Did a few overlay plots in ARTA to look for differences when using TK's 220 ohm damping resistor across 320mH L3 choke . Refer to previous thread on this subject.Also tested at 5KHz , overlay difference of 0.
Adding an extra 15uF to C2 dropped the mVAC at the amp speaker posts from 5mV to 3mV with the damping resistor installed.
Edit: I took individual spectral graphs with and without the 220 ohm damping resistor across L3.
The new graphs seem to match the spice B+ vs. Hz plots by TK.
I probably had the overlay color mixed up on the now deleted graph I posted previously.
The energy spike that appeared below 60Hz was a random event that occurs from time to time on the analyzer , not sure what causes it. It happened with or without the damping resistor installed.
Edits: 10/19/16
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Topic - 3 stage flywheel : mH choke damping resistor - deathtube 667 18:44:43 10/18/16 (11)
- New Plots - Triode_Kingdom 20:25:17 10/19/16 (5)
- RE: low Hz bandwidth sweep ... - deathtube 667 14:04:14 10/20/16 (4)
- RE: low Hz bandwidth sweep ... - Triode_Kingdom 22:10:21 10/20/16 (3)
- RE: low bandwidth sweep to 20Hz ... new graph - deathtube 667 15:47:03 10/21/16 (2)
- RE: low bandwidth sweep to 20Hz ... new graph - Triode_Kingdom 22:11:16 10/21/16 (1)
- RE: thanks for the help ... - deathtube 667 12:47:17 10/22/16 (0)
- RE: correction : new graphs posted above ... - deathtube 667 18:03:37 10/19/16 (0)
- RE: 3 stage flywheel : mH choke damping resistor - Triode_Kingdom 08:21:15 10/19/16 (1)
- RE: 3 stage flywheel : mH choke damping resistor - deathtube 667 08:42:37 10/19/16 (0)
- RE: 3 stage flywheel : mH choke damping resistor - Chip647 08:08:18 10/19/16 (1)
- RE: can't see the graphs ... - deathtube 667 10:18:55 10/19/16 (0)