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If the voltage of X90 is higher than the voltage set by the potentiometer X10 the output of the comparator goes low and resets the latch. The data input of the latch is connected to VCC, on the next positive flank of the interrupt signal X2 the data will be clocked to the output and the output will go high. R5 is to give the possibility to tune the resistance of R2 by removing R2 from the PCB and mounting R5 instead, R5 then replaces R2 in the calculations above. R2 decides the range of current that can be sensed and compared to the preset level. This is critical to the maximum amplitude attainable on the output and the range of amplitudes attainable. And thus affects the volume and dynamic range of the acoustic signal. The output of the latch X3 is connected to the interrupter, as explained in section 2.2. A low signal stops the output of the interrupter. A high signal allows the interrupt signal X2 to control the output.

Spec

Beskytte transistorene

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SN	V	Montert	Fungerer								Plassering	Kommentar
?	0.0										2009 Driver	Trimmepot flyttet til frontpanel. Var justert feil, IGBTene gikk over en lav sko, loddet inn potmeter på fremsiden og justerte til rett over normal bruk. Siden da har ikke IGBTene gått.
?	0.1										2014 Driver	Koblet ut, feil antall viklinger på feedbackspole (mangler feedbackspole?)
?	1.0										Marintesla	Solgt
01	1.0										TK500 SN:01
02	1.0											Montert U1 og U2
03	1.0
04	1.0
05	1.0
06	1.0
07	1.0
08	1.0
09	1.0
10	1.0

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