MAGNETIC PHONO PRE-AMP






POWER SUPPLY WIRING
RED TRANSFORMER WIRES CONNECT TO 800 VOLT RECTIFIER
THE HIGH VOLTAGE CENTER TAP (RED/YELLOW) WIRE IS NOT USED AND SOLDERED TO A FREE TERMINAL
THE 10MFD 450VOLT CAPACITOR IS SOLDERED AT THE 800 VOLT RECTIFER
GREEN TRANSFORMER WIRES CONNECT TO 100 VOLT RECTIFIER
THE 10,000MFD 16 VOLT C3 CAPACITOR IS SOLDERED AT THE 100 VOLT RECTIFIER
The rectifier leads are soldered into the rivet holes of the terminal strip
the 1M resistor is a bleeder resistor used to bleed off charged capacitors when the unit is off








THE 10,000MFD 16V C4 FLIAMENT CAP IS LOCATED AT THE TOP LEFT
THE 47MFD 400V HIGH VOLTAGE FILTER CAP IS LOCATED AT THE TOP RIGHT
The B+ (high voltage) red wire has thicker insulation rated at 600V







BACK TO MAGNETIC PHONO PRE-AMP MAIN PAGE


DISCLAIMER










SITE DIRECTORY
MAIN PAGE
PROJECTS
vacuum tube related

TONE CONTROLS
MAGNETIC PHONO PRE-AMPLIFIER
AUDIO CONTROL CENTER
LEVELING AMPLIFIER
CLASSIC BASS REFLEX SPEAKER
PROJECTS
solid state related

TRANSISTOR AMPLIFIER STAGE
TRANSISTOR AMPLIFIER 2-STAGE
TRANSISTOR 10 WATT AMPLIFIER

INFORMATION
vacuum tube related

BASIC ELECTRONICS
BUILDER TIPS
THE VACUUM TUBE
THE TRIODE AMPLIFIER
VACUUM TUBE POWER SUPPLY
USING A SOILD STATE SUPPLY
SELECT A POWER TRANSFORMER
FILAMENT DC SUPPLY
CALCULATE FUSE SIZE
TUBE DATA
SELECTING WIRE SIZE
INFORMATION
general

LETTERING A PANEL
GROUND LOOPS
BALANCED AUDIO LINES







RADIO RELATED

WBBM
Chicago, Illinois
WEZW
Milwaukee, Wisconsin
WFUN
Miami, Florida
WROK-AM, WZOK-FM
Rockford, Illinois
MISC

EXPERIMENT THAT SAVED HI-FI
RUSSELL O HAMM PAPER
ANALOG~DIGITAL AUDIO
EAR DAMAGE - LOUD AUDIO
SOUND ON FILM
REBUILDING A HOLMES 35MM PROJECTOR
SAENGER THEATER, MOBILE, ALABAMA




MAGNETIC PHONO PRE-AMPLIFIER - MAGNETIC TURNTABLE PRE-AMPLIFIER - TURNTABLE PRE-AMPLIFIER
MAGNETIC PHONO PRE-AMPLIFIER - MAGNETIC TURNTABLE PRE-AMPLIFIER - TURNTABLE PRE-AMPLIFIER