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Re: LTspice Save Internal Device Voltages
I never knew exactly what those "internal device" nodes were, and I think it was never explained, in the years I have been following this group. I suspect those internal nodes might be internal to
By Andy I · #158582 ·
LTspice Save Internal Device Voltages
On LTspice Control Panel->Save Default tab there is a checkbox named "Save Internal Device Voltages". I believe it is supposed to save the voltages of "device internal nodes". Take for instance an
By Carlo · #158581 ·
Re: 12AU7 tube heater model
Sorry, I misinterpreted that last line in the netlist. A G source is a voltage-dependent current source, so it defines a transconductance, not a simple conductance. I think that the syntax in the Help
By John Woodgate · #158580 ·
Re: Interpreting Noise Simulation Results
Further to what I wrote below, I have uploaded a modified version of your schematic </g/LTspice/files/Temp//Amplifier_Noise_ATC.zip> that uses a single amplifier circuit but switches
By Tony Casey · #158578 ·
Re: 12AU7 tube heater model
Sorry, what kind of controlled source is actually the G source named "hot" within the SUBCKT heater model ? From LTspice help: Does it mean that Ghot is just a behavioral voltage source, or that it is
By Carlo · #158577 ·
Re: 3 Phase Voltage Sense model
For curiosity What device are you driving with Vout(ABC) ? My home is "3Phased"? :)
By Andr¨¦ ROJAS · #158576 ·
Re: 12AU7 tube heater model
I suspect that the 'error message' is nothing to worry about. the current source has infinite impedance, so the U1:HB node appears not to be connected. RHO=42 means that the heater is set for
By John Woodgate · #158575 ·
Re: 3 Phase Voltage Sense model
Symbol pin order is good with "3Phase_Voltage_Sense.asy" Delete "3Phase_Voltage_Sense.asy" Load "3Phase_Voltage_Sense_model.asc" Generate "3Phase_Voltage_Sense_model.asy" by clicking "Hierarchy/Open
By Andr¨¦ ROJAS · #158574 ·
12AU7 tube heater model
Starting from the 12AU7 SUBCKT from http://www.duncanamps.com/spice/valves/dmtriodep.inc , I created a SUBCKT model for the 12AU7 heater, namely: I used it in a simple schematic doing a DC Sweep
By Carlo · #158573 ·
Re: PWM Timing Causing Shoot-thru
May, I don't know if we will see your updated file with the missing LTspice symbol, or if you consider the problem to be solved already. But I want to mention that your signals HCF and LCF did not
By Andy I · #158572 ·
Re: 3 Phase Voltage Sense model
Larry, Here is an actual mistake, and the likely cause of the problem you have.? The pin-order of the symbol does not match the pin-order of the included netlist model. Symbol's pin-order:? Neutral
By Andy I · #158571 ·
Re: 3 Phase Voltage Sense model
Larry, Here are some issues to comment on: (1)? Your original schematic (3Phase_Voltage_Sense_circuit.asc) leaves the Neutral net floating.? Why?? Did you really want it to float like that?? Also,
By Andy I · #158570 ·
Locked Re: Windows XP installation disk
Off-topic.? And it suggests it is not legal. This topic is closed.? No replies, please. This group is about LTspice.
By Andy I · #158569 ·
Locked Windows XP installation disk
Does anyone have a Windows XP install disk they could give or sell me? ?Or a copy with the password decrypted. I need a pukka XP machine to run the software I wrote myself in da last Millenium.
By Richard Lee · #158568 ·
Re: Weird results DC operating point for Tube amplifier
You're correct.
By Jerry Lee Marcel · #158567 ·
CD4000_v(65).lib with syntax error messages updated to CD4000_v(65a).lib
hi I've corrected and uploaded CD4000_v(65a).lib The only corrections made were to the td1,td2,td4 equations used in CD4008B sub circuit. The unbalanced braces/parenths caused syntax error messages in
By eetech00 · #158566 ·
Re: Weird results DC operating point for Tube amplifier
Oh, I get that by putting a 10cm long unobtanium tube over the headphone cable. -- This email has been checked for viruses by AVG antivirus software. www.avg.com
By John Woodgate · #158564 ·
Re: Weird results DC operating point for Tube amplifier
I have to confess that I was misled by this at an early age, about 13 I think.? The valve doesn't know what the supply voltage is with zero signal. It only knows the voltage between anode and
By John Woodgate · #158563 ·
Re: Interpreting Noise Simulation Results
manauo, Almost all the simulated noise in your circuit comes from the circuit itself.? If there was noise in the sources driving it (V1, V2, V5, V6), it is not present in the simulation.? Those
By Andy I · #158562 ·
Re: Weird results DC operating point for Tube amplifier
Any tube sound this design gives you is weird tube sound. Sent: Thursday, February 20, 2025 5:23 PM To: [email protected] Subject: Re: [LTspice] Weird results DC operating point for Tube amplifier
By Christopher Paul · #158561 ·