metrix: LX109A (LX 109 A); Modification for linear reado

ID: 135183
metrix: LX109A (LX 109 A); Modification for linear reado 
03.Mar.07 19:33
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Martin Bösch (CH)
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Martin Bösch

Hallo, from our french speaking friend Jacques Dudoret we got a proposal, how to modify the tube analyzer Metrix L109 for linear filament voltage readout, using an operations amplifier circuit.
I hope, our english language tube analyzer specialists will understand the functioning reading the schematics.

Modification of Tube analyzer Metrix L109 for linear filament voltage readout

I hope this helps, kind regards Martin Boesch

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