Basic differences among power supplies

too bad chokes are costly. They do wonderful things for the quality of amp power supplies. And it's time more audiophiles realized the power supply is the direct source of current to the speakers. What we call the amplifier is a complex circuit that basically opens and closes the power supply so it looks like a bigger version of the input. So the more perfect the power supply the more perfect the amplifier.

Not nearly that simple, posted on May 18, 2025 at 06:08:45
Triode_Kingdom Audiophile Posts: 10392 Location: Central Texas Joined: September 24, 2006	There's more to this than ripple content. Output impedance of the supply and EMI radiation are also important characteristics for an audio amplifier. The most suitable in your illustration are the "C" filter and the "CLC." All the others are problematic for various reasons.

RE: Basic differences among power supplies, posted on May 18, 2025 at 08:28:01
Tre' Industry Professional Posts: 18020 Location: So. Cal. Joined: February 9, 2002	B and E are the only ones with sinusoidal ripply. Add one more choke and one more cap to E and be happy. Tre' Have Fun and Enjoy the Music "Still Working the Problem"

RE: Basic differences among power supplies, posted on May 21, 2025 at 02:10:07
Stephen R Audiophile Posts: 1436 Joined: January 11, 2002	Hard to beat choke input supplies. Agree on an extra LC to make even better.

RE: Basic differences among power supplies, posted on May 21, 2025 at 19:54:07
Triode_Kingdom Audiophile Posts: 10392 Location: Central Texas Joined: September 24, 2006	Choke input supplies need at lease a small capacitor ahead of the choke. Otherwise, the choke creates large voltage spikes at its input terminal and significant EMI that will travel throughout the amplifier.

RE: Basic differences among power supplies, posted on May 21, 2025 at 23:26:35
Stephen R Audiophile Posts: 1436 Joined: January 11, 2002	If the choke is designed for that use, a relatively high AC voltage across it, there isn't a problem.

I use .67 cap (or smaller) in all my choke input supplies... The so called flywheel design sounds superb, posted on June 9, 2025 at 09:46:48
Cleantimestream Audiophile Posts: 7623 Location: Kentucky Joined: June 30, 2005	,�.47 cap.... .32 Henry 600 ma. choke 10 ohm, 20 uf film cap, .7 filament choke dcr .7 (this thing is huge and comes from old Allen organs FOR filament) 50 uf film cap... Then use 10uf for rest of the circuit save for Elna Silmic 2 63 or 100 uf for filament. Depends on circuit. The Mind has No Firewall~ U.S. Army War College.

flywheel design- Pasternack?_nT, posted on June 9, 2025 at 10:20:22
Cleantimestream Audiophile Posts: 7623 Location: Kentucky Joined: June 30, 2005	! The Mind has No Firewall~ U.S. Army War College.

I use .67 cap (or smaller) in all my choke input supplies... The so called flywheel design sounds superb, posted on June 11, 2025 at 07:07:54
Cleantimestream Audiophile Posts: 7623 Location: Kentucky Joined: June 30, 2005	,�.47 cap.... .32 Henry 600 ma. choke 10 ohm, 20 uf film cap, .7 filament choke dcr .7 (this thing is huge and comes from old Allen organs FOR filament) 50 uf film cap... Then use 10uf for rest of the circuit save for Elna Silmic 2 63 or 100 uf for filament. Depends on circuit. The Mind has No Firewall~ U.S. Army War College.

Tube DIY Asylum

Basic differences among power supplies

95.249.198.17