Updated: 2/9/09
I am in the process of finalizing this list of TM500 / TM5000 instruments. I have confirmed the existence of each of these instruments several ways.
All the items in this list have either:
Please contact me off list with additions or corrections. Wherever possible please provide a picture, a brief description of its function, and/or a catalog reference. Updates can be sent to david@slack.com to be forwarded to me. Thanks, in advance, to all who have contributed to the list.
Dennis Tillman, Bellevue, WA (USA)
TM501 ONE COMPARTMENT POWER MODULE MAINFRAME TM501A ONE COMPARTMENT POWER MODULE MAINFRAME TM502A TWO COMPARTMENT POWER MODULE MAINFRAME TM503 THREE COMPARTMENT POWER MODULE MAINFRAME (SINGLE STRAP HANDLE) TM503A THREE COMPARTMENT POWER MODULE MAINFRAME (ADJUSTABLE BAIL / HANDLE) TM503B 3 COMPARTMENT POWER MODULE MAINFRAME (NICER ADJUSTABLE BAIL / HANDLE) TM504 FOUR COMPARTMENT POWER MODULE MAINFRAME TM515 TRAVELER PORTABLE POWER MODULE MAINFRAME, 5 SLOT TM506 6 COMPARTMENT POWER MODULE MAINFRAME, GET OPT. 2 INTERFACE TM506A 6 COMPARTMENT POWER MODULE MAINFRAME, GET OPT. 2 INTERFACE RTM506 RACKMOUNT SIX COMPARTMENT POWER MODULE MAINFRAME TM5003 THREE COMPARTMENT POWER MODULE MAINFRAME WITH GPIB TM5006 SIX COMPARTMENT POWER MODULE MAINFRAME WITH GPIB TM5006A SIX COMPARTMENT POWER MODULE MAINFRAME WITH GPIB
TEKTRONIX TM500 / TM5000 PLUGINS AND ACCESSORIES
AA501 DISTORTION ANALYZER AA501A DISTORTION ANALYZER AA5001 PROGRAMMABLE DISTORTION ANALYZER AF501 TUNABLE BANDPASS FILTER / AMPLIFIER, FILTERING TO 35 KHZ AFG5101 PROGRAMMABLE ARBITRARY/ FUNCTION GENERATOR AFG5102 PROGRAMMABLE ARBITRARY/ FUNCTION GENERATOR (VERY RARE) (HAKAN HINZE HAS ONE) AM501 OPERATIONAL AMPLIFIER AM502 DIFFERENTIAL AMPLIFIER AM503 CURRENT PROBE AMPLIFIER AM503A CURRENT PROBE AMPLIFIER WITH DIGITAL CURRENT / DIVISION READOUT AM503B CURRENT PROBE AMPLIFIER WITH DIGITAL CURRENT / DIVISION READOUT AM503S CURRENT PROBE AMPLIFIER. PART OF A COMPLETE AC / DC CURRENT PROBE SYSTEM AM5030 PROGRAMMABLE CURRENT PROBE AMPLIFIER AM511 CATV PREAMPLIFIER FOR USE WITH 7L12 OR 7L13 SPECTRUM ANALYZERS AT5010 GPIB PROGRAM ATTEN AWG5102 ARBITRARY WAVEFORM GENERATOR AWG5105 ARBITRARY WAVEFORM GENERATOR (HAKAN HINZE HAS SEEN THIS PLUGIN) CG551AP PROGRAMMABLE (OSCILLOSCOPE) CALIBRATION GENERATOR CG5001 PROGRAMMABLE (OSCILLOSCOPE) CALIBRATION GENERATOR CG5010 PROGRAMMABLE (OSCILLOSCOPE) CALIBRATION GENERATOR CG5011 PROGRAMMABLE (OSCILLOSCOPE) CALIBRATION