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Parallax Technology, Inc.

List of used (and some new) electronic equipment and high voltage components for sale

Last updated September 24, 2022


We manufacture, sell and service CO2 lasers. Items on this page are our 'used or new surplus'. Please consider them accordingly.

Other surplus lists | Surplus items return policy

More stuff added frequently.     Prices do not include shipping.     High voltage stuff at bottom of page.
Product Specs and conditions;
Used: An item that has been used previously. The item may have some signs of cosmetic wear but is fully operational and functions as intended.
Average ship time is 2 to 4 days and may vary depending on complexity of packaging.
15 days returns from receipt of item EXCEPT for Free items, no returns.
- Buyer pays return shipping
Power cord included with all.
Description / Model No. Price
each
19" Electronic Rack 35U Photo 35U rack, 61" opening

19" Electronic Rack 38U Photo 38U rack, 66.5" opening

19" Dpuble Electronic Rack 40U Photo 40U double rack, 70" opening, 22" deep

35U, 38U, 40U (shown above) and a single opening 40U photo to follow. All with casters,

1, 0

1, 0

1, 0

Free for

pick up only.
Gone

  EG&G 124A Lock-in Amplifier with model 117 Differential Preamplifier and original instruction manual.
2 Hz to 210 KHz, sensitivity 1 nV to 500 mV, time constant 1 ms to 100 sec.
Photo EG&G 124A Photo Rear view 124A Photo 117Preamp
1 $900
Sold
EG&G 128A Lock-in Amplifier from Princeton Applied Research (PAR)
0.5 Hz to 100 KHz, sensitivity 1 uV to 250 mV,
Time constant 1 ms to 100 sec Photo Photo
1 $200
EG&G Rotron Propimax 3 series 409ZH Photo Photo
These are 400 Hz fans that produce 6 inches of static pressure or 220 CFM at zero head at 21,900 RPM !
They measure 3.75 inch diameter and 1.75 thick
Best of all; three (3) of these fans come with an
EG&G Deltac model DC88 power conversion module. It accepts 115 VAC at 5.1 Amp and produces the 400 Hz signal necessary for driving three fans. No starting capacitors are needed. 6x5x3 inches.
The fans and the power module are brand new in their original box.
Price is for the complete package of 3 fans and the power module.
 
set
(3 + 1)
$1,500 set
Sold
 
Tektronix 7904 osilloscope, mainframe with Tektronix camera and cart.
Arrow Tektronix 7904 osilloscope, mainframe plus cart (photo opens in new tab)
Free to a good home but Pick up only.
1, 0 Free.
Gone
 
Tektronix 7844 osilloscope, mainframe with Tektronix cart.
Arrow Tektronix 7844 osilloscope, mainframe plus cart (photo opens in new tab)
Free to a good home but Pick up only.
1, 0 Free.
Gone
Tektronix scope plug in Differential Amplifier type 3A9
Photo Tektronix type 3A9 plug in
 
2, 0 $10,
Sold
Tektronix scope plug Amplifier type 7A19
Photo Tektronix type 7A19 plug in
 
2, 0 $30,
Sold
Tektronix scope plug Amplifier type 7A15A
Photo Tektronix type 7A15A plug in
 
1, 0 $20,
Sold
Split tube furnace, horizontal, 1000 degree C ( 1832 degree F) Photo Photo
Manufacturer Hevi Duty Electric Co., Milwakee, WI.  (now Lindberg = SPX = Blue M !)

26 inches long and 13 inches in diameter. Heated area will accept items up to 2 inches wide and 20 inches long.
Operates on 115 VAC (4,200 Watt) and comes with heavy duty 50 Amp variac (also shown in photo).

