Due to logistic issues all orders will ship within 2 to 4 business days.

Zilog microcontrollers  Z86E0412PSC or Z86E9412PSG If anyone has some and would  like to spare

We can negotiate values or exchange for Blue2 meters , contact

Bob's Blue2 Ring Tester - Microcontroller Version


This device is an evolution of the widely known Bob Parker's  Blue Ring Tester, this new design is much more sensitive and its circuitry allows for much longer, ringing measuring process,  so make it suited to allow a very wide types of inductors, coils and transformers even to those of AC 50Hz and output power transformers of the audio circuits, could be measured, regarding to determine the DUT's quality  resonant circuit. 

 This Ring Tester circuit has a polypropylene capacitor to facilitate the measurement resonance of the inductors, reducing signal losses and increasing the measurement efficiency, with this has resulted in a circuit that produces results with great measurement sensitivity on virtually every type of coils.

It is powered by two AA batteries which can also be rechargeable type, automatically shuts off after 5 minutes of non-use, has a single push button control, when turning on appears whirling patern, just to draw attention that is on.  There is no available KIT version for this meter.



 Bob Parker's Blue2 Ring Tester

Microcontroller version







68€ including shipping


75€ including shipping


82€ including shipping


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