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Parafeed tube amp

WebMar 17, 2024 · The first is nearly complete, a MH4/REN904 MOSFET CCS loaded input, 6A5G SET output design using Lundahl iron (mid-build photo attached). I am now working on my second design. Nothing innovative, but at a high level, it is a MOSFET CCS loaded 6J5 input and MOSFET CCS loaded 45 parafeed output headphone amp. I am currently working … WebMar 30, 2024 · So a generic parafeed circuit like this, which is very similar to the Hagerman Tuba for example, or most other simple parafeed designs, can really make your cans come alive. I've attached the circuit I used for reference. One thing to watch out for is high frequency oscillations in tubes like this. Not what you want in headphones.

Kaiju 300B Amplifier Kit - Bottlehead

WebIn order to make it a parafeed circuit, one need only AC (capacitor) couple it to an output transformer. The transformer works to transform the high impedance, high voltage, and … http://tubelab.com/articles/ideas/single-ended-output-stages/ pahla b upper body strength https://bohemebotanicals.com

CCS Loaded Parafeed Output - Design Considerations? - Bottlehead

WebNone of my other tube amps - 2A3 Moondogs, WE91 300B monos / top level kit version from DIY Hifi Supply or my pimped Dynaco ST70 (Welborne Labs upgrade kit) - come even close to what this transformer coupled tungsten filament 801A is capable of. OK, especially the Dynaco and also the WE91 amps deliver more powerful bass with the above-mentioned ... WebApr 2, 2024 · #1 This is a thread about parafeed headphone tube amps. It's open for anyone and everyone to join in and add their experiences, experiments, tips and traps. The more … WebSep 6, 2024 · Here is the schematic, although it is not comprehensive. Parafeed capacitance was determined experimentally by taking FR sweeps of various capacitances (courtesy of cheap Solen caps), along with subjective listening impressions. Ultimately decided on 6.6uF made up of two 3.3uF in parallel. Bias points: 6J5 B+: 380V 6J5 plate to cathode: 200V pahla b walk off the weight day 17

DIY Parafeed Headphone Amp diyAudio

Category:The 2A3 Tube Amplifier - A Tribute to Simplicity and Warm Sound

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Parafeed tube amp

Bottlehead Paraglow Tube Amplifier - Enjoy the Music.com

WebThe kit for discussion today is a single ended triode parafeed transformer output monoblock amp called the Paraglow, by Electronic Tonalities of Poulsboro, Washington, www.bottlehead.com , e-mail [email protected]. owned by Doc … WebWhat is parafeed? A Single Ended amplifier is easy to build with an anode resistor, but this resistor has also... a resistance, which is always a heavy load for the AC signal. This …

Parafeed tube amp

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WebOct 13, 2024 · The Crack with no output transformaers and the Mainline with them and the a Mainline being a parafeed type of amp. The Tuba I mentioned in my review is a parafeed … http://tubelab.com/articles/ideas/single-ended-output-stages/

WebMar 4, 2024 · A matching output transformer (OPT) offers low distortion and high signal headroom, and supports high or low impedance headphones with dual outputs. Two … WebJan 5, 2009 · EF86 driver and EL84 output Parafeed Tube Amplifier. Uses a 230V primary, 9V secondary Talema 30VA mains toroidal transformer as the audio output transformer (OPT). For more details and a schematic, see the EF86 / EL84 Parafeed ampthread. DIY Tube Projects:: DIY Tube Amp Kits:: DIY Speaker Projects:: DIY Solid State Projects::

WebThe parafeed (parallel feed) design solves the problem of DC current in the output transformer but has its own issues. Now there are two large inductances (in parallel, … WebJun 27, 2014 · It took about 5-6 weeks to get it. Looks like a good time to thank the Torpedo team for specifying a now easy to get parafeed transformer. Since tinkering is a never …

WebOct 31, 2013 · The Marantz 4100 is equipped with Tuner and MM phono inputs, Aux/CD-4 input plus two 2 of 4 channel tape monitors. Two channel sources can be decoded into 4 …

WebElectronluv was founded in 2002 with the goal of. creating ampifiers that look as distinctive as they sound. Each piece is extraordinarily conceived and crafted with attention to visual detail and to warm, accurate, distortion-free, vibrant hi-fi sound. Electronluv indviually manufactures each component into a rich, full custom stereo system. pahla b walk off the weight with musicWebMay 8, 2024 · Another good point to find out, choke quality vs inductance value in the case of parafeed. Easily the best HD800 amp I've heard, I'm loading the tube a bit much with 300ohm HPs, this causes a slight 2-3dB of boost at 20Hz because of the inherent tuned circuit of parafeed. pahla b weight loss day 12http://diy.ecpaudio.com/p/parafeed-tutorial.html pahla b weight loss day 16WebDesigning a Parafeed Headphone Amplifier Part 1: How a tube works A tube has 3 electrodes (hence triode, pentodes are for another day) – the anode, also called the plate, the cathode, and the grid, also called the control grid. When there is a positive voltage applied to the anode, current flows from the cathode to the anode (Why? pahla b weight loss day 19http://www.electronluv.com/ pahla b weight loss day 26WebMar 13, 2024 · About the Choice of the GM70 tube. The GM70 tube is a transmitter tube by the datasheet. However, similar transmitter tubes like 211 and 845, are recommended by RCA and GE for Audio purposes officially in their datasheets. This can be done with the GM70 also, and result is actually a lot better as with 211 or 845. pahla b weight loss day 3WebSep 21, 2024 · The Magnetics begin with the well-tried and quiet Hammond 373BX Classic Series power transformer, separate Hammond chokes for each side, separate filament … pahla b weight loss day 30