<p>Hi all!<br />
 I've finally made up my mind and am currently building a DL2 on a stripboard using the schematic on Casper's site. I found it easier to me to use the stripboard but its also somewhat tedious cause i have to transfer the schematic section by section for stripboard layout to avoid mistakes. But it's okay since there's no urge. So far the oscillators and the mixer sections are soldered on board and now i'm working on the filter\preamp section.<br />
And here is where the question shows up - Is there a way to add a resonance knob to the low pass filter? An easy one- like swapping a resistor with a pot?</p>
<p> Also regarding the band pass filters- what's the difference between them? I mean, what range does each BPF cover approximately? The reason i ask is that the controls are not supposed to be labeled so i have to represent the knobs' functions graphically on the face panel. Thus, i need a visual association of what each knob does.
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