GENERATOR DA4084 PROGRAMMABLE DISTORTION ANALYZER (VERY RARE) DC501 DIGITAL COUNTER, 7 DIGIT, 110 MHZ DIRECT COUNTING DC502 DIGITAL COUNTER, 7 DIGIT, 100 MHZ DIRECT, 550 MHZ W PRESCALER DC503 UNIVERSAL COUNTER / TIMER, 7 DIGIT, 100 MHZ DIRECT COUNTING DC503A UNIVERSAL COUNTER / TIMER, 8 DIGIT, 125 MHZ DIRECT COUNTING DC504 DIGITAL COUNTER / TIMER, 5 DIGIT, 80 MHZ DIRECT COUNTING DC504A DIGITAL COUNTER / TIMER, 6 DIGIT, 100 MHZ DIRECT COUNTING DC505 UNIV. COUNTER / TIMER, 7 DIGIT 225 MHZ DIRECT DC505A UNIV. COUNTER / TIMER, 7 DIGIT 225 MHZ DIRECT DC508 FREQ. COUNTER, 9 DIGIT, 10 HZ TO 1 GHZ DIRECT DC508A FREQ COUNTER, 9 DIGIT, 10 HZ TO 1.3 GHZ DIRECT DC509 UNIVERSAL COUNTER / TIMER, 8 DIGIT, 135 MHZ DC510 UNIVERSAL COUNTER / TIMER, 9 DIGIT, 350 MHZ DC5004 DIGITAL COUNTER / TIMER, 6 DIGIT, 100 MHZ DC5009 PROGRAMMABLE UNIVERSAL COUNTER TIMER, 8 DIGIT, 135 MHZ DC5010 PROG. UNIV. COUNTER TIMER, 9 DIGIT, 350 MHZ DD501 DIGITAL DELAY EVENTS COUNTER DL502 DIGITAL LATCH, 16 CHANNEL DM501 DIGITAL MULTIMETER, 4« DIGIT, 0.1% DC VOLTAGE ACCURACY DM501A DIGITAL MULTIMETER, 4« DIGIT, 0.05% ACCURACY, TRUE RMS, DB DM502 DIGITAL MULTIMETER, 3« DIGIT, 0.1% DC, DB AND TEMPERATURE DM502A DIGITAL MM 3« DIGIT, 0.1% AUTORANGING, TRUE RMS, DB, TEMP DM504A DIGITAL MULTIMETER, 4« DIGIT, 0.05% ACCURACY, TRUE RMS DM505 DIGITAL MULTIMETER, 3« DIGIT, 0.1% DC ACCURACY DM511 DIGITAL MULTIMETER, 4« DIGIT, AUTORANGING DM5010 PROGRAMMABLE DIGITAL MULTIMETER, 4« DIGIT, 0.015% ACCURACY DM5110 PROGRAMMABLE DIGITAL MULTIMETER, 4« DIGIT, AUTORANGING DM5120 PROGRAMMABLE DIGITAL MULTIMETER, 6« DIGIT DM5520 PROGRAMMABLE DIGITAL MULTIMETER, 6« DIGIT, IN A STAND ALONE TM5003 DP100 DIGITAL VIDEO PROBE DP501 DIGITAL PRESCALER, 1.3 GHZ DIRECT COUNTING FG501 FUNCTION GENERATOR, 5 WAVEFORMS, .001 HZ TO 1 MHZ FG501A FUNCTION GENERATOR, 5 WAVEFORMS, .002 HZ TO 2 MHZ FG502 FUNC. GENERATOR, 5 WAVEFORMS, .1 HZ TO 11 MHZ, VCF AND GATED FG503 FUNCTION GENERATOR, 3 WAVEFORMS, 1 HZ TO 3 MHZ, VCF FG504 SWEEP FUNCTION GENERATOR, 3 WAVEFORMS, .001 HZ TO 40 MHZ, FG507 SWEEPING FUNCTION GENERATOR, .002 HZ TO 2 MHZ FG5010 PROGRAMMABLE FUNCTION GEN., .002 HZ TO 20 MHZ, 4 DIGITS LA501 LOGIC ANALYZER, 4 CHANNEL LA501W LOGIC ANALYZER, 4 CHANNEL MI5010 PROGRAMMABLE MULTIFUNCTION INTERFACE MI5010 / 50M10 PROGRAMMABLE A/D CONVERTER CARD MI5010 / 50M20 PROGRAMMABLE D/A SCANNER CARD MI5010 / 50M30 PROGRAMMABLE DIGITAL INPUT / OUTPUT CARD MI5010 / 50M40 PROGRAMMABLE RELAY SCANNER