50 Amp Variac $200.
50 Amp Variac is too heavy for UPS/FedEx and is offered for 'pick up' only.

1, 0

 

1, 0

Oven $500
Sold
--------
Variac
available
$200,
sold
Pulse Generator, Intercontinental Instruments, Inc. ( Chronetics) model GP-16, Photo Photo
Frequency 1 Hz to 100 MHz, Amplitude 2.5V to 20V, adjustable rise time and fall time 5 ns to 1 ms, Int. Gate, Trig. Man.
1
$600
Sold
Bird Model 43 Thruline(c) RF Wattmeter. Connectors type BNC. Accuracy +/- 5% fs.
The Bird Model 43 is the industry standard for RF power measurements with a wide selection of elements available to cover a wide choice of frequency ranges and power ranges.
Frequency Range 450 kHz to 2.7 GHz, Power Range 100 mW to 10 kW
Frequency & power range determined by optional plug-in elements.
This item includes 1 element 25-60 Mhz, 25 Watt. Other elements are Sold separately at other web sites. Wattmeter photos 3 Photos

  Product cataloge and detailed specifications from Bird Technology Inc.
1 $150
Power supply, Standard Power Inc, model SPS 30-120
output 120 Vdc @ 150 mA Photo Photo
input 115/230 - 47 to 400 Hz , 5 x 4 x 1.5 inch
 
 4 
2
$30
Epson FX-1050 Dot Matrix Printer - WIDE
9-pin impact dot matrix printer. The FX-1050 is the wide carriage version of the FX-850 printer. 220 cps in draft mode 45 cps in NLQ mode Handles up to 4-part forms. Excellent condition. Comes with an 'almost full' box of 17 inch wide paper Photo Photo
1
Gone
Free for
pick up only
Heater power supply, selectable :
0-50 VAC @ 12.5 A
0-37.5 VAC @ 25 A
0-25 VAC @ 37.5 A
0-12.5 VAC @ 50 A Photo Photo
1 $90
Conductive Floor Mats for Electro Static Discharge (ESD).
6x4 ft. Excellent condition with 'snap' cord connection to ground.
Cord NOT supplied. Ground cord available from Mouser Electronics for $14.
Mnfr. Charleswater Desco (at Google type Charleswater + Newton)
New mats cost between $300 to $400. See Mouser catalog. Photo Photo
4 $20 ea
Sold

Tantalum wire, 0.003" diameter
 
25 feet $50
AMETEK Precision Flow Indicator, 0.2 to 5 GPM,
measures 21" x 3.5" x 3.5" (New) Photo Photo
1 $50
Sold
Bio-Rad Laboratories,
Gel Slab Drier, Model 224 (Hoefer Scientific Instruments) PhotoPhoto
1 $75
SLOAN INSTRUMENT
Deposit Thickness Monitor Model DTM-3
PLUS Deposit Rate Controller MODEL DRC
1 $75
Sold
Electro Magnetic Interference ( EMI ) filter,
Cornell Dubilier Electronics --a div of Pacific Electric Co. Venice, CA
Model CDE 25 FA6-C, 25 Amp, 250V/110V, 0-60 Hz, (24" x 4" x 4", 20 lbs). EM filtersPhoto

What are these ? These industrial grade 25 Amp
filters sit between your wall plug (110 VAC) and your equipment and stop electromagnetic (EM) noise from getting into the lines. They eliminate noise generated by high current machinery turned ON / OFF or high peak currents generated by short pulses to get into the AC Lines and disturb computers and other digital devices on the floor.

