It looks like you can just go ahead and connect the battery and adjust the 50k pot (shown as R6 on the attached simulation) to get the output you need, but you might have to short out the 2.2k and remove the 22k resistors shown on your schematic in order to keep the second transistor from going into saturation. I couldn't find a germanium PNP spice model, so I went ahead and used silicon just to see what would happen, and it looks like if you can get the base of the second transistor biased close enough to ground, you can get it to work. The thing hardly draws any current, so the 9V battery ought to last a while, but when it starts getting weak you can get sone extra life out of it by adjusting the pot again, as required... If you want to fool around with it you can download the simulator from: http://www.linear.com/company/software.jsp and here's the circuit file: Version 4 SHEET 1 952 680 WIRE -544 304 -544 -32 WIRE -544 544 -544 384 WIRE -400 304 -400 224 WIRE -400 544 -544 544 WIRE -400 544 -400 384 WIRE -400 592 -400 544 WIRE -304 224 -400 224 WIRE -192 224 -224 224 WIRE -96 224 -128 224 WIRE -96 352 -96 224 WIRE -96 544 -400 544 WIRE -96 544 -96 432 WIRE -32 224 -96 224 WIRE 32 -32 -544 -32 WIRE 32 176 32 -32 WIRE 32 288 32 272 WIRE 32 352 32 288 WIRE 32 544 -96 544 WIRE 32 544 32 432 WIRE 112 288 32 288 WIRE 192 -32 32 -32 WIRE 192 32 192 -32 WIRE 192 288 176 288 WIRE 192 288 192 112 WIRE 224 288 192 288 WIRE 224 352 224 288 WIRE 224 544 32 544 WIRE 224 544 224 432 WIRE 272 288 224 288 WIRE 336 -32 192 -32 WIRE 336 32 336 -32 WIRE 336 208 336 112 WIRE 336 240 336 208 WIRE 336 544 224 544 WIRE 336 544 336 336 WIRE 384 208 336 208 WIRE 496 208 448 208 WIRE 496 352 496 208 WIRE 496 544 336 544 WIRE 496 544 496 432 WIRE 624 208 496 208 WIRE 688 -32 336 -32 WIRE 688 16 688 -32 WIRE 688 128 688 96 WIRE 688 160 688 128 WIRE 688 544 496 544 WIRE 688 544 688 256 WIRE 752 128 688 128 WIRE 864 128 816 128 WIRE 864 288 864 128 WIRE 864 432 864 368 WIRE 864 544 688 544 WIRE 864 544 864 512 FLAG -400 592 0 SYMBOL pnp -32 176 R0 WINDOW 0 51 33 Left 0 WINDOW 3 48 63 Left 0 SYMATTR InstName Q1 SYMATTR Value 2N5087 SYMBOL res 16 336 R0 SYMATTR InstName R1 SYMATTR Value 10k SYMBOL cap 176 272 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C1 SYMATTR Value 1e-6 SYMBOL pnp 272 240 R0 SYMATTR InstName Q2 SYMATTR Value 2N5087 SYMBOL res 320 16 R0 SYMATTR InstName R2 SYMATTR Value 10k SYMBOL res -112 336 R0 SYMATTR InstName R3 SYMATTR Value 1e6 SYMBOL cap -128 208 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C2 SYMATTR Value .01e-6 SYMBOL res -208 208 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R4 SYMATTR Value 100k SYMBOL voltage -400 288 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value SINE(0 1 1000) SYMBOL res 176 16 R0 SYMATTR InstName R5 SYMATTR Value 470k SYMBOL res 208 336 R0 SYMATTR InstName R6 SYMATTR Value 50k SYMBOL cap 448 192 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C3 SYMATTR Value 1e-6 SYMBOL res 480 336 R0 SYMATTR InstName R7 SYMATTR Value 10k SYMBOL pnp 624 160 R0 WINDOW 0 43 34 Left 0 WINDOW 3 57 63 Left 0 SYMATTR InstName Q3 SYMATTR Value 2N5087 SYMBOL res 848 272 R0 SYMATTR InstName R8 SYMATTR Value 22k SYMBOL res 848 416 R0 SYMATTR InstName R9 SYMATTR Value 22k SYMBOL cap 816 112 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C4 SYMATTR Value .0033e-6 SYMBOL res 672 0 R0 SYMATTR InstName R10 SYMATTR Value 10k SYMBOL voltage -544 400 R180 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 9 TEXT -578 616 Left 0 !.tran .1 -- John Fields Professional Circuit Designer |
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#4
Posted to alt.electronics
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changing from 1.5V battery to 9V battery
Ok, thanks for the info. Regarding linear.com, I can't seem to figure
