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By them now, as production has ceased due to 

Special Sale:

1) Buy a rebuilt Dynalyzer III, IIIA or IIIU high voltage unit and digital display SET,  and get a pair of good   5 ft ( 1.5 M)   HV cables, also  carry cases as stock permits. Act now for best selection. Choice of cases or double boxes.

2) OEC 9600 c-arm auto cal box and cables for sale with the purchase of a Dynalyzer set. One available.

BONUS: free, Dynalyzer™ radiation probe set with a Dynalyzer™ set, if you ask for it. You get Victoreen 653 probe, cable, interface (with bias battery), and cable to digital display.

 We will give it to you free, without calibration- as is after a quick function check.  Offer valid as long as supply lasts. You can use it for MR/MAS measurements. If you want it calibrated later, send it to Fluke Biomedical or K and S associates.

Price of used Dynalyzer III,IIIA, IIIU high voltage unit includes  full internal rebuild done  by Dr. Shapiro, and calibration, and a set of good used cables.  Digital display comes with line cord and new or near new  interconnect cable. Buy them now, as the Display has been discontinued .

Dr. Jonathan S. Shapiro invented the Dynalyzer™ at Machlett Labs, Stamford CT in 1975. The design today is largely the same, with the exception of changes necessitated by obsolete electronic components. Dr. Shapiro was electronic subsystems Engineering Manager at Machlett Labs for 11 years.

Greenwich Instrument Co. Inc. in Greenwich, CT has available for resale the following used Dynalyzer™ X-ray test equipment, and voltage dividers, which have been reconditioned calibrated. 12 month warranty does not cover damage from high voltage overload. Dynalyzer™ High Voltage Units (HVUs) have all been examined and rebuilt internally with new light pipe, divider rod, check nuts and couplings. New Voltage dividers 12 month warranty. Price does not include high voltage cables. . Other equipment 30 day return only.
See below.

All equipment is calibrated prior to shipment, so give us time to process your order. Domestic credit cards accepted. Annual calibration is recommended for all test equipment. All items subject to prior sale. Order now for best selection! 

Revised 29-Oct-2016

Dynalyzer III or IIIA high voltage unit Rebuilt and calibrated:  This includes new light pipe, divider rod, check nuts and mA  transmitter coupling parts. Supplied with line cord and manual. Click on pictures for enlargements.  Dynalyzer III High Voltage Unit III (left) and IIIA (Right)

Dynalyzer IIIA high voltage unit||||
Picture of dynaly2 small||||
1 wk.
Dynalyzer High Voltage Unit (HVU)-subject to availability.
Radcal IIIU -$4000
Varian-Fischer IIIA  $3500
Machlett IIIA- $3000
Machlett III-$2550
Machlett Dyn II - $2100

Dynalyzer III digital display with or without printer, as available.  Calibrated.  Supplied with interconnect cable either new or like new at our option, line cord and manual . OEC interface modifications can be made at extra cost.

Dynalyzer III digital display||||
1 wk.
Varian Dynalyzer III with   Impact printer with RS232 $4000. Without printer, $3700

Machlett III w/o printer, $1000, add $150 for OEC mod;  with thermal printer, $3250 , add $325 for OEC mod. You may be supplied with a printer at our option, as stock allows.

Dynalyzer radiation probe set: Type 653 probe, int'f, cables & case. All tested for circuit functionality. No radiation available.
2 weeks for calibration.
SALE $250 with out calibration.
Free uncalibrated set (as-is) with display purchase on request.
Victoreen 07-470  or Nuclear Associates 07-476 high voltage xray divider. Calibrated. 100,000 :1 ratio. Looks similar to divider above. There are dents on side of can, but they work. poor high frequency response. Anode connection are tied together.
 NEW GICI 2000/ Parker Medical H917 voltage dividers. All used units rebuilt internally and calibrated. 10,000:1 ratio direct to scope, 1,000:1 ratio emulates GE bleeder. Excellent frequency /pulse response. See new equipment section for spec sheets.
 NEW $2250.00
 Cables extra.
GE x-ray  Voltage dividers 46-145966G1.  Anode connections are separate. Good for CT.
   $750  calibrated.

Ordering Info

Equipment is used and calibrated, except as noted. Dynalyzers and voltage dividers sold with one year warranty against operational defects. This equipment is used, and may have scratches and markings on it.  All equipment packed in 2 inch thick polyurethane foam pads. Copy of instruction manual provided.  Other equipment sold with 30 day return privilege, no other warranty.

All Dynalyzers, and voltage dividers have reprint manuals.
All merchandise in limited quantity and subject to prior sale. Please fax confirming order to

Terms:  EFT, Visa or Master Card, American Express
Shipping- F.O.B. Greenwich, CT, prepay and add

EXPORT: Wire transfer in advance. Shipping collect. Equipment made in USA. No overseas credit cards, please, except known accounts!
ADD 3% currency exchange premium.

Click here for a copy of our order form.