Hi,
does anyone have LTSpice (or similiar) models for the 6X4 Rectifier Tube?
I want to simulate a PSU. Duncan PSU Designer can simulate it. But I want to understand how a PSU is behaving if I use Diodes in parallel e.g. used in Kondo Amps.
Duncan has some Rectifier Tube Models but 6x4 is not included.
Any Ideas for sources?
Thx and cheers
does anyone have LTSpice (or similiar) models for the 6X4 Rectifier Tube?
I want to simulate a PSU. Duncan PSU Designer can simulate it. But I want to understand how a PSU is behaving if I use Diodes in parallel e.g. used in Kondo Amps.
Duncan has some Rectifier Tube Models but 6x4 is not included.
Any Ideas for sources?
Thx and cheers
You really don't need a tube rectifier model if you parallel it with SS diodes. The outcome by far is dominated by the SS behaviour.
Best regards!
Best regards!
I'm not sure where Duncan derived rectifier model, but it's SS model with parameters adjusted to suit tube IV curve, there is a 6x4 model.
These model is converted to LTSpice model from Duncan's web site:
.model GZ34 D(Is=1e-2 RS=36 Cjo=30p vj=2 N=80 bv=1500 mfg=TFK type=vacuum )
.model 6X4 D(Is=1e-2 RS=121 Cjo=20p vj=2 N=256 bv=1250 mfg=RCA type=vacuum )
.model 5R4GY D(Is=1e-2 RS=150 Cjo=30p vj=2 N=305 bv=3100 mfg=RCA type=vacuum )
.model EZ81 D(Is=1e-2 RS=53 Cjo=5p vj=2 N=163 bv=330 mfg=Mazda type=vacuum )
But alternatively you can derive LTSPice model directly from original IV curves using ".subckt" rather than ".model", as posted by me here:
https://www.diyaudio.com/community/threads/vacuum-tube-spice-models.243950/post-6229593
You can then have a clearer picture of model and source, other to plot the IV curves and compared with original.
These model is converted to LTSpice model from Duncan's web site:
.model GZ34 D(Is=1e-2 RS=36 Cjo=30p vj=2 N=80 bv=1500 mfg=TFK type=vacuum )
.model 6X4 D(Is=1e-2 RS=121 Cjo=20p vj=2 N=256 bv=1250 mfg=RCA type=vacuum )
.model 5R4GY D(Is=1e-2 RS=150 Cjo=30p vj=2 N=305 bv=3100 mfg=RCA type=vacuum )
.model EZ81 D(Is=1e-2 RS=53 Cjo=5p vj=2 N=163 bv=330 mfg=Mazda type=vacuum )
But alternatively you can derive LTSPice model directly from original IV curves using ".subckt" rather than ".model", as posted by me here:
https://www.diyaudio.com/community/threads/vacuum-tube-spice-models.243950/post-6229593
You can then have a clearer picture of model and source, other to plot the IV curves and compared with original.
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Thankyou this is what I was searching.
About the Models he is briefly mentioning something about it here:
https://www.duncanamps.com/spicevalvesr.html
About the Models he is briefly mentioning something about it here:
https://www.duncanamps.com/spicevalvesr.html
There is a 6x4 model in Ayumi data base:
https://www.diyaudio.com/community/threads/vacuum-tube-spice-models.243950/post-7076576
https://www.diyaudio.com/community/threads/vacuum-tube-spice-models.243950/post-7076576
Thank you I have downloaded the Ayumi base already ..and I was looking for 6X4 ..but somehow I must have overlooked it. Cool that it is there 🙂