2 0 $30 each
sold

HP X-Y Recorder Model 7044A with manualPhotoPhoto
1 $350
Sold
Oscilloscope, HP Model 1200B, Dual Trace, 100uV/div vertical, 100 ns/div horizontal. (Works perfectly) 2 0 $200
Sold
Spectroline (Spectronics Corp) model 1500 power supply for Discharge Lamps in far & near UV, visible and near infrared. Powers 10 metal vapor and 5 rare gas sources: Ar, Cd, Cs, He, Hg, HgCd, K, Kr, Na, Ne, Rb, Ti, Xe and Zn.
1 $100
Sold
Tektronix Type R561B Scope with Type 2B67 Time Base
and Type 3A9 Differential Amplifier
-This item must be "picked up". Otherwise please add ask us to quote packing and truck shipping. PhotoPhoto
1 $150
Sold
Deuterium Source, Oriel Model 6310 ; power supply, lamp housing & lamp
1 $550
Sold
- Ultrasonic Wire Bonder, TEMPRESS Model EMB 1100.
Wire sizes 0.0007 to 0.003 inch, Al or Au.
1 $150
Sold

Portable Combustible Gas Alarm Portable Combustible Gas AlarmPhoto
Mine Safety Appliances Co. (MSA) Model 100
Calibrated for PENTANE. (simple to run / no manual)

1 $30
sold
Tubular heaters -- otherwise known as CALROD or CAL ROD cal rodsPhoto

OGDEN A4Z-0659, 2660 Watt, 208 VAC, 49.5" long x 0.5" dia.
OGDEN A2Z-0658, 1590 Watt, 208 VAC, 32" long x 0.5" dia.

6
8
$35 ea
$25 ea
 
Constant Voltage transformer, Constant Voltage transformerPhoto

SOLA Electric Company model L1147
Primary 95-130 VAC,- Secondary 118 VAC at 0.5 Amp

1 0 $30 Sold
 
Heavy duty transformer, weighs 50 lbs. Heavy duty transformerPhoto

Universal Voltronics Corp, model 3 1 252

1 Free pick up
Gone

High Voltage Components / Instruments

- -
Tektronix High Voltage Probe 1000x attenuation, Model P-6015
3pf, 100 MegOhm DC to 75 MHz
20 kV Max DC Cont.
40 kV Peak Pulse
For observing and measuring pulse width of high voltage short pulses
We have measured HV pulses down to 40 ns.
Like new in original box with instructions. Photo

2 $100 ea
5C22 Hydrogen Thyratron 2 $100 ea
Sold
200,000 Volt DC Shielded high voltage coax cable RG 220/U
1/4 inch solid copper inner conductor, 1.25 inch Outer Diameter.
30 Ft $20/Ft
Sold
50 KV High Voltage Cable. Low impedance Coax for high voltage pulse operation. Photo various
length
$10/ft
All gone
Glasssman High Voltage Co., regulated HV dc power supply, 0-10 kv, 0-10mA Photo 1 $500
Sold
Regulated high voltage power supply, Keithley model 240, 0 to negative 1000 Vdc, Accuracy +/-1% or 0.1 Volt, 10mA Max. Photo 1 $500
Sold
Varian high voltage Transformer, 115/230 at 463 VA to 1075V at 440 mA 1 $30
Sold
Capacitors, high voltage, doorknob type, Sprague 715C-Z Photo
2700 PF, 40 KVdc. 2.25" dia. x 1.5" tall, 715C
3600 PF, 30 KVdc. 2.25" dia. x 1.25 tall, 715C
2500 PF, 30 KVdc. 2" dia x 1.25 tall, 715C
4600 PF, 15 KVdc. 2" dia x 7/8 tall, 715C
4800 PF, 20 KVdc, 2.25 dia x 1 1/8 tall, 715C
1800 PF, 30 KVdc. 1 7/8 dia x 1.5 tall type 6443
1200 PF, 30 KVdc. 1 5/8 dia x 1 5/8 tall type 6443
Minimum Order $100 + Shipping

5, $15ea
6, $15ea
2, $15 ea
4, $10 ea
1, $10
1, $10
1, $10
All for
$125
Sold
EG&G Hydrogen Thyratron HY-32 (surplus new, never used) 1 $900
Sold
High voltage capacitors Photo
Hermetically sealed, oil filled, 20KV, 0.1 uF
Film, 15 KV, 0.1 uF
1
1
$20
$20
Sold

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