CARD MI5010 / 50M41 PROGRAMMABLE LOW LEVEL SCANNER CARD MI5010 / 50M41 / M41A1 50M41 GENERAL PURPOSE LOW LEVEL AMPLIFIER, 10 DIFFERENTIAL INPUTS, SWITCHABLE GAIN MI5010 / 50M41 / M41A2 50M41 TYPE J THEROCOUPLE AMPLIFIER, 10 GUARDED INPUTS, TEMPERATURE COMPENSATION MI5010 / 50M41 / M41A3 50M41 TYPE K THEROCOUPLE AMPLIFIER, 10 GUARDED INPUTS, TEMPERATURE COMPENSATION MI5010 / 50M41 / M41A4 50M41 TYPE E THEROCOUPLE AMPLIFIER, 10 GUARDED INPUTS, TEMPERATURE COMPENSATION MI5010 / 50M41 / M41A5 50M41 TYPE T THEROCOUPLE AMPLIFIER, 10 GUARDED INPUTS, TEMPERATURE COMPENSATION MI5010 / 50M41 / M41A6 50M41 TYPE S THEROCOUPLE AMPLIFIER, 10 GUARDED INPUTS, TEMPERATURE COMPENSATION MI5010 / 50M41 / M41A7 50M41 TYPE R THEROCOUPLE AMPLIFIER, 10 GUARDED INPUTS, TEMPERATURE COMPENSATION MI5010 / 50M41 / M41A8 50M41 TYPE B THEROCOUPLE AMPLIFIER, 10 GUARDED INPUTS, TEMPERATURE COMPENSATION MI5010 / 50M50 PROGRAMMABLE MEMORY CARD MI5010 / 50M70 PROGRAMMABLE DEVELOPMENT CARD MR501 MONITOR, 2 MHZ X-Y BANDWIDTH, 10 MV/DIV MX5010 MULTIFUNCTION INTERFACE EXTENDER OA522 PROGRAMMABLE OPTICAL ATTENUATOR, 62.5 uM MULTIMODE FIBER OA5002 PROGRAMMABLE OPTICAL ATTENUATOR, SINGLE MODE FIBER OA5012 PROGRAMMABLE OPTICAL ATTENUATOR, 50 uM MULTIMODE FIBER OA5022 OPTICAL ATTENUATOR, 1100-1600 nM OA5032 OPTICAL ATTENUATOR , 750-1600 nM OCP5002 2GHZ OPTICAL CONVERTER / POWER METER OIG501 OPTICAL IMPULSE GENERATOR, 850 nM OIG502 OPTICAL IMPULSE GENERATOR, 1300 nM OR501 OPTICAL TO ELECTRICAL (O/E) CONVERTER OR502 OPTICAL TO ELECTRICAL (O/E) CONVERTER ORS2488 SDH/SONET REFERENCE RECEIVER (VERY RARE) OT502 ELECTRICAL TO OPTICAL (E/O) CONVERTER OT503 ELECTRICAL TO OPTICAL (E/O) CONVERTER OT504 ELECTRICAL TO OPTICAL (E/O) CONVERTER (RARE) PFG5105 PROGRAMMABLE PULSE / FUNCTION GENERATOR (HAKAN HINZE HAS ONE) PG501 PULSE GENERATOR, 5 HZ TO 50 MHZ, SIMULTANEOUS + AND - OUTS PG502 PULSE GENERATOR, 10 HZ TO 250 MHZ, 1 nS TRANSITION PG503 PULSE GENEARTOR, 10 HZ TO 250 MHZ, 200 pS TRANSITION PG505 PULSE GENERATOR, 1 HZ TO 100 KHZ, 80 V OUTPUT PG506 CALIBRATION GEN., 10 HZ TO 1 MHZ, DEFLECTION ERROR READOUT PG506A CALIBRATION GEN., 10 HZ TO 1 MHZ, DEFLECTION ERROR READOUT PG507 DUAL OUTPUT PULSE GENERATOR, 5 HZ TO 50 MHZ PG508 PULSE GEN., 5 HZ TO 50 MHZ, INDEPENDENT RISE AND FALL, DELAY PG509 PULSE GENERATOR (RARE). SIMILAR TO (BUT NOT THE SAME AS) THE 067-1094-99 PG5110 PROGRAMMABLE PULSE GENERATOR., 0.1 HZ TO 50 MHZ, 2 CHANNEL PS501 POWER SUPPLY, FLOATING OUTPUT 