Point of order: Depending on the make and design of your amplifier, Make sure the input to the LM-386 is not left 'floating'. Other wise the amp makes one of the nicest broad-band AM recievers you can get.
A 10K pull low resistor is all it takes. Also a 470pF capacitor to ground will help in high RF enviroments. On 1/3/07, skipp025 <[EMAIL PROTECTED]> wrote: > I'm real glad to see a number of you already know about the Mini > Amplifier. > > Just for the sake of trivia.. > > There are at least three versions of the Mini Amplifier all being > the same basic animal. One of the first versions used the lm-386 > with a transistor stage in front. The diagram for the circuit was > on a paper label inside the case (very nice) and it was slightly > larger than the current Mini Amplifier. Working from memory I > believe it doesn't need a blocking capacitor in that model. > > The current Shack version is part number 277-1008 although I also > have a version with the 1008c suffix. > > > "Adam T. Cately" <[EMAIL PROTECTED]> wrote: > > I wish I could mount mine into my line test meter... > > Also know that Turkey Shaft (aka Radio Shack) sells or sold > what you would call the same type amplifier pc board in kit > form (some years back). I haven't looked to see if they still > sell the kit but you can find mini audio amplifier kits using > the LM-386 and a number of other devices. Check with Marlin P > Jones, Jameco and KitsRus for those type of items. It wouldn't > be much to mount a mini amplifier into a lot of small places. > > [paste] > > Sits on the lab bench ready to amplify as long as the 9 VDC > > battery is good. Well worth every penny! > > Ralph W4XE > > Can't seem to find my "Battery Club Card" anymore... Now I've > got to remember to shut the power off or else. > > s. > > > > > > > Yahoo! Groups Links > > > >
