The present invention reduces hum noise in a non-feedback single-configuration power amplifier that uses a directly heated vacuum tube to ignite a filament with an AC power supply. A hum noise reduction apparatus according to the present invention has a filament voltage signal input section, a ...
描述: Interior electrical transformer hum and vacuum tube crackle for the Peavey 6505+ guitar amplifier. Contains power and standby switches both on and off as well as a little bit of crackle from the tubes as the amp cools down. Recorded in studio with Rode NTG4+ into AVID MboxPro and ...
The hum problem turned out to be a ground loop caused by the use of unbalanced jack cables between the Mackie mixer and the power amplifier. In fact all the system connections were made using unbalanced cables, so we suggested replacing these with balanced cables. The Vestax manual didn't sa...
KEPIOG Soldering Iron Kit, High Power 100W Soldering Iron Fast Heating, Circuit Board Soldering Repair Tools with Magnifying Glass Soldering Helper, 12 in 1 Adjustable Digital Soldering Kit. keep-improving $24.99 The Tube Amplifier Schematic Bible Volume 1: Library of Vintage Tube Amps (A-F)...
A talkbox feeds a synth signal (usually a sawtooth wave) through an amplifier and compresses the actual physical sound through a tube, which is inserted in the player’s mouth. The synth sound is actually transferred into the mouth and then shaped by the player and recorded by a microphone...
PROBLEM TO BE SOLVED: To suppress the reduction in the gain through the use of a hum balancer in an amplifier with a direct heated cathode by a direct curr... K Suezo 被引量: 0发表: 1997年 HEATER GROUNDING CIRCUIT FOR DIRECT HEATED VACUUM TUBE EMPLOYING DIODES PROBLEM TO BE SOLVED: To...
2. Means for neutralizing the effect of supply voltage variations in the output signal of a vacuum tube amplifier stage having anode, cathode and grid electrodes comprising: means for detecting supply voltage variations and for providing a correction signal related thereto, said variations having a...
In Fig. 1 the audio frequency source I transmits signal through transformer 2, through the push-pull amplifier stage 3, 4, of the electron tube type, through the additional amplifier stages 5, through the output transformer 6 to the anode current supply conductor 7 of the carrier wave power...
To reduce the hum noise of a non-feedback single configuration power amplifier that uses a direct heat vacuum tube to ignite a filament with an AC power supply.SOLUTION: A hum noise reduction device according to the present invention includes a filament voltage signal input unit, a hum noise...
appropriate capacitors 36 and 37, which, as indicated, may have a value of 1.01f. The first tube 38 of the amplifier is shown, and this is provided with the usual bias resistor 39 in the cathode circuit which is bypassed by an appropriate capacitor 40, the grid being connected to the ...