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The Tube CAD Journal: Vacuum tube mixers

    https://www.tubecad.com/april_may2001/page22.html
    The Tube CAD Journal: Vacuum tube mixers The simplest tube mixer is made up of several series input resistors feeding one common grid. The resistors further the isolation between inputs, i.e. serve to limit the back-feeding of input signals. The input signals are summed at the grid and amplifier at the plate.

Multi-use vacuum-tube audio mixer circa 1960 ...

    https://www.preservationsound.com/2011/08/multi-use-vacuum-tube-audio-mixer-circa-1960/
    Multi-use vacuum-tube audio mixer circa 1960. Download a three-page article from Electronics World “Hi Fi Annual & Audio Handbook 1960” which details the construction of a 4-channel tube mixer: “Electronics World” Magazine published these ‘hi-fi annuals’ in the late 50s/early 60s; from what i can gather, they seem to be collections ...

Custom Tube Consoles - Design Philosophy

    https://www.customtubeconsoles.com/vacuum-tube-mixers
    A typical CTC channel consists of an input pad, a transformer (which provides 20dB gain), a 25dB gain stage, and a variable pad followed by another 25dB gain stage as shown in the figure below. With the pads switched out the channel has a gain of 70dB.

Tradett Faq: How Does a Mixer Vacuum Tube Work?

    https://tradettfaq.blogspot.com/2012/04/how-does-mixer-vacuum-tube-work.html
    A vacuum tube is an active electronic device that uses electromagnetic energy to alter an AC input signal. Before 1947, vacuum tubes were commonly used in amplifiers and rectifier circuits. When voltage is applied to a vacuum tube's terminals, electrons begin to flow from the vacuum tube's cathode to the plate terminal.

Custom Tube Consoles

    https://www.customtubeconsoles.com/
    A minimum cost fully functioning tube mixer (also suitable for DIY builds). This is based on a standard mechanical frame work and open sourced PCBs The Compact Recording Console. A mid range all tube console with up to 6 channels all with mic/line inputs, three band EQ, direct outs, inserts and a basic monitor section

Vacuum tube, Electron tube, Valve

    https://dbtubes.com/en/
    Audio Tubes for all your high-end audio, pre-amp, mixer, filter and power amp requirements. Power Range of power tubes for transmitter and receiver operation of radio amateur, consumer, and commercial radio and TV equipment. Vintage Hard to find glass tubes and valves, globe type, shoulder type, metallised finish, from the dawn of radio.

Using a Beam Deflection Tube as a Mixer for an RTL-SDR ...

    https://www.rtl-sdr.com/using-a-beam-deflection-tube-as-a-mixer-for-an-rtl-sdr-upconverter/
    A beam deflection tube is a type of vacuum tube that can be used as a mixer. If you aren’t aware, a vacuum tube (a.k.a tube or valve) is an electrical component that was used in electrical equipment heavily back in the first half of the 1900’s. They could be used to implement circuits like amplifiers, mixers, switches, oscillators and more.

tube mixer products for sale | eBay

    https://www.ebay.com/b/tube-mixer/bn_7024735838
    MAGNECORDER PT63P Tube PREAMPLIFIER MICROPHONE MIXER VINTAGE Magnecord. $299.99. 0 bids. $42.91 shipping. Ending Aug 19 at 12:35PM PDT. 5d 19h.

DIY Vacuum Tube (Valve) Amplifier Projects - Hi-Fi Audio

    https://diyaudioprojects.com/Tubes/tubes.htm
    The headphone amplifier is similar to the previous version in that a single 12AU7 (ECC82) vacuum tube is used for voltage gain and an IRF510 MOSFET follower stage is used to provide current to drive demanding headphones. The hybrid tube and MOSFET amplifier operates off a 12V SLA battery so there are no high voltage concerns.

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