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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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400 200 VOLT DC POWER SUPPLY 6.3V FILAMENT TUBE AUDIO AMPLIFIER PREAMP 300B KT88
 
Buy it now$79.00Time left:1h 16m
GENERAL RADIO GR V5MT 5A VINTAGE AUDIO POWER AMPLIFIER VACUUM TUBE TESTER VARIAC
 
Buy it now$229.00Time left:1h 17m
KIKUSUI PAB 250-0.25 0-250V@ 0-250MA VARIABLE REGULATED METERED DC POWER SUPPLY
 
Buy it now$289.00Time left:9h 6m
4PC NIB NEW GERMAN ISOPHON P170/30 80W BASS WOOFER MID SPEAKER DRIVER LINE ARRAY
 
Buy it now$24.99Time left:1d 2h 51m
NEW USA MADE METER TEST LEADS SET PROBE BANANA PLUG CASE SIMPSON FLUKE TRIPLETT
 
Buy it now$19.00Time left:2d 2h 34m
NEW GENERAL RADIO TECHNIPOWER VB1 2AMP VARIAC BRUSH W2 W2M W2MT3 W2G3 W5H M2
 
Buy it now$29.00Time left:3d 2h 0m
HP USA SINE WAVE SWEEP AUDIO OSCILLATOR GUITAR AMPLIFIER AMP SPEAKER TEST SIGNAL
 
Buy it now$189.00Time left:3d 7h 12m
HP 204B SINE WAVE SWEEP AUDIO OSCILLATOR GENERATOR ROOM EQ STUDER REEL TO REEL
 
Buy it now$189.00Time left:3d 7h 12m
USA MADE TECHNIPOWER W10MT3A 0-10A DUAL METERED VARIAC LIFETIME GUARANTEE > NEW
 
Buy it now$549.00Time left:4d 4h 3m
SUPERIOR ELECTRIC 3PN116B POWERSTAT 0-140 VOLT 10 AMP BENCH VARIAC TRANSFORMER
 
Buy it now$249.00Time left:4d 4h 4m
ORIGINAL GENERAL RADIO KNOB SET 4 FAIRCHILD 670 STEREO AUDIO LIMITER COMPRESSOR
 
Buy it now$449.00Time left:4d 8h 6m
LAMBDA EMS 13-200-2-D 0-13V@ 0-200A DIGITAL VARIABLE ADJUSTABLE DC POWER SUPPLY
 
Buy it now$1,289.00Time left:6d 1h 23m
150A 13V COPPER NICKEL CHROME ZINC SILVER GOLD TANK DC ELECTRO PLATING RECTIFIER
 
Buy it now$989.00Time left:6d 3h 29m
NEW SWITCHCRAFT 2501F AMPHENOL 8075MC1F HEATHKIT 432-1 CONNECTOR TO BNC ADAPTER
 
Buy it now$19.00Time left:7d 2h 17m
HP 403B AC RMS VOLTMETER ANALOG 4 24-TRACK CALIBRATION TUBE LIMITER AUDIO STUDIO
 
Buy it now$289.00Time left:7d 5h 30m
USA MADE ANODIZE COPPER NICKEL GOLD HULL CELL PLATING RECTIFIER DC POWER SUPPLY
 
Buy it now$249.00Time left:9d 5h 3m
KEPCO ATE 15-6M 0-15V@ 0-6A VARIABLE REGULATED METERED LAB BENCH DC POWER SUPPLY
 
Buy it now$249.00Time left:9d 5h 3m
NEW ULTRA BRIGHT 12 VOLT DC SOLAR WHITE LIGHT BOAT MARINE LIGHTING > LED LAMP
 
Buy it now$9.99Time left:10d 4h 19m
USA POWERSTAT 116 VARIAC FOR VINTAGE TUBE AUDIO VALVE GUITAR AMP POWER AMPLIFIER
 
Buy it now$219.00Time left:10d 8h 0m
HEPA FILTERED PRESSURIZED AIR COOLED MISSION CRITICAL HACKINTOSH COMPUTER CASE
 
Buy it now$3,989.00Time left:11d 3h 37m
ENVIRONMENTALLY PROTECTED MICRO FILTERED PRESSURIZED AIR SLIDE OUT COMPUTER CASE
 
Buy it now$3,989.00Time left:11d 3h 37m
NEW INSTALLATION REPAIR MANUAL COPY 4 BENMAR CP-3050 A BUS RV BOAT WATER HEATER
 
Buy it now$19.00Time left:12d 6h 25m
BSA TRIUMPH NORTON VINCENT VELOCETTE AJS SEAGULL EWARTS FUEL VALVE REBUILD KITS
 
Buy it now$48.00Time left:13d 4h 39m
TUBE AUDIO AMPLIFIER UPGRADE BOOK 4 DYNACO EICO SCOTT MARANTZ MCINTOSH SCHEMATIC
 
Buy it now$34.95Time left:13d 8h 24m
NEW GENERAL RADIO GENRAD TECHNIPOWER VB2 5AMP 5A VARIAC BRUSH W5 W5MT3 W5MT3A M5
 
