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Take for example the front end of the SIGNAL COMPARATOR board. In the 6R1 it uses two | Take for example the front end of the SIGNAL COMPARATOR board. In the 6R1 it uses two | ||
7586 Nuvistor triodes. In the 6R1A it is two NPN transistors. | 7586 Nuvistor triodes. In the 6R1A it is two NPN transistors. | ||
* [http://bama.edebris.com/download/tek/6r1a/tek%206r1a.v6.pdf Tektronix 6R1A Manual (PDF)] | |||
<gallery> | <gallery> |