0-20 V, CURRENT LIMIT 0-400 MA PS501-1 POWER SUPPLY, SAME AS PS 501, READOUT BY PRECISION 10T POT PS501-2 POWER SUPPLY, SAME AS PS 501, READOUT BY DUAL RANGE METER PS502 DUAL TRACKING POWER SUPPLY, 10-20 V OR 20-40 V PS503 DUAL POWER SUPPLY, + & - IND. CONTROLS, 0-20 V OR 0-40 V PS503A TRIPLE POWER SUPPLY, IND. + & - CONTROLS, DUAL TRACKING PS505 POWER SUPPLY, FLOATING OUTPUT 3-5.5 V, 4 A, OV PROTECTED PS5004 PROGRAMMABLE PRECISION POWER SUPPLY, 0-20 V FLOATING OUT PS5010 PROGRAMMABLE TRIPLE POWER SUPPLY RG501 RAMP GENERATOR, 10 ęS TO 10 S RAMP DURATION SA501 SIGNATURE ANALYZER (ALSO KNOWN AS 067-1090-00) (EXTREMELY RARE) SC501 TRIGGERED SWEEP OSCILLOSCOPE, 5 MHZ, 10 MV/DIV, SINGLE TRACE SC502 TRIGGERED SWEEP OSCILLOSCOPE, 15 MHZ, 10 MV/DIV, DUAL TRACE SC503 BISTABLE STORAGE SCOPE, 10 MHZ, TRIG. SWP, 10 MV/DIV, DUALTRACE SC504 TRIGGERED SWEEP SCOPE, 80 MHZ, 10 MV/DIV, DUAL TRACE, X-Y SG502 RC OSCILLATOR, 5 HZ TO 500 KHZ SINE / SQUARE WAVE, LOW DIST. SG503 SIGNAL GENERATOR, LEVELED VARIABLE OUTPUT 250 KHZ TO 250 MHZ SG504 SIGNAL GENERATOR, LEVELED VARIABLE OUT, 245 MHZ TO 1050 MHZ SG505 ULTRA LOW DISTORTION OSCILLATOR, 10 HZ TO 100 KHZ SINE WAVE SG505 OPT. 1 ULTRA LOW DISTORTION OSCILLATOR WITH IM TEST SIGNAL SG505 OPT. 2 ULTRA LOW DISTORTION OSCILLATOR, FULLY BALANCED OUTPUT SG5010 PROGRAMMABLE OSCILLATOR, LOW DISTORTION SG5030 PROGRAMMABLE LEVELED SINE WAVE GENERATOR, .1HZ TO 550 MHZ SG5050 PROGRAMMABLE LEVELED SINE WAVE GENERATOR, 10 KHZ TO 2.5 GHZ (MADE BY TEGAM) SI5010 PROGRAMMABLE R.F. SCANNER SI5020 (A VERSION) PRGM MICROWAVE SWITCHER (067-0197-99) CENTER CONNECTORS PRESENT ON BOTH SWITCHES) SI5020 (B VERSION) PRGM MICROWAVE SWITCHER (067-0198-99) CENTER CONNECTOR ON LOWER SWITCH B REMOVED) SI5020 (C VERSION) PRGM MICROWAVE SWITCHER (067-0199-99) CENTER CONNECTORS ON BOTH SWITCHES REMOVED) SW503 SWEEP GENERATOR, 1 TO 400 MHZ, DOT MARKER SYSTEM TG501 TIME MARK GENERATOR, 5 S TO 1 NS, TIMING ERROR READOUT TG501A TIME MARK GENERATOR, 5 S TO 1 NS, TIMING ERROR READOUT TR501 TRACKING GEN. (FOR USE WITH 7L12 / 7L13 SPECTRUM ANALYZERS) TR502 TRACKING GEN. (FOR USE WITH 7L12 / 7L13 SPECTRUM ANALYZERS) TR503 TRACKING GEN. (FOR USE WITH 492 AND 496 SPECTRUM ANALYZERS) TVC501 TIME-INTERVAL TO VOLTAGE CONVERTER (RARE) WR501 WORD RECOGNIZER WITH DIGITAL DELAY 013-0146-00 AUXILIARY (BREADBOARD) CIRCUIT BOARD KIT FOR AM501 013-0152-00 FRONT-PANEL CIRCUIT BOARD ADAPTER KIT FOR PS501-1 OR PS503 015-0408-00 PEAK TO PEAK