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  1. PabloL

    6V6 Marblewood after a 16y break

    What? My last post was 16 years, 1 masters degree and 2 kids ago?!? Well, I made the mistake of picking up a soldering iron, smelled the fumes, and now I have some Edcor transformers and a giant box of parts on the way to my home. I looked at a couple of PP schematics and of course couldn't find...
    • PabloL
    • Thread
    • 6v6 marblewood se seul
    • Replies: 17
    • Forum: Tube Audio
  2. happybear

    Manifesto SE ... a single ended tube amplifier project

    Manifesto SE ... a single ended tube amplifier project by HB. The physical layout is breadboard-minded, with exposed signal circuits connected to the power supply via umbilical connectors. The power supply is a LOW DCR "flywheel" type with 250VA Hammond ICT as the main B+ transformer. The...
    • happybear
    • Thread
    • 6aq5 6v6 7c5 low dcr se tube amplifier
    • Replies: 51
    • Forum: Tube Audio
  3. S

    What were the engineers trying to accomplish in this circuit?

    Greetings, I've recently serviced a Sylvania console chassis for educational purposes as I've not wrenched on a stereo single ended amplifier like this one before. (And I cannot say no to adopting an ugly amp that is getting no love.) With no markings, I had to draw out a schematic to make...
    • Sam Lysinger
    • Thread
    • console amp console pull se single ended sylvania
    • Replies: 17
    • Forum: Tube Audio
  4. happybear

    Penncrest SE 50C5 tube console amplifier

    Penncrest AM/FM Phono console. The chassis was stripped and rebuilt as a SE tube stereo amplifier. SE 50C5 beam power mode finals driven by a cap coupled 5751 twin triode. SS diode rectified SS voltage doubler power supply with filter choke. Tuned the loop FBK network to improve square wave...
    • happybear
    • Thread
    • 50c5 5751 penncrest se single-ended
    • Replies: 11
    • Forum: Tube Audio
  5. happybear

    SE Tube Amplifier : Project Preview ...

    This SE tube amplifier project is currently a work-in-process. The PT came from a Westinghouse phono console that supported (2) 6V6, a few 12AX7's and a 5Y3 rectifier. On order are (2) NOS AES PT-31 SE 5K/8 OPT's. No final decision has been made regarding the signal circuit on this project...
    • happybear
    • Thread
    • aes pt-31 dg se1 magnavox se tube amplifier
    • Replies: 17
    • Forum: Tube Audio
  6. happybear

    SE 6AQ5 with AES PT-31 OPT

    SE 6AQ5 with AES PT-31 OPT. The OPT's are older units, not the current production. 5751 driving stage. There were some issues regarding load dependent stability while figuring out the feedback circuit. Grid stop resistors and Zobel network across OPT resolved the stability problems. RT...
  7. Tubeglowpio

    Kegger/blueglow kt88 project

    Happy new year everyone! I've been really busy but have wanted to build the Kegger se kt88 for awhile now and after seeing blueglows youtube videos I'm sold. I enjoy my 5 watt se builds but have a party coming up this spring and need more power so am ready to get started but have a few...
    • Tubeglowpio
    • Thread
    • amp blueglow kegger kt88 se single ended stereo tube
    • Replies: 1,843
    • Forum: Tube Audio
  8. 300B 10Y SE amp with 83 rectifier tube

    300B 10Y SE amp with 83 rectifier tube

    300B 10Y SE amp with 83 rectifier tube
    • radiostar
    • Media item
    • 10y 300b 83 amp rectifier se tube with
    • Comments: 0
    • Category: DIY
  9. JE Labs/ Angela Instruments SE 2A3 stereo amp

    JE Labs/ Angela Instruments SE 2A3 stereo amp

    My first DIY! Made over the course of several months, with lots of advice and counsel from good AK folks. Highlights are Riken resistors and James Audio transformers. Member ejfud made the base for me of curly maple and curly cherry. http://www.audiokarma.org/forums/showthread.php?t=118799...
    • Redboy
    • Media item
    • 2a3 angela audio james je labs se
    • Comments: 3
    • Category: DIY
  10. JE Labs/ Angela Instruments SE 2A3 stereo amp under

    JE Labs/ Angela Instruments SE 2A3 stereo amp under

    Here's my amp underdecks. Highlights are Riken resistors and James Audio transformers.
    • Redboy
    • Media item
    • 2a3 angela audio james je labs se
    • Comments: 4
    • Category: DIY
  11. SE 6BQ5 Olson console amp

    SE 6BQ5 Olson console amp

    I pulled this out of an Olson console. Added a power switch, fuse assembly, volume pot, jewel light, and new power cord. EZ81 rectifier, 12AX7 driver, and EL84/6BQ5 power tubes. Pretty amazing sound from an amp smaller than a shoebox!
    • Redboy
    • Media item
    • 6bq5 amp console olson se
    • Comments: 0
    • Category: Member's Tube Gear
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