Buy it now$29.00Time left:15d 1h 33m
GENERAL RADIO W5MT3 TUBE AUDIO POWER AMP AMPLIFIER ANTIQUE HAM RADIO VARIAC >NEW
 
Buy it now$289.00Time left:15d 1h 35m
NEW USA MADE MILITARY 16PC METER DVM TEST LEADS SET SIMPSON 260 TRIPLETT 630 VOM
 
Buy it now$19.00Time left:16d 3h 6m
ONE-OF-A-KIND CUSTOM ELECTRONIC TEST BENCH ART VINTAGE METERED VARIAC PHOTOS CD
 
Buy it now$9.99Time left:16d 3h 8m
.001-.56UF 100 TO 600 VOLT SPRAGUE VITAMIN-Q 96P 196P TUBE GUITAR AMP CAPACITORS
 
Buy It Now or Best Offer$109.00Time left:16d 6h 50m
TUBE AUDIO AMPLIFIER CHASSIS MOUNT 8-PIN OCTAL SOCKET TO SEVEN PIN ADAPTER GRID
 
Buy It Now or Best Offer$19.00Time left:16d 7h 29m
SONY BVF-50 BVV BVP BROADCAST VIDEO CAMERA CAMCORDER STUDIO 5" B/W VIEWFINDER
 
Buy It Now or Best Offer$249.00Time left:16d 7h 41m
TUBE AUDIO AMPLIFIER PREAMP POWER SUPPLY 6AQ5 SOCKET CAPACITOR RESISTOR CHASSIS
 
Buy it now$69.00Time left:16d 7h 41m
SONY DXF-40 DXC SERIES BROADCAST VIDEO CAMERA CAMCORDER STUDIO 4" B/W VIEWFINDER
 
Buy It Now or Best Offer$99.00Time left:16d 7h 41m
60 AMP COPPER NICKEL CHROME RHODIUM GOLD ZINC PLATING ELECTRO FORMING RECTIFIER
 
Buy it now$489.00Time left:16d 7h 41m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 10-AMP VARIAC
 
Buy it now$1,289.00Time left:16d 7h 41m
NEW CUSTOM DUAL RANGE 120V 240V METERED ISOLATED VARIAC AC POWER SUPPLY SOURCE
 
Buy it now$1,789.00Time left:16d 7h 41m
KIKUSUI PAD 35-20L 0-35V@0-20A METERED REGULATED VARIABLE LINEAR DC POWER SUPPLY
 
Buy it now$549.00Time left:16d 7h 41m
0-600V DC ELECTRIC VEHICLE EV CAR HYBRID BATTERY CELL GRID CHARGER TOYOTA PRIUS
 
Buy it now$849.00Time left:16d 7h 41m
DRCO USA CUSTOM MADE DUAL RANGE 0-1A 0-10A ANALOG SIMPSON AMPS METER FOR VARIACS
 
Buy it now$229.00Time left:16d 7h 41m
KEYTEK 424 248 PROGRAMMER 1500 VOLTS 200 AMPS ELECTRICAL IMPULSE SURGE GENERATOR
 
Buy It Now or Best Offer$889.00Time left:16d 7h 41m
NEW USA WILMORE 1502-130-48-8-M3 DC TO DC POWER CONVERTER 105-140V IN 48V 8A OUT
 
Buy It Now or Best Offer$389.00Time left:16d 7h 41m
ELECTROSTATIC VOLTMETER SENSITIVE RESEARCH VOLTMETER MODEL ESH 0-100KV
 
Buy It Now or Best Offer$889.00Time left:16d 7h 42m
HEATED GLOVE BOX 36X30X18"  RFL INDUSTRIES INC MODEL 75A TEMPERATURE CONTROLLER
 
Buy It Now or Best Offer$800.00Time left:16d 7h 42m
PACE P5430 RF LOAD POWER WATT SWR SIGNAL STRENGTH METER TRANSCEIVER RADIO TESTER
 
Buy it now$89.00Time left:16d 7h 42m
US 3413D-1202.5 0-120V@0-2.5A DIGITAL VARIABLE REGULATED DC LAB POWER TEN SUPPLY
 
Buy it now$489.00Time left:16d 7h 42m
ALUMINUM HARD ANODIZING TYPE III TITANIUM COLOR ELECTROPLATING PLATING RECTIFIER
 
Buy it now$489.00Time left:16d 7h 42m
NEW CUSTOM MADE ONE OF A KIND GENERAL RADIO PORTABLE DUAL METERED 10-AMP VARIAC
 
Buy it now$1,289.00Time left:16d 7h 42m
CALIFORNIA INSTRUMENTS 101T PROGRAMMABLE DIGITAL VARIABLE AC POWER SUPPLY GPIB
 
Buy it now$789.00Time left:16d 7h 42m
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