3 Tube 2 Watt Economy AC/DC Amplifier
Revealed by: Madison
On: 30 Okt, 2018
Viewed:12 times - 3 day, 1 hour, 1 minute, 33 second ago
Downloaded: 0 times -
Rated 3.7 / 5 based on 129 reviews
The feature of this AC/DC amplifier is its low cost due to the small number of parts used. It is quite suitable for phonograph reproduction with good gain capabilities from a less sensitive pickup. With the arrangement shown for biasing the two am...
The feature of this AC/DC amplifier is its low cost due to the small number of parts used. It is quite suitable for phonograph reproduction with good gain capabilities from a less sensitive pickup. With the arrangement shown for biasing the two amplifier tubes, it is possible to ground the cathodes of the tubes directly, eliminating the need of cathode resistors and condensers.
The Bias Cell provides essensial grid bias voltage to the L2SF5 tube when connected in the proper manner-shell of bias cell to grid terminal. Bias for the 50L6GT tube is obtined from the divider network R-4 and R-5, connected across the speaker field. This method of biasing provides a slightly higher plate vo;tage to be effective on the power tube, consequently increasing its power output.
It should be noted that the two filter condensers do not have their negative leads connected to the same point, so if it is intended to use a dual filter unit in the construction of this amplifier, one should not be obtined with a common negative lead.
C-1 20 mfd 150 V. elec. cond.
C-2 .01 mfd 400 V. paper cond.
C-3 .01 mfd 600 V. paper cond.
C-4 .02 mfd 400 V. paper cond.
C-5 20 mfd 150 V. elec. cond.
R-1 1 meg ohm volume control
R-2 250,000 ohm 1/2 watt res.
R-3 250,000 ohm 1/2 watt res.
R-4 35,000 ohm 1/2 watt res.
R-5 100,000 ohm 1/2 watt res.
J Phonograph jack
B Bias cell 1 1/2 volt
L 450 ohm speaker field
T Output trans:2000 ohm to V.C
SW SPST switch on volume control
Sockets: 3 octals
C-6 .1 mfd 200 V. paper cond.
Download Circuit and Wiring Diagram: 3 Tube 3 Watt Direct coupled amplifier...
Download Circuit and Wiring Diagram: 2 Tube contact microphone amplifier...
Download Circuit and Wiring Diagram: 2 Tube 1 1/2 watt AC/DC Amplifier...
Download Circuit and Wiring Diagram: 1 Tube 1 Watt AC/DC Amplifier...
Download Circuit and Wiring Diagram: Inverterless one tube (6M11) push pull audio amplifier...
Download Circuit and Wiring Diagram: Basic Helix Traveling Wave Tube...
As the fastest growing demand of circuit and wiring diagram for automotive and electronics on internet based on different uses such as electronic hobbyists, students, technicians and engineers than we decided to provide free circuit and wiring diagram base on your needed.
To find circuit and wiring diagram now a day its easy. E-learning through internet as a right place to search an exact circuit and wiring diagram of your choice and it's much fun and knowledgable. On internet you will find thousands of electronic circuit diagrams some are very good designed and some are not. So you have to modify them to make them according to your needs but some circuits are ready to make and require no changes.
There are many categories of circuit and wiring diagrams like automotive, audio circuits, radio & RF circuits, power supply circuits, light circuits, telephone circuits, timer circuits, battery charger circuits etc. There are many types of circuit and wiring diagrams some are very easy to build and some are very complicated, some are so small and some contain huge list of parts.
We provides free best quality and good designed schematic diagrams our diagrams are free to use for all electronic hobbyists, students, technicians and engineers. We also provides a full educational system to students new to electronics. If you are new to electronics you are a student or a electronic hobbyist and want to increase your knowledge in electronics or want to understand electronics in a very easy way so this is the right place for you we provide electronics beginner guide tutorials to easily understand complicated electronic theory. Our mission is to help students and professionals in their field.