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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: Here's the chart you ask for posted by sony6060 on July 23, 2023 at 16:34:14:
If you find charts to be confusing or not as explicit as you would like, just use PSUD to model a supply. If you design a supply that violates the limits of a particular rectifier tube type it will tell you.Earlier, Tre posted two PSUD sims of power supplies using a 5AR4 whose data sheet lists 60uf as an input cap.
The first PS used a 20uf cap and PSUD warned that the 20uf was too large. This was due to the particular specs of that design - specifically the combination of very low PT resistance and a relatively large current load. The second PS he posted had different design specs and used a 220uf cap and PSUD indicated that this was OK - when used under those conditions.
So the cap value listed in the data sheet is neither the maximum you can use under all conditions nor is it safe to use under all conditions.
If you set PSUD up to simulate a particular PS you can easily play with cap values and find out what the maximum cap value is for that particular supply. You may not want to use the maximum value, for a variety of reasons, but it will tell you exactly how far you can go without violating the data sheet specs and damaging the tube.
Edits: 07/23/23
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Follow Ups
- RE: Here's the chart you ask for - FlaCharlie 18:56:51 07/23/23 (0)
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