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Bass treble tone control circuit – Circuit Schematic
Bass treble tone control circuit
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Ultrasonic dog whistle circuit – Circuit Schematic
Ultrasonic dog whistle circuit
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Home theater surround speaker system circuit – Circuit Schematic
Home theater surround speaker system circuit
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pete cornish ld 1 buffer – Circuit Schematic
pete cornish ld 1 buffer
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catalinbread super charged overdrive – Circuit Schematic
catalinbread super charged overdrive
The Super Charged Overdrive has been part of the Catalinbread range now for a while - as you can see above it`s had three style make overs so far (the top image...
microphone beyerdynamic TG X 50 Mk II – Circuit Schematic
microphone beyerdynamic TG X 50 Mk II
The Mk II was a second-generation version of the TG X 50. Both were dynamic microphones intended for bass instruments and kick drums. The primary difference bet...
microphone Sennheiser MKH 415 T – Circuit Schematic
microphone Sennheiser MKH 415 T
The Sennheiser MKH 415 T is a medium shotgun microphone, powered by the 12VDC A-B standard (aka DIN 45 595, aka T  power). It was the forerunner to the popula...
microphone Oktava MK 319 – Circuit Schematic
microphone Oktava MK 319
The MK-319 is a fixed cardioid-pattern, large-diaphragm condenser microphone. The capsule assembly is the same as the MK-219; the primary differences between th...
microphone Oktava MK 219 – Circuit Schematic
microphone Oktava MK 219
The MK-219 is a popular large-diaphragm condenser, designed and produced in JSC Oktava`s factory in Tula, Russia. Since its release (in the West) in 1994, it ha...
microphone Neumann UM 57 – Circuit Schematic
microphone Neumann UM 57
The Neumann/Gefell UM 57 was a large-diaphragm tube condenser microphone manufactured by the Neumann company of Gefell, Germany, currently known as Microtech-Ge...
microphone Neumann U 87 – Circuit Schematic
microphone Neumann U 87
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microphone Neumann SM 69 fet – Circuit Schematic
microphone Neumann SM 69 fet
Both used a pair of capsules from Neumann`s K67 family, mounted one atop another, with the top capsule having the ability to be rotated 270 ° against the botto...
microphone Neumann KM 88 – Circuit Schematic
microphone Neumann KM 88
Both mics, along with the stereo mics SM2 and SM23, used the same basic capsule design ” which itself was very similar to the KM54 capsule. According to Klaus...
microphone Microtech Gefell UM 92.1 S – Circuit Schematic
microphone Microtech Gefell UM 92.1 S
The M7 capsule is a center-terminated, dual-diaphragm design, and supports three polar patterns. A switch on the power supply allows selection of Cardioid, Figu...
microphone GoldenAge TC 1 – Circuit Schematic
microphone GoldenAge TC 1
The mic`s capsule is believed to be a 32mm OD, 26mm diaphragm design with 3-micron membranes. It is most likely the standard Chinese-made 32mm K67 capsule found...
microphone CAD equitek E100 – Circuit Schematic
microphone CAD equitek E100
CAD`s original E100 microphone was an inexpensive (for its time) multi-purpose studio condenser microphone, with an electret capsule and a neutral sound profile...
theremin – Circuit Schematic
theremin
This was a quick experimental prototype I put together based on an elegantly simple design by Doug Forbes, which uses common vacuum tubes. (Since Mr. Forbes`s o...
vu meter with led – Circuit Schematic
vu meter with led
If you are making a stereo amplifier, or if you own one already, then do not hesitate to add this circuit. The entire circuit is wired around IC4017 whose clock...
Remote audio level indicator circuit – Circuit Schematic
Remote audio level indicator circuit
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Hearing aids circuit – Circuit Schematic
Hearing aids circuit
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