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davidriddle

 Maintained by:
 EMMY AWARD WINNING DAVID RIDDLE IS THE MOST KNOWLEDGEABLE SOURCE SPECIALIZING IN PROFESSIONAL VIDEO, AUDIO, PHOTOGRAPHY, SCIENTIFIC, ELECTRONIC TEST AND MEASURE EQUIPMENT. MR. RIDDLE HAS 40 YEARS OF EXPERIENCE AND IS AVAILABLE M-F FOR FREE CONSULTATION,FREE EXPERT ADVICE,AND FREE TECHNICAL SUPPORT.

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259 results found in all categories
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INFINITE ENVIRONMENTS WORLD'S FIRST FULLY ENGINEERED AUDIO REPRODUCTION BUILDING
 
Buy It Now or Best Offer$99,000.00Time left:28d 19h 20m
INFINITE ENVIRONMENTS FULLY ENGINEERED ULTIMATE AUDIO VIDEO THEATER BUILDING
 
Buy It Now or Best Offer$99,000.00Time left:28d 19h 24m
"WORLD'S MOST KICK-ASS HOME THEATRE" AUDIO VIDEO GAME MUSIC SOUND 3D EXPERIENCE
 
Buy It Now or Best Offer$99,000.00Time left:28d 19h 41m
30-HP 3-PHASE AC ELECTRIC MOTOR TEST STAND 10KW VARIABLE VOLTAGE DC POWER SUPPLY
 
Buy It Now or Best Offer$15,289.00Time left:28d 19h 44m
AUDIO RECORDING STUDIO 16 ZONE 19,000 WATTS VARIAC NO NOISE WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$9,889.00Time left:28d 19h 39m
BEHLMAN BL10000C-1-L-R 10KW VARIABLE FREQUENCY 50 400 HZ 3 PHASE AC POWER SUPPLY
 
Buy It Now or Best Offer$8,989.00Time left:15h 53m
BEHLMAN BL10000C-1-L VARIABLE FREQUENCY 50 TO 400 HZ 3Ø 3 PHASE AC POWER SUPPLY
 
Buy It Now or Best Offer$8,989.00Time left:16h 30m
BEHLMAN 10,000 WATT 45-500HZ 3Ø 3 PHASE 120/208V VARIABLE AC POWER SUPPLY SOURCE
 
Buy It Now or Best Offer$8,989.00Time left:7d 19h 26m
BEHLMAN 50 400 HZ 3Ø 3 PHASE OUTPUT ADJUSTABLE FREQUENCY CHANGER AC POWER SOURCE
 
Buy It Now or Best Offer$8,989.00Time left:8d 19h 51m
AUDIO RECORDING STUDIO 12 ZONE 14,000 WATTS VARIAC NO NOISE WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$6,889.00Time left:28d 19h 29m
HEPA FILTERED PRESSURIZED AIR COOLED MISSION CRITICAL HACKINTOSH COMPUTER CASE
 
Buy It Now or Best Offer$3,989.00Time left:21d 15h 9m
ENVIRONMENTALLY PROTECTED MICRO FILTERED PRESSURIZED AIR SLIDE OUT COMPUTER CASE
 
Buy It Now or Best Offer$3,989.00Time left:21d 15h 9m
VARIAC WORLD MAINS 100-240 VOLT INPUT METERED ISOLATED REGULATED AC POWER SUPPLY
 
Buy It Now or Best Offer$2,789.00Time left:30d 15h 23m
WORLD MAINS 100-240 VOLT INPUT METERED ISOLATED VARIAC REGULATED AC POWER SUPPLY
 
Buy It Now or Best Offer$2,789.00Time left:30d 15h 23m
US BEHLMAN 150-C-SBD 1500W 400HZ VARIABLE DIGITAL METERED AC POWER SUPPLY SOURCE
 
Buy It Now or Best Offer$2,489.00Time left:28d 19h 19m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO 0-280V 25AMP 7KW DUAL METERED VARIAC
 
Buy It Now or Best Offer$2,489.00Time left:28d 19h 43m
ELGAR DIGITAL AC POWER SUPPLY VARIABLE SOURCE 0-260V 350-450HZ 1200VA AVIONICS
 
Buy It Now or Best Offer$2,389.00Time left:28d 19h 25m
US MADE ELGAR 1201EL-13 DIGITAL VARIABLE AC POWER SUPPLY SOURCE 0-260V 350-450HZ
 
Buy It Now or Best Offer$2,389.00Time left:28d 19h 45m
NEW PORTABLE 0-150V@12A VARIABLE DC POWER SUPPLY UTILITY CIRCUIT BREAKER TESTER
 
Buy It Now or Best Offer$2,289.00Time left:28d 19h 32m
NEW DIGITAL PROGRAMMABLE 130V 100A DC POLARITY REVERSING RELAY CONTACTOR SWITCH
 
Buy It Now or Best Offer$2,289.00Time left:28d 19h 45m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 25-AMP VARIAC
 
Buy it now$1,989.00Time left:2d 20h 52m
CUSTOM DUAL METERED ISOLATED VARIAC TUBE TRANSISTOR AUDIO POWER AMPLIFIER 2800W
 
