The Basic Triode Gain Stage
#triode
#gain stage
#vacuum tube
#audio amplification
#voltage amplifier
#electron tube
#analog circuit
#signal amplification
#low noise
#high impedance
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Groovewatt a DIY Vacuum Tube (Valve) RIAA Phono Preamplifier Project
This project has been in development for over a year, initially postponed due to concerns about design complexity and the availability of high-quality phono preamps. The objective was to create a preamp that would deliver performance comparable to commercial products...
Vacuum tube tesla coil (VTTC) using Russian GI-30
This setup is compact and operates offline directly from a 220V source, utilizing a voltage doubler to elevate the plate voltage to 560V DC. The circuit consists of a simple Armstrong oscillator, employing the feedback coil L4. The design aims...
Improved vacuum tube models for SPICE
The principal hobby interest is photography, and due to long working hours at Imatest, there is limited time to update the article or address complex inquiries. James E. Lanier's PSPICE Triode Calculator is an emerging tool for determining tube model...
Ultra low noise preamplifier
The SL561 utilized in this circuit functions as a high-gain, low-noise preamplifier intended for audio and video applications at frequencies reaching up to 6 MHz. Figure 2-6B illustrates the gain in relation to frequency for different capacitance values of C1,...
Analog circuit enforces slow servo response
The all-analog circuit presented controls the rate at which a miniature turbojet engine can be throttled. Increasing or decreasing the throttle too quickly on a miniature turbojet engine, or any jet engine, can lead to quick failure in flight, causing...
Vacuum Tube Preamplifier Analysis and SPICE Simulation
The concept of an AC model for the triode is presented, and the equivalent circuit technique is described. Theoretical calculations for amplifier gain and frequency response are derived and compared to simulation results in the SPICE3 environment, showing good agreement....
Vacuum Tube Direct Interface
DC power must be supplied to the instrument through either specialized cabling or an internal battery. This should not be applied to collectible instruments that do not include onboard electronics. It can be conveniently implemented using a field effect transistor...
LTSpice vacuum tube models
The objective is to establish a space dedicated to art, audio, and video, centered around a vintage electronics theme. The vacuum tube is considered the core component of any vintage radio or electronic device. Currently, the usage of vacuum tubes...
Vacuum tube tesla coil (VTTC) using Russian GU-81m
The coil has been enhanced with additional turns, necessitating an improvement in insulation. Epoxy was chosen as the insulating material, with an increased quantity applied over the soldered connections.
To ensure the reliability and performance of the coil, the additional turns...