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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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144 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:6d 15h 14m
AUDIO RECORDING STUDIO 12 ZONE 14,000 WATTS VARIAC NO NOISE WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$6,889.00Time left:6d 15h 3m
USA SUPERIOR ELECTRIC EMT10153 135KVA 208V 230V 3Ø VARIAC LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$4,989.00Time left:6d 15h 28m
VARIAC WORLD MAINS 100-240 VOLT INPUT METERED ISOLATED REGULATED AC POWER SUPPLY
 
Buy It Now or Best Offer$2,789.00Time left:9d 10h 58m
WORLD MAINS 100-240 VOLT INPUT METERED ISOLATED VARIAC REGULATED AC POWER SUPPLY
 
Buy It Now or Best Offer$2,789.00Time left:9d 10h 58m
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:6d 15h 18m
GENERAL RADIO 1583 13.6KVA 3Ø AUTOMATIC LABORATORY POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$1,989.00Time left:6d 15h 20m
SUPERIOR ELECTRIC IES 25007 9KW 120V 400HZ POWER LINE VOLTAGE REGULATOR AVIATION
 
Buy It Now or Best Offer$1,989.00Time left:6d 15h 24m
CUSTOM DUAL METERED ISOLATED VARIAC TUBE TRANSISTOR AUDIO POWER AMPLIFIER 2800W
 
Buy it now$1,989.00Time left:12d 16h 41m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 25-AMP VARIAC
 
Buy it now$1,989.00Time left:18d 16h 27m
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:6d 15h 28m
NEW CUSTOM DUAL RANGE 120V 240V METERED ISOLATED VARIAC AC POWER SUPPLY SOURCE
 
Buy It Now or Best Offer$1,789.00Time left:6d 14h 48m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 15-AMP VARIAC
 
Buy it now$1,789.00Time left:18d 16h 24m
NEW CUSTOM MADE GENERAL RADIO CASED DUAL METERED 10-AMP BENCH VARIAC TUBE AUDIO
 
Buy it now$1,589.00Time left:18d 16h 24m
GR TECHNIPOWER 1582 9KW ANALOG DIGITAL AUDIO STUDIO HOME AC POWER LINE REGULATOR
 
Buy It Now or Best Offer$1,545.00Time left:6d 15h 7m
AUTOMATIC AC POWER LINE VOLTAGE REGULATOR CONDITIONER 4 MARINE BOAT YACHT SHORE
 
Buy It Now or Best Offer$1,545.00Time left:6d 15h 9m
AUTOMATIC 10KW AC POWER LINE VOLTAGE REGULATOR CONDITIONER 4 PORTABLE GENERATOR
 
Buy It Now or Best Offer$1,545.00Time left:6d 15h 19m
GENERAL RADIO 1592A 10KW 240 VOLT 1Ø AUTOMATIC AC POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$1,489.00Time left:6d 15h 15m
NEW CUSTOM MADE 0-140V@0-20A DUAL DIGITAL METERED CURRENT LIMITING BENCH VARIAC
 
Buy It Now or Best Offer$1,389.00Time left:25d 15h 44m
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:6d 14h 49m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 10-AMP VARIAC
 
Buy it now$1,289.00Time left:18d 16h 24m
US MADE VIDEO AUDIO RECORDING STUDIO TRIPLE 1200WATT VARIAC WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$1,089.00Time left:6d 15h 3m
NEW CUSTOM MADE PORTABLE DUAL METERED VARIABLE AC TRANSFORMER GUITAR AMP VARIAC
 
Buy It Now or Best Offer$1,089.00Time left:15d 10h 22m
GENRAD 1581A 6KW ANALOG DIGITAL STUDIO AUTOMATIC AC POWER LINE VOLTAGE REGULATOR
 
Buy It Now or Best Offer$989.00Time left:6d 15h 7m
NEW VIDEO AUDIO RECORDING STUDIO NOISE FREE 600 WATT VARIAC WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$889.00Time left:6d 15h 3m
NEW CUSTOM MADE DUAL METERED VARIABLE TRANSFORMER TUBE AUDIO GUITAR AMP VARIAC
 
Buy It Now or Best Offer$889.00Time left:13d 10h 57m
SUPERIOR ELECTRIC POWERSTAT 3PN246 246 VARIAC 0-280V @ 15A 4KW LIFETIME WARRANTY
 
Buy It Now or Best Offer$889.00Time left:26d 10h 13m
USA MADE VIDEO AUDIO RECORDING STUDIO NO NOISE DUAL 1200W VARIAC LIGHTING DIMMER
 
