Tubes Asylum

RE: A critical inductance choke input filter....

76.90.100.230

Tre'

In Reply to: RE: A critical inductance choke input filter.... posted by lotsmorebetter1 on July 16, 2023 at 09:26:09

My filament supplies for the direct heated tubes are LCRCL and my heater supplies for the indirect heated tubes are LCRC with critical inductance input chokes and a lot of capacitance. In both cases the ripple is almost non-existent.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

Edits: 07/25/23

Follow Ups:

RE: A critical inductance choke input filter.... - lotsmorebetter1 16:15:31 07/25/23 (2)
Thank you. That is very helpful. IN both of your situations, does the resistor do anything to remove some of the noise, or is it only to reduce some of the voltage?
- RE: A critical inductance choke input filter.... - Tre' 16:20:06 07/25/23 (1)
  Both. The resistor value is chosen to dial in the voltage I need and a resistor before a cap will allow the cap to better filter the ripple.
  Tre'
  Have Fun and Enjoy the Music
  "Still Working the Problem"
  
  Edits: 07/25/23
  - RE: A critical inductance choke input filter.... - lotsmorebetter1 17:02:24 07/25/23 (0)
    got it, thanks.

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