[SOLD: Pair Capitol Heresy III Ebony Finish]

I am selling my pair of the special edition Capitol Heresy III. Excellent condition. No original boxes. But, packed in double-walled individual shipping boxes. Ready to ship to continental US.

 

Asking $1,500 for the pair shipped via FedEx. Will discount for local pickup in the NYC area.

 

Sold.

 

Also, selling a pair of SB-1000 SVS sub woofers in piano gloss black finish. Excellent condition. Asking $600 shipped via FedEx. Also, packed in individual shipping boxes.

 

SB-1000s sold and to be shipped.

 

First time posting in the Garage Sale section, so let me know if you have questions.

 

Jose

 

Capitol-Heresy-III-Ebony-Spec-Sheet-v01.pdf

[Book recommendation?]

On 4/18/2020 at 10:32 AM, -Russian-Spy- said:

Hey guys,  I was hoping you guys had a few recommendations on books to learn basic circuitry?  I would really like something that can help read/build circuit diagrams for valve amplifiers. Hopefully for a beginner and relatively easy to digest.  I currently have a bit of time in quarantine, and would like to spend some more time reading.  My immediate goal is to build a few circuits I've seen floating around on here, help is appreciated!

 

Here are my suggestions, in order of easy to digest:

 

Tube Audio:

Beginner's Guide to Tube Audio Design, Bruce Rozenblit

Principles of Power (A Practical Guide to Tube Power Amplifier Design), Kevin O'Connor

Valve Amplifiers, Morgan Jones

The Tube Preamp Cookbook, Allen Wright

Radiotron Designer's Handbook, F. Langford-Smith

 

Basic Electronics:

Beginners Guide to Electronics, Martin Pickering

 

Also:

Glass Audio reprinted numerous articles (Audio Classroom series) by Norman Crowhurst on tube audio design which may still be found online

Back Issues of Vacuum Tube Valley (out of print) which can found as pdfs online, I think

Back Issues of Sound Practices (out of print), don't know if these are available online

 

 

 

[Cornwalls 4 or heresy 4]

On 10/11/2020 at 1:56 AM, dtel said:

I don't know what would be ideal, but They will fill a large room and still sound fine in a small one. I don't have the 4 version, but have the 3 and there in a roughly in a 12 x 12 bedroom and sound really good. 

At one time they were in the living room which is 24' wide and 18' deep open to another 16" behind that. On the 24' wall they easily filled both areas roughly 24" w x 34' d.

 

And the 4 version does sound better, very nice speaker that will outlast you.

 

In a 12x12 room, how did you handle the room node peaks and dips below 100Hz?

 

I have the Heresy IIIs, in a ~12x12 setup within a 18x12 room (dual use), and raised off the floor about 15inches. Found that the front of the speakers need to be 9ft from the listening position for best sound. Any closer, and the driver/woofer alignment was off.

 

Been wanting to upgrade my Heresy IIIs, and thinking about the Cornwall IVs (since I am a former owner of Cornwall IIs), and can't convince myself they would fit in such a space.

 

   

[Pictures of your Tube Amplifiers]

2 hours ago, seti said:

 

Thanks for sharing. What software did you use to draw schematics? Very nice.

 

Anyone can make a great looking chassis from FPE but it takes real skill and ingenuity to do it your way... Amazing..

 

I am planning a 112A Preamp with Coleman Regs. I have all the parts just want the chassis to be perfect. I got power supply modules from intact audio.

 

 

 

 

 

 

I used EazyDraw, a vector drawing program for MacOS.

 

Yeah, if I build another amp, I will be using the Coleman Regulators again and with Dave's modules.

[Pictures of your Tube Amplifiers]

11 minutes ago, seti said:

 

How long did it take you to get to this point. These look pro built. Amazing.

 

Who did you use for chassis plates?? I'm looking at Landfall and Front Panel Express. I like the new HV printing.

 

 

 

 

 

 

The original build was maybe 10 years ago. About 5 years ago I re-built the design with changes to the filament supplies; adding the Rod Coleman voltage regulators; and adding a time delay for the high voltage supply. And also re-doing the chassis with cleaned-up PTP wiring.

 

The chassis plates are just aluminum plates which I hand-drilled. Then spray-painted in the foyer of my apartment. (Don't think I'll ever do that again.) I thought about using FPE, but the cost would have been too high. The printing on the plates is just custom dry transfers.

 

Here is the schematic:

 

 

 

 

[Pictures of your Tube Amplifiers]

21 minutes ago, henry4841 said:

Lundahl OPT's as well? Looks like a quality build. 

 

The OPTs are actually Tribute amorphous core. The Lundahls are chokes and two filament transformers.

 

The two power transformers (in blue covers) are custom wound by EP (Jack Eliano).

[Pictures of your Tube Amplifiers]

Thought I would join in. Here is my 300B/2A3 SET amplifier. Powers a pair of Heresy III (but can also be used as a headphone amp).

 

High voltage and filament voltage is adjustable for either 300B or 2A3 with switches. Bias is adjustable for the power tubes and 6V6 driver tubes. 

 

Separate power supplies for output stage and input/driver stage. And separate filament supplies for each of the power tubes. Hybrid rectification.

 

Each chassis weighs a ton.

 

Signal chassis:

 

 

Power Supply:

[Forte iii in SE Ebony Finish]

4 hours ago, tomy2 said:

 

I saw and heard some Heresy III's recently that were in the ebony finish with the silver lustre grills and they looked awesome. You'll be happy. If you haven't already contacted Cory at MetropolisLakeOutfitters about his pricing for the Forte III's you should. You might be surprised how good of a deal he can get you.

 

The Heresy III Capitol Edition are smashing in person. Got mine last week.