Buy It Now or Best Offer$789.00Time left:6d 15h 11m
ADJUSTABLE AMPS VOLTS ISOLATED VARIABLE AC DC POWER LINE SUPPLY EQUIPMENT TESTER
 
Buy It Now or Best Offer$789.00Time left:6d 15h 26m
0-280V@ 0-10A DIGITAL METERED ISOLATED VARIAC AC POWER SUPPLY SOURCE TEST BENCH
 
Buy It Now or Best Offer$789.00Time left:6d 15h 26m
DIGITAL VIDEO LOCATION STUDIO GRIP 3K FRESNEL PAR LIGHT NOISE FREE DIMMER VARIAC
 
Buy It Now or Best Offer$789.00Time left:17d 12h 16m
DIGITAL CINE LOCATION STUDIO STAGE LIGHT LIGHTING NO NOISE DIMMER VARIAC IN CASE
 
Buy it now$789.00Time left:18d 13h 25m
NEW CUSTOM MADE TEKTRONIX STYLE 0-140V@ 0-10A DUAL DIGITAL METERED BENCH VARIAC
 
Buy it now$789.00Time left:18d 16h 35m
RECORDING STUDIO NO NOISE FREE DUAL 300 WATT VARIAC IN WALL LIGHTING DIMMER LED
 
Buy It Now or Best Offer$689.00Time left:6d 14h 58m
USA AUDIO RECORDING STUDIO NO NOISE DUAL 300 WATT VARIAC IN WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$689.00Time left:6d 14h 58m
NEW WESTERN ELECTRIC VARIAC FOR VINTAGE 300B 2A3 TUBE AUDIO AMPLIFIER RACKMOUNT
 
Buy It Now or Best Offer$689.00Time left:6d 15h 3m
NIB NEW GENERAL RADIO TECHNIPOWER GENRAD W20 VARIAC 0-140V @ 20A KNOB DIAL PLATE
 
Buy It Now or Best Offer$689.00Time left:6d 15h 21m
USA AUDIO RECORDING STUDIO NO NOISE DUAL 600 WATT VARIAC WALL LIGHTING DIMMER
 
Buy It Now or Best Offer$689.00Time left:6d 15h 29m
NO NOISE FREE DUAL VARIAC WALL TUNGSTEN LED VARIABLE LIGHTING FAN SPEED DIMMER
 
Buy It Now or Best Offer$689.00Time left:7d 12h 7m
USA MADE 240 VOLT DUAL METERED VARIAC 4 AUDIO RESEARCH 600MKIII STEREO TUBE AMP
 
Buy It Now or Best Offer$649.00Time left:6d 15h 2m
DUAL METERED 3000 WATT VARIAC 4 AUDIO RESEARCH 600MKIII AUDIO TUBE AMP AMPLIFIER
 
Buy It Now or Best Offer$649.00Time left:6d 15h 11m
GR 230V DUAL METERED VARIAC 4 EUROPEAN MAINS POWER AUDIO TUBE AMPLIFIERS PRE AMP
 
Buy It Now or Best Offer$649.00Time left:6d 15h 11m
GENERAL RADIO W20MT3A 0-140V@0-18A DUAL METERED VARIAC AC TEST LIFETIME WARRANTY
 
Buy It Now or Best Offer$649.00Time left:6d 15h 15m
TECHNIPOWER GENERAL RADIO GENRAD GR W20MT3A DUAL ANALOG METERED VARIAC AC SOURCE
 
Buy It Now or Best Offer$649.00Time left:6d 15h 21m
USA GENERAL RADIO W20HMT3A 240 VOLT 0-280V@ 0-8A DUAL METERED TEST BENCH VARIAC
 
Buy It Now or Best Offer$649.00Time left:6d 15h 29m
HOT WIRE FOAM CUTTER CUTTING 600 WATT VARIABLE TEMPERATURE POWER SUPPLY AIRFOIL
 
Buy It Now or Best Offer$589.00Time left:6d 14h 53m
USA AUDIO VIDEO RECORDING STUDIO NO NOISE REMOTE CONTROL VARIAC LIGHTING DIMMER
 
Buy It Now or Best Offer$589.00Time left:6d 14h 53m
RARE HP HEWLETT PACKARD FACTORY TEST EQUIPMENT TOOL DUAL METERED VARIAC USA MADE
 
Buy It Now or Best Offer$589.00Time left:6d 14h 53m
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