DETECTOR (THIS MIGHT ALSO BE KNOWN AS A 067-0625-00) 016-0195-01 TM-500 BLANK PANEL 016-0362-00 TM-500 PLUG-IN STORAGE COMPARTMENT 016-0597-00 MANUAL (ONE SHOT) TRIGGER GENERATOR FOR THE RG501, PG501, AND PG505 021-0374-00 GPIB DECODER (FOR THE 7B90P) (VERY RARE) 035-5052-00 AUDIO / NOISE / PULSE INPUT, HEADPHONE OUTPUT PLUG-IN (EXTREMELY RARE) 040-0652-01 CUSTOM PLUG-IN KIT, SINGLE COMPARTMENT 040-0754-00 CUSTOM PLUG-IN KIT, DOUBLE COMPARTMENT 067-0197-99 SEE SI5020 (A VERSION) 067-0197-99 SEE SI5020 (B VERSION) 067-0199-99 SEE SI5020 (C VERSION) 067-0184-00 INPUT-C CHARACTERIZER (RARE) 067-0609-00 7000 SERIES MAINFRAME COMMON MODE REJECTION CHECKER 067-0625-00 PEAK TO PEAK DETECTOR (THIS MIGHT ALSO BE KNOWN AS A 015-0408-00) 067-0639-00 POWER SUPPLY CHECKER FOR 7000 MAINFRAMES 067-0645-02 TM-500 FLEXIBLE EXTENDER CABLE 067-0690-00 HIGH RESOLUTION TEST GENERATOR (MONITOR RASTER GENERATOR) 067-0699-99 LCD MILLIOHM-VOLTMETER (EXTREMELY RARE) 067-0741-99 PRECISION (>1X10-9) TIMEBASE (CONTAINS AN HP OVENIZED CRYSTAL OSCILLATOR) 067-0807-00 DVST DISPLAY EXERCISER. USED TO TEST THE GMA SERIES DISPLAY MONITORS 067-0838-99 4633 TEST FIXTURE (EXTREMELY RARE) 067-0843-00 DIGITAL EXERCISER. USED TO REMOTELY CONTROL AND TEST THE GMA 101A DISPLAY MONITOR 067-0872-99 LOGIC DEMO AID FOR 7D01, DF1, AND DF2 (EXTREMELY RARE) 067-0885-00 MICROWAVE COMB GENERATOR (RECOMMENDED FOR CALIBRATION OF THE 7L18) 067-0893-99 TWO TONE IM TESTER, 1.5 GHZ OUTPUT, 20 DBM EACH, 60 KHZ SEPARATION 067-0916-00 VIDEO AMPLITUDE CALIBRATION FIXTURE 067-0918-00 TSG6 / TSG16 / TSG26 CALIBRATION FIXTURE 067-0938-00 NOTCH FILTER CALIBRATION FIXTURE (FOR CALIBRATION OF THE SG505 OSCILLATOR) 067-0976-99 L.O. GENERATOR (FOR CATV TESTING), VERY RARE 067-0996-00 GPIB EXTENDER CABLE. USED WITH TM5003 AND TM5006. 067-1011-00 DIGITAL SWEEP GENERATOR 067-1037-00 SET UP / HOLD TIME TEST FIXTURE 067-1039-00 PATTERN GENERATOR 067-1039-01 PATTERN GENERATOR WITH COLOR BARS 067-1090-00 SIGNATURE ANALYZER (ALSO KNOWN AS SA501) (EXTREMELY RARE) 067-1094-99 PULSE GENERATOR (VERY RARE). SIMILAR TO (BUT NOT THE SAME AS) THE PG509 067-1178-00 PROBE NORMALIZER (VERY RARE) 067-1221-00 DISPLAY TEST GENERATOR (RARE) 1105 TYPE 1105 BATTERY POWER SUPPLY FOR TM500 MAINFRAMES 1434 1434 VIDEO NOISE GENERATOR (TEK DUAL WIDE PLUGIN, EXTREMELY RARE) SCALCF1 CALIBRATION FIXTURE. PART OF THE TEKTRONIX SCOPECAL SYSTEM NONE TEKTRONIX 4611 / 4631 TEST AID NONE TEKTRONIX HIGH AMPLITUDE PULSE GENERATOR NONE TEKTRONIX 7A42 DEMONSTRATION AID
