Tube Radio Circuit Diagram. Easy… email us 4 things.make, chassis and/or model number, approximate year and country where your old tube radio was made. To help you understand the circuit diagram, the table on page 28 gives a description of each of the circuit components.
Schematic diagram from antiqradio.com
The circuit might appear complicated on the first look, but if we compare it with the block diagram that we learned earlier, it becomes simple. We specialize in schematic diagrams and electronic circuit service information for old vintage tube radios. The antenna is inductively coupled to the input of the first rf amplifier.
They Don't Have The Pcf801 Or 6Jc8 In Stock, But I Think.
The original circuit which uses a pcf801 is based off another circuit which used a 3a5 tube. Refer to the schematic in figure 1. The 100 kω resistor ensures that the average dc voltage between grid and cathode is zero, and cannot “float” to.
I Purchased My Tube From Pacifictv For $3.
There is an rf amplifier (1t4 tube), a regenerative detector stage (1t4 tube), an audio amplifier, (1s5 tube) and an audio output stage (3s4 tube). Schematic for the retro regen radio. Nearly the current draw of a flashlight bulb.
The Set Runs On A Single D Cell With A Current Draw Of 250Ma.
Schematic downloads (pre 1970s) are available for radios, tape recorders, record players, pa amplifiers, and more from many service sources. Easy… email us 4 things.make, chassis and/or model number, approximate year and country where your old tube radio was made. We carry schematics for american made philco, rca victor, zenith, westinghouse, motorola, admiral, emerson, general electric / ge, sparton,.
1200 Ohms, 2 Watts 22 Ohms
These are offered for the furtherance of the readers’ knowledge regarding radio frequency design and principles. The antenna is inductively coupled to the input of the first rf amplifier. Close radios logbook ota tv log info links bibliotaphe schematics laboratory blog.
The Audio Output Stage Runs On 90 Volts.
There are three rf amplifier stages, followed by a detector. The big bonus of this circuit is that the grounded screen grid shields the plate output circuit from the oscillator circuit, providing very good isolation between the two, especially when a well screened tube such as the 6cl6 is used. For the other configuration, the circuit common and chassis a re at ac line potential, 117vac.
