Yep, planning to simply switch the Pos lead from a battery holder. Even finding pots with any switch is becoming difficult and already gave up on that one. Now it's all encoders (with push switch) and digipot chips.There is no need to switch the battery negative connection. Also, a DPST switch on the back of a pot is very rare. S1 can be SPST.
Interesting idea. What values would you suggest for the components?Consider replacing R1 with a fixed resistor and trimpot in series. This lets you adjust the static current through the output transistors to prevent excessive power dissipation.
Depends on what part values you have or can get. Since someone thinks 180 ohms is a good value, a starting point could be 150 ohms fixed plus a 50 ohm pot. Or 120 or 130 ohms fixed and a 100 ohm pot.Interesting idea. What values would you suggest for the components?
Mine didn't !A "crystal radio" needs an audio amplifier with a very high input resistance
Well I have a dead zone to the east (Atlantic ocean) closest AM radio station to the south is ~30 miles, ~60 miles to the north and west. I live in a bit of a dead zone as most have gone to FM.A crystal radio was used 95 or 100 years ago when there was only one or two radio stations in your area. Today a crystal radio will probably pickup a few or more local stations at The Same Time!
Yes, it should be. I'll protoboard what I have tomorrow and see how it goes. My ultimate goal is a modular radio. Still have to wind the coil for the crystal and then work on a MK484 module. No hurry, piece by piece...Your speaker might be 8 ohms.
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