NON-TEKTRONIX TM500 / TM5000 PLUGINS
PTB-100 BALL / EFRATOM PRECISION TIME BASE (RUBIDIUM STANDARD) NONE BALL-SCREW TEST SETUP (PURPOSE UNKNOWN) (COURTESY CHRISTIAN WEAGLE) 31109 BENNETT TEST MODULE (PURPOSE UNKNOWN) (COURTESY CHRISTIAN WEAGLE) 327-12 PHONO CITY OF HOPE NATIONAL MEDICAL CENTER ECG FIXTURE 327-08 ECG CITY OF HOPE NATIONAL MEDICAL CENTER ECG FIXTURE (COURTESY CHRISTIAN WEAGLE) DAC1024T DIGITAL AUDIO CORP. ADAPTIVE DIGITAL FILTER RCW320T DIGITAL AUDIO CORP. LABORATORY SIGNAL PROCESSOR FOR VOICE SURVEILLANCE TDA501 GRASS VALLEY GROUP TELEVISION NON-LINEAR DISTORTION ANALYZER TD9901 LASER PRECISION CORP. OPTICAL TIME DOMAIN REFLECTOMETER (EXTREMELY RARE) Q???? LASERTRON LASER TEST MODULE QLX-1300 LASERTRON LASER TRANSMITTER QRX-700 LASERTRON LIGHTWAVE RECEIVER QLX-1000 LASERTRON LIGHTWAVE TRANSMITTER (COMES IN MANY DIFFERENT WAVELENGTH VARIATIONS) Q???? LASERTRON LOCK-IN AMPLIFIER MD 702 METROTEK INC., DETECTOR MG 701 METROTEK INC., GATE MP 203 METROTEK INC., PULSER MP 215 METROTEK INC., PULSER MP 217 METROTEK INC., PULSER MR 101 METROTEK INC., RECEIVER MR 106 METROTEK INC., RECEIVER M? ??? METROTEK INC., SQUARE PULSER M? ??? METROTEK INC., SQUARE WAVE PULSER M0002 MOS AID SRT1 16 PIN DRAM PERSONALITY MODULE M0003 MOS AID SRT1 16 PIN DRAM POWER MODULE M0001 MOS AID SRT1 SIMPLE RAM TESTER FT-01 NAVAL COASTAL SYSTEMS LAB FREQUENCY TRANSLATOR ZIG-T OREGON ANALOG TOOLS ULTRA-HIGH IMPEDANCE AMP. / BUFFER (COURTESY CHRISTIAN WEAGLE) PI-100A PULSE INSTRUMENTS 4 CHANNEL CLOCK GENERATOR PI-210 PULSE INSTRUMENTS 4 CHANNEL WORD GENERATOR PI-702 PULSE INSTRUMENTS DUAL BIPOLAR BIAS SUPPLY PI-110 PULSE INSTRUMENTS DUAL CHANNEL CLOCK PERIOD MULTIPLIER PI-451 PULSE INSTRUMENTS MOS / CCD DRIVER PI-451A PULSE INSTRUMENTS PROGRAMMABLE PULSE DRIVER PI-454 PULSE INSTRUMENTS MOS / CCD DRIVER PI-458 PULSE INSTRUMENTS PROGRAMMABLE PULSE DRIVER PI-720 PULSE INSTRUMENTS PROGRAMMABLE BIPOLAR DC SOURCE 1024 SCANOPTIK, INC., 'QUICK BROWN FOX' MESSAGE GENERATOR WITH RS232 / TTL OUTPUTS PS SIGNETICS 0 - 20V DUAL POWER SUPPLY 8132 SPECTRACOM BATTERY POWER SUPPLY 8212 SPECTRACOM CHART RECORDER 8131 SPECTRACOM HIGH STABILITY FREQUENCY STANDARD OSCILLATOR 8150 SPECTRACOM PRECISION PHASE COMPARATOR 8163 SPECTRACOM WWVB RECEIVER NONE UNKNOWN MFG., 60 HZ INTEGRATOR NAU 7/9 UNKNOWN MFG., COMBINES TRANSDUCER DRIVE VOLTAGE/MIXER/FREQ MONITOR & NOISE INPUTS NONE UNKNOWN MFG., LIQUID CRYSTAL DRIVER