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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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136 results found in Variacs
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AUDIO RECORDING STUDIO 16 ZONE 19,000 WATTS VARIAC NO NOISE WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$9,889.00Time left:11d 22h 30m
AUDIO RECORDING STUDIO 12 ZONE 14,000 WATTS VARIAC NO NOISE WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$6,889.00Time left:11d 22h 19m
USA SUPERIOR ELECTRIC EMT10153 135KVA 208V 230V 3Ø VARIAC LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$5,989.00Time left:11d 22h 43m
WORLD MAINS 100-240 VOLT INPUT METERED ISOLATED VARIAC REGULATED AC POWER SUPPLY
 
Buy It Now or Best Offer$2,789.00Time left:14d 18h 13m
WORLD MAINS 100-240 VOLT INPUT METERED ISOLATED VARIAC REGULATED AC POWER SUPPLY
 
Buy It Now or Best Offer$2,789.00Time left:14d 18h 13m
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:11d 22h 34m
GENERAL RADIO 1583 13.6KVA 3Ø AUTOMATIC LABORATORY POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$1,989.00Time left:11d 22h 35m
SUPERIOR ELECTRIC IES 25007 9KW 120V 400HZ POWER LINE VOLTAGE REGULATOR AVIATION
 
Buy It Now or Best Offer$1,989.00Time left:11d 22h 40m
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:11d 22h 43m
NEW CUSTOM DUAL RANGE 120V 240V METERED ISOLATED VARIAC AC POWER SUPPLY SOURCE
 
Buy It Now or Best Offer$1,789.00Time left:11d 22h 4m
GR TECHNIPOWER 1582 9KW ANALOG DIGITAL AUDIO STUDIO HOME AC POWER LINE REGULATOR
 
Buy It Now or Best Offer$1,545.00Time left:11d 22h 23m
AUTOMATIC AC POWER LINE VOLTAGE REGULATOR CONDITIONER 4 MARINE BOAT YACHT SHORE
 
Buy It Now or Best Offer$1,545.00Time left:11d 22h 24m
AUTOMATIC 10KW AC POWER LINE VOLTAGE REGULATOR CONDITIONER 4 PORTABLE GENERATOR
 
Buy It Now or Best Offer$1,545.00Time left:11d 22h 34m
GENERAL RADIO 1592A 10KW 240 VOLT 1Ø AUTOMATIC AC POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$1,489.00Time left:11d 22h 30m
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:11d 22h 5m
US MADE VIDEO AUDIO RECORDING STUDIO TRIPLE 1200WATT VARIAC WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$1,089.00Time left:11d 22h 18m
NEW CUSTOM MADE PORTABLE DUAL METERED VARIABLE AC TRANSFORMER GUITAR AMP VARIAC
 
Buy It Now or Best Offer$1,089.00Time left:20d 17h 38m
GENRAD 1581A 6KW ANALOG DIGITAL STUDIO AUTOMATIC AC POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$989.00Time left:11d 22h 23m
NEW VIDEO AUDIO RECORDING STUDIO NOISE FREE 600 WATT VARIAC WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$889.00Time left:11d 22h 18m
SUPERIOR ELECTRIC POWERSTAT 3PN246 246 VARIAC 0-280V @ 15A 4KW LIFETIME WARRANTY
 
Buy It Now or Best Offer$889.00Time left:18d 16h 5m
DIGITAL VIDEO LOCATION STUDIO GRIP 3K FRESNEL PAR LIGHT NOISE FREE DIMMER VARIAC
 
Buy It Now or Best Offer$789.00Time left:11d 22h 25m
USA MADE VIDEO AUDIO RECORDING STUDIO NO NOISE DUAL 1200W VARIAC LIGHTING DIMMER
 
Buy It Now or Best Offer$789.00Time left:11d 22h 26m
ADJUSTABLE AMPS VOLTS ISOLATED VARIABLE AC DC POWER LINE SUPPLY EQUIPMENT TESTER
 
Buy It Now or Best Offer$789.00Time left:11d 22h 42m
0-280V@ 0-10A DIGITAL METERED ISOLATED VARIAC AC POWER SUPPLY SOURCE TEST BENCH
 
Buy It Now or Best Offer$789.00Time left:11d 22h 42m
DIGITAL CINE LOCATION STUDIO STAGE LIGHT LIGHTING NO NOISE DIMMER VARIAC IN CASE
 
Buy it now$789.00Time left:23d 20h 41m
RARE HP HEWLETT PACKARD FACTORY TEST EQUIPMENT TOOL DUAL METERED VARIAC USA MADE
 
Buy It Now or Best Offer$689.00Time left:11d 22h 9m
RECORDING STUDIO NO NOISE FREE DUAL 300 WATT VARIAC IN WALL LIGHTING DIMMER LED
 
