2A3 SET dc coupled EL84 driver.

RE: 2A3 SET dc coupled EL84 driver., posted on February 27, 2024 at 13:29:23
Ian L Audiophile Posts: 1371 Joined: July 5, 2002	I wondered who would be the first to take up that idea. Nice going! Sound assessment?

Not my idea. From a schematic I found in 2014, posted on February 28, 2024 at 01:22:15
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	amps by Torsten Eisenberg. I just made a parafeed version because that is the iron I had lying about for a 2a3 amp. How it sounds. My adult kids who never seem to be impressed by any of my previous amps (mostly el84 se) said it was next level. It is the quietest and best sounding amp I've ever built.

RE: 2A3 SET dc coupled EL84 driver., posted on February 28, 2024 at 20:21:24
Ian L Audiophile Posts: 1371 Joined: July 5, 2002	Ah, I see. When I saw your post I remembered a post PJ made back when Mike was doing the FS-100's and thought you'd taken the idea from there. Not surprised your kids like them. Nice hammertone colour on the lams!, by the way.

You are correct about the parafeed part! That was PJ's, posted on February 29, 2024 at 00:14:00

Bas Horneman
Audiophile

Posts: 4109
Joined: March 28, 2001

post.

Thanks..yeah the colour was just serendipitous. Found it at a 2nd hand store. And probably subconsciously rememembered Don Garber's preamp with a very similar if not the same colour.

something special about a pentode driving any triode..., posted on February 29, 2024 at 12:56:37
Cleantimestream Audiophile Posts: 7576 Location: Kentucky Joined: June 30, 2005	The Mind has No Firewall~ U.S. Army War College.

Pretty! Mine are triode wired though, posted on March 1, 2024 at 00:50:53
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	Did think about converting to pentode. Once had a 300b driven by a pentode wired el84. But the rest of the amp was not up to scratch...so it lives no more.

That's some very nice Chassis Work you have there! ........ nt, posted on March 1, 2024 at 07:06:55
Cut-Throat Audiophile Posts: 18449 Location: Minneapolis - St.Paul Area Joined: September 2, 2000 Contributor Since: May 16, 2021	nt

Thank you! nt, posted on March 1, 2024 at 07:19:38
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	.

Did you do all of the Metal Work and Wood Work yourself? ........nt, posted on March 1, 2024 at 10:35:17
Cut-Throat Audiophile Posts: 18449 Location: Minneapolis - St.Paul Area Joined: September 2, 2000 Contributor Since: May 16, 2021	nt

RE: You are correct about the parafeed part! That was PJ's, posted on March 3, 2024 at 09:48:50

caffeinator
Audiophile

Posts: 1729
Location: Pacific Northwest
Joined: August 22, 2003

Beautiful work! I have a pair of those chokes in my stash, waiting for time and inspiration. Thank you for supplying the inspiration! Time is another problem entirely.

I love that blue/green iridescent hammertone. Do you happen to have a brand and color name for that? I see you posted you found it at a second-hand store...what a great find! It's drop-dead gorgeous! Hoping it could still be sourced somewhere.

Bought the oak frame. Ordered the top plate, posted on March 4, 2024 at 00:42:46
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	to fit the oak frame. Rest of the metalwork I did myself.

I did find it again in the Netherlands., posted on March 4, 2024 at 00:47:50
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	It was Hammerite and called middle green / verte jade.

Don Garber used such a colour a long time ago, posted on March 4, 2024 at 00:50:57
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	.

RE: Bought the oak frame. Ordered the top plate, posted on March 4, 2024 at 00:52:12
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	.

Very Nice ! ..... nt, posted on March 4, 2024 at 07:21:30
Cut-Throat Audiophile Posts: 18449 Location: Minneapolis - St.Paul Area Joined: September 2, 2000 Contributor Since: May 16, 2021	nt

Analog Ethos, posted on March 5, 2024 at 04:29:36

Gerry E.
Audiophile

Posts: 2196
Location: Saratoga Springs, NY
Joined: February 19, 2000

Not exactly the same color but Analog Ethos is another amp builder that likes a similar green - use link below.

Gerry

Analog Ethos

I've seen it. Like the legs...nt, posted on March 7, 2024 at 02:24:17
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	.

RE: Don Garber used such a colour a long time ago, posted on March 7, 2024 at 10:22:31

421a
Audiophile

Posts: 119
Joined: May 3, 2022

Yep, Don was a world class Graphic Artist.
(and colorist, I might add)
When I was at the memorial, one of these (2b)
was connected to a pair of 300B's.
"Altec" green always looks good.

I like the Analog Ethos color also, but since I
live in Palm Springs, I see the green ("seafoam"), orange and cream
everywhere.
(My front door is lime.)

Don Garber was indeed a world class artist!, posted on March 8, 2024 at 04:34:11
Bas Horneman Audiophile Posts: 4109 Joined: March 28, 2001	I have a file with many of his creations...and everytime I look at the pics I think to myself. What a genius this guy was!

RE: something special about a pentode driving any triode..., posted on March 24, 2024 at 13:51:14
Todd Krieger Audiophile Posts: 37404 Location: SW United States Joined: November 2, 2000	Is this a production amp, a DIY amp, or something you had built per your specs? (I could not find anything on the amp in a Google search.) Thank you much.

other than trophybshoo doing the laser cut ... , posted on March 25, 2024 at 06:12:16
Cleantimestream Audiophile Posts: 7576 Location: Kentucky Joined: June 30, 2005	I built this from the ground up. . Some chassis I build bespoke but this particular one I liked and was built in China. The circuit I designed utilizing an 8608 tube. This tube was quite rare and only used in a Tectronix dual tracer oscilloscope so far as I know. The Mind has No Firewall~ U.S. Army War College.

SET Asylum

2A3 SET dc coupled EL84 driver.

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