Test Instrument Sales and Rental

Prop Sync Solutions Model TB2-1 tester

The model TB2-1

Now available, a new Test Instrument for Type II Woodward/Ontic Propeller Synchronizer and Synchrophaser systems.  It includes all necessary adapter cables and an illustrated User Manual, housed in an indestructible case.   Easy to connect into the system allowing you to investigate issues without risking damage by probing connectors !

Made in the USA

What it can do for you:

  • Allows you to identify problem areas in your Type II system, or confirm proper operation.
  • Provides access to critical aircraft system connections for all 28 volt Type II Woodward/Ontic propeller synchronizer and syncrophaser systems.
  • Precisely confirms adequate system inputs to minimize the need for oscilloscope use.
  • User friendly design with visual indicators of system inputs and outputs.
  • Monitors control box outputs during operation.
  • Ability to energize governor trim coils to verify system speed change capability.

This Type II System Test Instrument is compatible with all 28 VDC former Woodward/Ontic Type II systems including all aircraft makes and models.

Test Instrument FunctionsTest Instrument Panel Click to View Detail.


Type II Test Instruments in stock now!! Contact for pricing.  Dealer inquiries welcome


Type I Test Instruments. Contact for pricing.

To learn how you can greatly reduce troubleshooting time contact us.

Mark Rein | Prop Sync Solutions

Mark Rein | Prop Sync Solutions

Over twenty-five years as sole system troubleshooter and technical expert for both Woodward and Ontic.

I can provide you the technical expertise to get you going again.      ~Mark Rein

Quick Contact

Phone: 815-230-0300
Fax: 815-230-0332
Mobile: 815-298-7017
Email: mark@propsyncsolutions.com

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Your (prop sync system) troubleshooting kit it is absolutely fantastic.  Saved us a lot of time.  Thank you much for your help!

Your test box operated perfectly and identified the problem for us to repair.

“The TB2-1 tester was very helpful in finding the problem which was a grounded wire on the RE sensing circuit. Once fixed, we ran through the operational tests using the tester and the system worked well.”

“Your Type II Test Unit (TB2-1) works great !! Everything seems to be in sync now on the aircraft (pun very much intended). Thanks for all your help !!!”

“Thank you again for the great help, and the TB2-1 tester. It made my life easy!!”

“We had a customer come in with a 421B with a prop sync problem. He had been to several shops to have his prop sync repaired without any luck. Our customer mentioned that he saw Prop Sync Solutions on the internet, so I followed up and called. Being always concerned with completing jobs timely, I was impressed with how accessible Mark was. He was always quick to return calls and emails. I rented his Type 1 test box,and with his support was able to nail down the faulty component immediately.

Prop syncs can really soak up labor troubleshooting faults, and having a company like Prop Sync Solutions is a real benefit. I highly recommend them to anyone with a prop sync or prop synchrophaser problem”