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1959

  1. P

    BK Partners A205 amplifier and P205 control unit (1959)

    Hi everyone! I’ve got a rare B.K. Partners A205 amplifier and P205 control unit (circa 1959). The preamp (S/N 237) features an interesting tube lineup: three EF86s and one ECC83, including Phono stage, Tone, Presence, and Rumble controls. I'm currently restoring it and looking for a schematic or...
    • Parider
    • Thread
    • 1959 a205 b.k. ef86 p205 tube preamp
    • Replies: 0
    • Forum: Tube Audio
  2. sean sweeney

    Question on 1959 Crown SXA tube amp power supply, switching noise from half wave rectifiers?? 120hz hum.

    So I got this amp in a trade deal a few weeks ago, and after one issue of basically building it back from scratch, from a blurry schematic from 1960, I still am getting some 120hz hum when the unit is idling, with the inputs shorted. I just replaced the selenium rectifier, and that seemed to...
    • sean sweeney
    • Thread
    • 1959 amp amplifier control crown gcr monitor studio sxa tube
    • Replies: 175
    • Forum: Tube Audio
  3. zastin17

    Dynaco ST-70, 1959, Freshly Drawn Hafler Schematic :)

    https://www.dropbox.com/s/k8bo95iab6bc9vu/Schematic_Dynaco St70 Final_2021-09-28.pdf?dl=0 I like to make older Schematic nice a "pretty" for my own archiving, but I rather share it, as maybe its still helpful today High quality PDF available above. Prints out very nice! This does not take me...
    • zastin17
    • Thread
    • 1959 amp dynaco halfer schematic st-70 tube
    • Replies: 4
    • Forum: Tube Audio
  4. turnitup

    What have we here???

    I picked this up at an estate same a few years ago, drawn to it due the quality of the build. I think it’s from a 1959 turntable. It’s obviously of German build. The housing is very heavy, and acts like a flywheel when spun (the entire top spins along with the brass wheel). Anyone know what...
  5. T

    1959 Zenith Question- Capacitor?

    Howdy Folks! I joined this forum because I stumbled upon a 1959 Zenith Rigoletto SFD 2575 L at a local shop, and now it lives with me. Hoping some gurus here might have a pro tip or two on an issue it has. I love this thing, and want to keep it forever!!! Turntable works, stereo works. But...
    • TedB
    • Thread
    • 1959 2575 buzz capacitor hum rigoletto zenith
    • Replies: 6
    • Forum: Tube Audio
  6. Motorola 21", 1959

    Motorola 21", 1959

    From the estate of an old TV repairman, required only minor repairs. Connected to an older Mallory UHF converter.
    • bgadow
    • Media item
    • 1959 21" motorola
    • Comments: 1
    • Category: Horizontal Hold
  7. 1959 RCA 14PT9012

    1959 RCA 14PT9012

    • Charlie
    • Media item
    • & 14" 1959 black rca white
    • Comments: 0
    • Category: Member Galleries
  8. 1959 Sylvania Dualette

    1959 Sylvania Dualette

    • Charlie
    • Media item
    • 1959 dualette sylvania
    • Comments: 0
    • Category: Horizontal Hold
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