Determine Best Orientation Of Output Transformer to Power Transformer In Audio Amplifier

"Little Jewel" Stereo SE Amplifier Initial Layout

SE 807 "Little Jewel" Amplifier Square Wave Measurements

A Salute To The Venerable 807 Vacuum Tube

807 Single Ended Amplifier Project - The "Little Jewel" - Schematic

807 Single Ended Amplifier Project - Part 5 - Measurements

807 Single Ended Amplifier Project - Part 4 - With Music

807 Single Ended Audio Amplifier Project - Part 3

807 Single Ended Audio Amplifier Project - Part 2

807 Single Ended Audio Amplifier Project - Part 1

Homebrew Amateur Radio Transmitters

HP 536-A Frequency Meter & NanoVNA Measurements

Troubleshooting PC Boards With Heat & Cold

High Voltage Panel Meters Checkout

Preamp For Astatic D-104 Microphone For Vintage Radios

Triode Gain And Grid Structure

PJ MIAOLIA SA-1000 Vacuum Tube Preamp with GE JAN 5670 Tubes

Russian KT77, British EL34, German EL34, Russian KT66 Harmonic Profiles

British Sound EL34 vs American Sound KT88

PL-259 Connectors on RG-400 or RG-58 Coax Cable

Tickling The Dragon's Tail

McIntosh MC225 Quick Review

T/R (Transmit/Receive) Switch External Control Box For "SEND" Connections

Bird Power Analyst 4391 Quick Overview

Building A Demodulator To Monitor AM and SSB Transmissions

Grounded Grid, Class-C, Plate Modulated AM Transmitter Using Eimac 3-400Z High mu Triode

General Radio (Genrad) Model 1666 Precision DC Ohm Meter

Fender Blue Junior III "tinnitus" Issue

Stereo Williamson 7591 Amplifier Repair

Plate Modulating The Mighty 833A

Checking Modulation On An AM transmitter Using Two Different Speech Amplifier Drivers.

High Voltage Megger Used To Check Capacitors

Radio Transmitter High Voltage Transformer Repair/Replacement

Svetlana SV572-10 SET Amplifier Before Rebuild

Vacuum Tube Gain & Gm Calculations & Some Insight Into Transformer Inductance and Impedance

Heathkit WA-1 Audio Amplifier Performance Using 5V4, 5U4, Solid State & Mercury Vapour Rectifier

Revisiting the McIntosh MC40 Amplifier

Mercury Vapor Rectifiers and Hash

Cleaning RCA Connectors And Vacuum Tube Sockets

First Attempt at Hydrogen Line Detection at 21 CM

Moon Test

Moon Test 8-6-2022

A First Radio Telescope For The 1.42 GHz Range

Microwave Antennas & 21 cm Radio Telescope (1420 MHz)

1.42 GHz Hydrogen Line Resonate Frequency Radio Astronomy & The Search For ET

For My Marilu

AM (Amplitude Modulation) Radio Transmitters From The Ground Up

Checking Out Some Beautiful Eimac 304 TH Tubes

Williamson Stereo Amplifier Using 7591 and Stereo 300B Amplifier Compared

Emotiva BasX TA1 Receiver Power, THD & Frequency Response Quick Test

Antenna Tuner (Ultimate Transmatch) from ARRL 1970

Electret Microphone Elements for All Microphones Frames

Electret Microphone Gain Adjustment Made Simple

Astatic D-104 Rebuild & Update To Condenser Microphone

Collins 30S-1 S/N 206 and Henry 2K RF Amplifier Restore

Negative Modulation Peak Limiting For AM Transmitters With Modulation Monitor

Peak Reading Wattmeter for Audio and Radio Frequencies.

Trapezoid Pattern of Amplitude Modulation Peak Limiting of High Level Class-C RF Amplifier

700 Watt 810 Triode Vacuum Tube Audio Amplifier Completion & Testing

Second Thoughts On 810 Amplifier