Pushpull Amp


Rating: 0.00 / 5 
Vacuum-Tube Valves Circuits / Audio Circuits
With all DHT stages (all tubes from Svetlana 1970-s). OK, the input/splitter are not DHT`s but DHP`s - 4P1L - triode wired. Mullard 3-tube input/splitter topology, cap-coupled to cathode bias 6B4G PP. First stage uses battery bias (no cathode resistor). Only paper capacitors everywhere. Gas regulators for the first stage.
Pushpull Amp - schematic

Later, I replaced Mullard splitter with IT splitter in a Loftin White arrangement. It has gain about 90 at the second stage plate. Next steps: rewire IT to a step-down ration (right now it`s a stock 1+1:1.25+1.25) and replace first stage load for a G

Recommended videos

  • Vacuum Tube Amplifier James Audio Output Transformer
  • 60 watt vacuum tube push pull amp
    Duration: 3:18.
  • DIY Push-Pull EL84 Vacuum Tube Audio amp
    Duration: 4:42.


  • TheChronicleHerald.ca
    TheChronicleHerald.ca During my loan, I fell deeply in love with a feature that adds thrill but has nothing to do with engine power, transmission, exhaust notes, shift points or suspension: the Fender Premium System. For anyone enamoured of
     16 June 2016
  • Tri-City Herald
    Tri-City Herald LIGO Hanford has two that extend for 2.5 miles across the Hanford shrub steppe at right angles. At the end of each, a mirror is suspended on fine wires. A high-power laser beam is split to go down each tube, bouncing off the
     15 June 2016
  • What Hi-Fi?
    What Hi-Fi? Research introduces its "more affordable" Foundation hi-fi seriesAt the heart of the LS28 preamp are four 6H30 in the analogue circuit. It will work with just about any amplifier, although naturally Research would prefer it
     13 June 2016
  • WA-2A Tube Opto Compressor
    Virtual-Strategy Magazine
    - WA-2A Tube Opto CompressorIt also features custom, large-core Cinemag input and output transformers, four premium , and the legendary Kenetek opto-cell, considered by many to be the world's finest. No plug-in or other compressor type quit
     8 June 2016
  • Pulitzer Center on Crisis Reporting
    Pulitzer Center on Crisis Reporting He mostly stays in here, smoking cigarettes and building equipment from old Soviet . His left arm is a patchwork of blue veins. Sometimes he writes songs, like one he wrote after moving here, the new home
     3 June 2016
  • Stereophile Magazine
    Stereophile Magazine Tavish's two least-expensive phono stages combine and JFETs; their integrated amplifier, the Minotaur, is also a hyid (geddit?). But only tubes are used in the circuitry of their top-of-the-line phono preamplifier, the
     1 June 2016
  • Digital Trends
    Digital Trends Check out the Kenzie headphone amp from Amps and Sound. Yes, those are , and yes, this thing sounds as amazing as it looks. There's no digital-to-analog conversion here, no zeros and ... sound, you know that's pretty cheap comp
     26 May 2016
  • YouTube
    YouTube Vacuum Tube AmplifierThe handrubbed and waxed walnut and cherry wood enclosures are reminscent of equipment built 50 years ago by craftsman. The retro feel of the exposed tubes distinguishing a tube amplifier from any other type
     22 November 2012
  • The Verge
    The Verge in new docks and HTIB systemsIt looks like Samsung might be trying to spread things out a bit before the torrent of releases at CES 2012 next week. Today the company has announced two new docks and three home theater in-a-box
     4 January 2012


Leave Comment

characters left: