- 2,170 Posts. Joined 5/2006
- Location: NC
- Select All Posts By This User
- brandDIYtagged by joe, 2/11/15
Related Forum Threads
- The Soekris R-2R DAC: Technical Details Last post on 1/23/17 at 12:09pm in Dedicated Source Components
- "Double Barrel" Fully machined aluminum closed back headphones Last post on 2/23/15 at 9:47am in DIY (Do-It-Yourself) Discussions
- CUSTOM DIY NOISE CANCELING HEADPHONES BETTER THAN BOSE QC15. For 30 Bucks! Last post on 8/13/12 at 11:32am in Portable Headphones, Earphones and In-Ear Monitors
- FS: Millett Hybrid MiniMax Last post on 10/29/11 at 3:04pm in Amplification For Sale / Trade
- I think I blew out my Left channel on my GILMORE LITE Last post on 11/30/10 at 4:13am in Headphone Amps (full-size)
DIY Cable Info and Resources
Last edited: 3/18/16
- Diy Beginners GuideLast edited: 7/22/13
- List Of Diy Headphone AmpsLast edited: 11/22/12
Design & Comfort: Why can't you all do this? AudioQuest makes their first headphone and immediately gets so many things right that other companies seem to completely ignore. They even had the...
Bought these bad boys on sale from Harman Audio. Very clear and balanced sound for the price range, I have also had some good Grado SR80i headphones that I gave to my brother but the AKG K550 has...
Introduction Based on the very successful Delta earphones previously, Brainwavz has come up with a second version of the Delta’s, now upgraded with Bluetooth 4.1 connectivity. As these are...
Introduction FiiO X5 3rd generation is the successor of the loved by many X5 2nd generation DAP from FiiO. I requested to be a part of the tour for X5 3rd gen because I really wanted to hear...
After spending over a week of daily listening to these ciems I can confidently say that I have made an excellent choice with these ciems. There is nothing that i can say that hasn't been already...
A DIY electrostatic amp for intermediate DIYers? - Page 40post #586 of 5939/20/09 at 7:17pmare there any pics of this design pabbi1? please please please
Head-Fi's Best Sellerspost #587 of 5939/20/09 at 7:37pmpost #588 of 5939/21/09 at 1:19ampost #589 of 5939/21/09 at 1:35ampost #590 of 5939/30/09 at 1:04ampost #591 of 5939/30/09 at 1:49ampost #592 of 59311/16/11 at 9:37am
Maybe some people are more immune to electrical shock than others. It is not the voltage but the current that kills. I worked as an electrician on systems from millivolt WWII ear signaling to MV which is 15KV to 45KV. I never took any direct shocks on any system over 600VAC nominal, but got nailed by 120, 240, and 277 a few times. I still think finding the B+ of an old Valco Supro which was located in the most dangerous place inside the amp anyone could ever find was one of the worst shocks I ever got. I did get nailed by a 7500 volt hi pot one damp rainy day. That was pretty painful too. Maybe I am lucky. Working with electricity 40-84 hours a week you will get zapped. I have seen some people with holes blown in them from 120 volts, and worse from 277. I have no clue why it just scares me and makes me jump, and other people have died. AS one person said, "Keep one hand in your pocket" as it is great advice so as not to pass current across your heart. Also make some jumpers with a 1K-10K resistor to put across filter caps. They can actually recharge themselves and nail you after you think you have shorted them and have them discharged. Some say they draw energy from other caps in the amp. I have been nailed by them after reforming the things and discharging them upon removal from the power supply and load. They can be fine right after taking them off my reforming rig then you pick one up an hour later and get a surprise. I have been using some old Koss ESP10s, and Staxx electrostatic headphones. My only complaint is the 1970s Marantz amps won't work with the Koss due to a negative feedback loop, so I have to use another power amp, and I do not want to drag one of the tube amps into the shop area.post #593 of 59311/26/11 at 7:22pm
Has anyone started making any plans for the electrostatic headphones? I have some transformers that are too high a voltage but too low current to do much else with. I have a beefy one that with a doubler comes out to 700VDC plus, but I have been using those in pairs and making the current high enough to drive some nice tubes along at 77 watts. I used something like KT88s only with a plate cap. They take 800 VDC easily. I ran them through a pair of Partridge designed transformers I had wound with 1,2,4,8,16 ohm taps and 100 volt out for a PA distribution line. Sorry to be cryptic about the tubes I use. For now these are affordable in the Mullard or GEC UK made brand. (affordable on my monthly pittance anyway) My doctor bought the AR RT600s and $10K in 6550 tubes. I would love to know where they went. The govt seized all his stuff for fraud, and some other DEA violations. 600+ wattsx2 in a house? Oh well to each his own.
- A DIY electrostatic amp for intermediate DIYers?
Head-Fi's Best Sellers
- Diy Beginners Guide
- › Grado Fan Club! 12 seconds ago
- › Sony/HTC/AKG/MISC Thread 34 seconds ago
- › The Astell & Kern AK240 59 seconds ago
- › Unbalanced DAC with Balanced Amp 2 minutes ago
- › Hello everyone...new user here ! ! ! 2 minutes ago
- › New M8 DAC from SMSL (9018/XMOS) 4 minutes ago
- › Chord Mojo DAC-amp ☆★►FAQ in 3rd post!◄★☆ 4 minutes ago
- › Sennheiser hd 558 vs ath-m50x 4 minutes ago
- › [FS] 64audio A6 Adel version 4 minutes ago
- › Classical music discussion, what do you like? 4 minutes ago
- › AudioQuest - Nighthawk Headphones by snapacap
- › AKG K 550 by Simurgh
- › Brainwavz BLU-Delta Bluetooth Earbud Wireless Noise Isolating... by chompchomps
- › FiiO X5 3rd gen Premium Hi-Res DAP by Dobrescu George
- › Noble Audio Kaiser 10 by ss5972
- › Joyroom JR-E107 Metal Headphone In-Ear Earphone With Control And... by B9Scrambler
- › Chord MoJo by mswlogo
- › RHA CL1 Ceramic by Jackpot77
- › iFi Audio micro iDSD by BillsonChang007
- › EarSonics SM3 Universal Fit IEM by mrstrangeguy
- › Head-Fi Buying Guide (Travel Headphones)
- › Head-Fi Buying Guide (CanJams)
- › FiiO X3II DAP firmwares with custom themes
- › Flawless Album Suggestions
- › The Audiophile Scene in a Third World Country...
- › Mad Lust Envy's Headphone Gaming Guide,...
- › Mad Lust Envy's Headphone Gaming Guide,...
- › Mad Lust Envy's Headphone Gaming Guide:...
- › Chord Mojo FAQ
- › Head-Fi Logo Gear