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Title: LNFB switch? what is it? Post by: Harry_Spider on January 28, 2012, 11:35:35 PM Greetings! I have an HRM 50w OTS, purchased from eBay some months back, great amp.
I just discovered a switch on the bottom of the amp, between the preamp tubes, facing downward. It's not on the back, but on the bottom, below where the overdrive and preamp switches are located. Never noticed it before. It has a label stuck on, like someone added it, and this switch is NOT on the photos on Nik's webpage, nor is it mentioned in the manual. The label reads LNFB. What might this be? -Rf Title: Re: LNFB switch? what is it? Post by: Harry_Spider on January 28, 2012, 11:42:52 PM Negative feedback... found a thread... reading now... :-)
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