out what software to download ... there are many options yet none clearly say "circuit simulator". John Fields wrote: On Fri, 17 Mar 2006 17:34:25 -0800, GuitarPsych wrote: Thank you! It is the FZ-1A listed on this diagram. --- OK, It looks like you can just go ahead and connect the battery and adjust the 50k pot (shown as R6 on the attached simulation) to get the output you need, but you might have to short out the 2.2k and remove the 22k resistors shown on your schematic in order to keep the second transistor from going into saturation. I couldn't find a germanium PNP spice model, so I went ahead and used silicon just to see what would happen, and it looks like if you can get the base of the second transistor biased close enough to ground, you can get it to work. The thing hardly draws any current, so the 9V battery ought to last a while, but when it starts getting weak you can get sone extra life out of it by adjusting the pot again, as required... If you want to fool around with it you can download the simulator from: http://www.linear.com/company/software.jsp and here's the circuit file: Version 4 SHEET 1 952 680 WIRE -544 304 -544 -32 WIRE -544 544 -544 384 WIRE -400 304 -400 224 WIRE -400 544 -544 544 WIRE -400 544 -400 384 WIRE -400 592 -400 544 WIRE -304 224 -400 224 WIRE -192 224 -224 224 WIRE -96 224 -128 224 WIRE -96 352 -96 224 WIRE -96 544 -400 544 WIRE -96 544 -96 432 WIRE -32 224 -96 224 WIRE 32 -32 -544 -32 WIRE 32 176 32 -32 WIRE 32 288 32 272 WIRE 32 352 32 288 WIRE 32 544 -96 544 WIRE 32 544 32 432 WIRE 112 288 32 288 WIRE 192 -32 32 -32 WIRE 192 32 192 -32 WIRE 192 288 176 288 WIRE 192 288 192 112 WIRE 224 288 192 288 WIRE 224 352 224 288 WIRE 224 544 32 544 WIRE 224 544 224 432 WIRE 272 288 224 288 WIRE 336 -32 192 -32 WIRE 336 32 336 -32 WIRE 336 208 336 112 WIRE 336 240 336 208 WIRE 336 544 224 544 WIRE 336 544 336 336 WIRE 384 208 336 208 WIRE 496 208 448 208 WIRE 496 352 496 208 WIRE 496 544 336 544 WIRE 496 544 496 432 WIRE 624 208 496 208 WIRE 688 -32 336 -32 WIRE 688 16 688 -32 WIRE 688 128 688 96 WIRE 688 160 688 128 WIRE 688 544 496 544 WIRE 688 544 688 256 WIRE 752 128 688 128 WIRE 864 128 816 128 WIRE 864 288 864 128 WIRE 864 432 864 368 WIRE 864 544 688 544 WIRE 864 544 864 512 FLAG -400 592 0 SYMBOL pnp -32 176 R0 WINDOW 0 51 33 Left 0 WINDOW 3 48 63 Left 0 SYMATTR InstName Q1 SYMATTR Value 2N5087 SYMBOL res 16 336 R0 SYMATTR InstName R1 SYMATTR Value 10k SYMBOL cap 176 272 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C1 SYMATTR Value 1e-6 SYMBOL pnp 272 240 R0 SYMATTR InstName Q2 SYMATTR Value 2N5087 SYMBOL res 320 16 R0 SYMATTR InstName R2 SYMATTR Value 10k SYMBOL res -112 336 R0 SYMATTR InstName R3 SYMATTR Value 1e6 SYMBOL cap -128 208 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C2 SYMATTR Value .01e-6 SYMBOL res -208 208 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R4 SYMATTR Value 100k SYMBOL voltage -400 288 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value SINE(0 1 1000) SYMBOL res 176 16 R0 SYMATTR InstName R5 SYMATTR Value 470k SYMBOL res 208 336 R0 SYMATTR InstName R6 SYMATTR Value 50k SYMBOL cap 448 192 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C3 SYMATTR Value 1e-6 SYMBOL res 480 336 R0 SYMATTR InstName R7 SYMATTR Value 10k SYMBOL pnp 624 160 R0 WINDOW 0 43 34 Left 0 WINDOW 3 57 63 Left 0 SYMATTR InstName Q3 SYMATTR Value 2N5087 SYMBOL res 848 272 R0 SYMATTR InstName R8 SYMATTR Value 22k SYMBOL res 848 416 R0 SYMATTR InstName R9 SYMATTR Value 22k SYMBOL cap 816 112 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C4 SYMATTR Value .0033e-6 SYMBOL res 672 0 R0 SYMATTR InstName R10 SYMATTR Value 10k SYMBOL voltage -544 400 R180 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 9 TEXT -578 616 Left 0 !.tran .1 |
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#5
Posted to alt.electronics
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changing from 1.5V battery to 9V battery
GuitarPsych wrote:
I can't seem to figure out what software to download there are many options yet none clearly say "circuit simulator". You're looking for a SPICE package: Linear Technology's Simulation Program with Integrated Circuit Emphasis (LTspice) aka "SwitcherCAD III". (Direct link) http://ltspice.linear.com/software/swcadiii.exe .. .. Your posting style: The gold standard is to leave the name of the person to whom you are responding and just enough of the previous post to give "context" which reminds the next reader/responder what the last part of the thread mentioned. Your new text goes BELOW that. (Note how I did it.) |
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