Buy it now$1,989.00Time left:27d 21h 6m
GENERAL RADIO 1583 13.6KVA 3Ø AUTOMATIC LABORATORY POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$1,989.00Time left:28d 19h 45m
GENERAL RADIO GENRAD GR IET 1538-A STROBOTAC 150,000 RPM STROBE LIGHT TACHOMETER
 
Buy It Now or Best Offer$1,889.00Time left:28d 19h 53m
USA MADE NEW 7KW GENERAL RADIO 0-280V@0-25A CUSTOM RACKMOUNT DUAL METERED VARIAC
 
Buy It Now or Best Offer$1,889.00Time left:28d 19h 53m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 15-AMP VARIAC
 
Buy it now$1,789.00Time left:2d 20h 49m
NEW CUSTOM DUAL RANGE 120V 240V METERED ISOLATED VARIAC AC POWER SUPPLY SOURCE
 
Buy It Now or Best Offer$1,789.00Time left:28d 19h 13m
NEW CUSTOM MADE GENERAL RADIO CASED DUAL METERED 10-AMP BENCH VARIAC TUBE AUDIO
 
Buy it now$1,589.00Time left:2d 20h 49m
AUTOMATIC AC POWER LINE VOLTAGE REGULATOR CONDITIONER 4 MARINE BOAT YACHT SHORE
 
Buy It Now or Best Offer$1,545.00Time left:28d 19h 34m
AUTOMATIC 10KW AC POWER LINE VOLTAGE REGULATOR CONDITIONER 4 PORTABLE GENERATOR
 
Buy It Now or Best Offer$1,545.00Time left:28d 19h 44m
GENERAL RADIO 1592A 10KW 240 VOLT 1Ø AUTOMATIC AC POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$1,489.00Time left:28d 19h 40m
AIRCRAFT ALTERNATOR GENERATOR CHARGING SYSTEM AC DC VOLT AMP DIODE LOAD TESTER
 
Buy It Now or Best Offer$1,449.00Time left:26d 22h 21m
NEW CUSTOM MADE 0-140V@0-20A DUAL DIGITAL METERED CURRENT LIMITING BENCH VARIAC
 
Buy It Now or Best Offer$1,389.00Time left:9d 20h 9m
GR TECHNIPOWER 1582 9KW ANALOG DIGITAL AUDIO STUDIO HOME AC POWER LINE REGULATOR
 
Buy It Now or Best Offer$1,345.00Time left:28d 19h 33m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 10-AMP VARIAC
 
Buy it now$1,289.00Time left:2d 20h 49m
ANODIZING ELECTRO PLATING RECTIFIER CORROSION FREE PROTECTION PRESSURE AIR BOX
 
Buy It Now or Best Offer$1,289.00Time left:12d 21h 7m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 10-AMP VARIAC
 
Buy It Now or Best Offer$1,289.00Time left:28d 19h 14m
NEW CUSTOM MADE PORTABLE DUAL METERED VARIABLE AC TRANSFORMER GUITAR AMP VARIAC
 
Buy It Now or Best Offer$1,089.00Time left:6d 14h 47m
US MADE VIDEO AUDIO RECORDING STUDIO TRIPLE 1200WATT VARIAC WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$1,089.00Time left:28d 19h 28m
GENRAD 1581A 6KW ANALOG DIGITAL STUDIO AUTOMATIC AC POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$989.00Time left:28d 19h 32m
SUPERIOR ELECTRIC POWERSTAT 3PN246 246 VARIAC 0-280V @ 15A 4KW LIFETIME WARRANTY
 
Buy It Now or Best Offer$889.00Time left:10d 14h 38m
1200 WATT AUDIO POWER GUITAR AMPLIFIER TUBE DUMMY LOAD BANK 4 STEREO 8 16 OHM Ω
 
Buy It Now or Best Offer$889.00Time left:28d 19h 16m
NEW VIDEO AUDIO RECORDING STUDIO NOISE FREE 600 WATT VARIAC WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$889.00Time left:28d 19h 28m
NEW CUSTOM MADE DUAL METERED VARIABLE TRANSFORMER TUBE AUDIO GUITAR AMP VARIAC
 
Buy It Now or Best Offer$889.00Time left:30d 15h 23m
KENYON KS-4 GYRO STABILIZER INVERTER BATTERY CHARGER CASE BINOCULARS GUN CAMERA
 
Buy It Now or Best Offer$889.00Time left:30d 20h 1m
DIGITAL CINE LOCATION STUDIO STAGE LIGHT LIGHTING NO NOISE DIMMER VARIAC IN CASE
 
Buy it now$789.00Time left:8d 17h 51m
DIGITAL VIDEO LOCATION STUDIO GRIP 3K FRESNEL PAR LIGHT NOISE FREE DIMMER VARIAC
 
Buy It Now or Best Offer$789.00Time left:11d 13h 55m
NEW CUSTOM MADE TEKTRONIX STYLE 0-140V@ 0-10A DUAL DIGITAL METERED BENCH VARIAC
 
Buy it now$789.00Time left:26d 13h 48m
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