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tube audio

  1. Screenshot 2025-10-18 at 18-57-31 The Titans of Tone A Comparative Guide to 211 845 813 and 81...png

    Screenshot 2025-10-18 at 18-57-31 The Titans of Tone A Comparative Guide to 211 845 813 and 81...png

    future project
    • sae-7125
    • Media item
    • 211 845 glassware high power quantum modulation tube audio
    • Comments: 0
    • Category: Tube Gallery
  2. mcaddie7

    Realistic Stereo 40/A Selenium Rectifier

    Hey all- starting a rebuild of a Realistic tube amp. There are a few tubes that need to be replaced, as well as the electrolytic capacitors. However, I noticed there appears to be a red selenium rectifier. I have limited knowledge on these, but I have read that aging rectifiers can become...
    • mcaddie7
    • Thread
    • realistic selenium rectifier tube audio tube receiver
    • Replies: 2
    • Forum: Tube Audio
  3. tutor_turtle

    SA-300 inrush limiter question

    I have a heavily modified SA-300 from a top notch tech in Canada (Sams Audio). The rework is some of the best I've seen. All caps, rectifiers, sockets.. the works all neatly laid out. There issue is the GZ34 rectifier tubes are intermittently sparking on startup. New tubes did not solve the...
    • tutor_turtle
    • Thread
    • fisher gz34 inrush current inrush limiter sa-300 thermistor tube audio
    • Replies: 6
    • Forum: Fisher
  4. F

    i need help , i have a no name strange tube amp

    I have this no name amp with the numbers 2222 on it , no other markings , possible tone cabinet or guitar amp . can anybody help . i would like to restore it and i need a schematic . the transformers were made in kitchener ontario by STANDARD RADIO PRODUCTS OF KITCHNER ONTARIO . never...
  5. PVhunter

    headphones and amp

    I have an Audiolab 8300A (solid-state) with no headphone connection. I want to connect a headphone amp, but I need help. I do not own phones yet, but I'm planning on spending a fair amount, 300 - 600$ a pair. 1. Do I only need an amp stage, I should not need a preamp, since there are two...
  6. StatguyKT88

    Beveridge 2SW-1 Amp /Tubed Balanced Input I/O Schematics

    This message is directed to anyone out there and in particular to dcgillespie if you can see this post that can answer a couple of question(s) I have which make reference to the attached schematic of the Beveridge 2SW-1 amplifier and the attached schematic of a proposed balanced I/O tube driver...
  7. StatguyKT88

    Beveridge 2SW-1 Amp Schematic

    I have a pair of Bev 2SW-1 amps and the associated 'stat speakers that go with them and would like to understand the operation of the circuit better than I currently do. The amps were designed by the late great Roger Modjeski. See below. For any of you out that are familiar with this novel...
  8. Ibemiked

    Curtis Mathes The Royal Dane!

    I’ve had this beautiful 72” wide Curtis Mathes The Royal Dane console for a awhile now but just got around to cleaning it up and plugging a CD player into the AUX. The sound is excellent and it’s one of the best looking consoles there is! I believe it’s a 1964 model. The cosmetic condition is...
    • Ibemiked
    • Thread
    • console stereo console tube curtis mathes curtis mathes the royal dane tube amp tube audio
    • Replies: 6
    • Forum: Tube Audio
  9. McinBozak

    Unusual Console stereo's. Feeling blessed. Have you ever seen one of these?

    I felt really blessed to find three Ampex consoles each falling within a year of one another. But the latest find is so unusual and was sold as restored. Clearly it was not. Output tubes going into saturation I paid waaay too much for it but the cabinet is really beautiful unusual styling from...
  10. P

    Chinese amps?

    Hi, I like to try the Chinese amp,each one ishould go for? .Ilost all my storage staff it's along list,idont even want to talk about it. Was a completely lost. But iam trying to open a court case. So I have a Polk audio monitor SDA.start from scratch.and now with los budge. Chinese...
  11. M

    want to know what this is

    I have this tube amp? but there is no power switch and I just want to know what exactly it is so I can see if Id have a use for it. To me it looks like an amp with right and left inputs in front and speaker inputs in the back. But im new to tube amps/tube anything. Just want more...
  12. I

    New guy

    Hi from West Michigan IF-10.7
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