Buy It Now or Best Offer$689.00Time left:11d 22h 14m
USA AUDIO RECORDING STUDIO NO NOISE DUAL 300 WATT VARIAC IN WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$689.00Time left:11d 22h 14m
NEW WESTERN ELECTRIC VARIAC FOR VINTAGE 300B 2A3 TUBE AUDIO AMPLIFIER RACKMOUNT
 
Buy It Now or Best Offer$689.00Time left:11d 22h 18m
NIB NEW GENERAL RADIO TECHNIPOWER GENRAD W20 VARIAC 0-140V @ 20A KNOB DIAL PLATE
 
Buy It Now or Best Offer$689.00Time left:11d 22h 36m
USA AUDIO RECORDING STUDIO NO NOISE DUAL 600 WATT VARIAC WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$689.00Time left:11d 22h 45m
NO NOISE FREE DUAL VARIAC WALL TUNGSTEN LED VARIABLE LIGHTING FAN SPEED DIMMER
 
Buy It Now or Best Offer$689.00Time left:12d 19h 22m
USA MADE 240 VOLT DUAL METERED VARIAC 4 AUDIO RESEARCH 600MKIII STEREO TUBE AMP
 
Buy It Now or Best Offer$649.00Time left:11d 22h 17m
DUAL METERED 3000 WATT VARIAC 4 AUDIO RESEARCH 600MKIII AUDIO TUBE AMP AMPLIFIER
 
Buy It Now or Best Offer$649.00Time left:11d 22h 27m
GR 230V DUAL METERED VARIAC 4 EUROPEAN MAINS POWER AUDIO TUBE AMPLIFIERS PRE AMP
 
Buy It Now or Best Offer$649.00Time left:11d 22h 27m
GENERAL RADIO W20MT3A 0-140V@0-18A DUAL METERED VARIAC AC TEST LIFETIME WARRANTY
 
Buy It Now or Best Offer$649.00Time left:11d 22h 30m
TECHNIPOWER GENERAL RADIO GENRAD GR W20MT3A DUAL ANALOG METERED VARIAC AC SOURCE
 
Buy It Now or Best Offer$649.00Time left:11d 22h 36m
USA GENERAL RADIO W20HMT3A 240 VOLT 0-280V@ 0-8A DUAL METERED TEST BENCH VARIAC
 
Buy It Now or Best Offer$649.00Time left:11d 22h 44m
HOT WIRE FOAM CUTTER CUTTING 600 WATT VARIABLE TEMPERATURE POWER SUPPLY AIRFOIL
 
Buy It Now or Best Offer$589.00Time left:11d 22h 9m
USA AUDIO VIDEO RECORDING STUDIO NO NOISE REMOTE CONTROL VARIAC LIGHTING DIMMER
 
Buy It Now or Best Offer$589.00Time left:11d 22h 9m
GENERAL RADIO DRCO DUAL METERED VARIAC 4 EUROPEAN TUBE AUDIO AMP MCINTOSH C22
 
Buy It Now or Best Offer$589.00Time left:11d 22h 14m
SPLASH PROOF VARIAC RECTIFIER 4 COLOR TITANIUM JEWELRY ALUMINUM HARD ANODIZING
 
Buy It Now or Best Offer$589.00Time left:11d 22h 19m
USA MADE 3K VARIAC LIGHTING LIGHT DIMMER FOR MOLE RICHARDSON QUARTZ PAR FRESNEL
 
Buy It Now or Best Offer$589.00Time left:11d 22h 24m
GENERAL RADIO TRIPLE METERED VARIAC AC POWER LINE ANALYZER CONDITIONER REGULATOR
 
Buy It Now or Best Offer$589.00Time left:11d 22h 29m
USA MADE 3100 WATT TESLA COIL JACOBS LADDER HIGH VOLTAGE NEON TRANSFORMER VARIAC
 
Buy It Now or Best Offer$589.00Time left:11d 22h 41m
TECHNIPOWER GENRAD GENERAL RADIO W5MT3AW TRIPLE METERED TEST BENCH VARIAC >NEW
 
Buy it now$589.00Time left:11d 22h 47m
 USA MADE DUAL METERED VARIAC FOR AUDIO RESEARCH VTM200 AUDIO TUBE AMP AMPLIFIER
 
Buy It Now or Best Offer$549.00Time left:11d 22h 16m
GENERAL RADIO GR W10MT3A DUAL METERED VARIAC 4 WESTERN ELECTRIC 300B TUBE AUDIO
 
Buy It Now or Best Offer$549.00Time left:11d 22h 17m
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