Jack.Straw
Member
Hello. I'm wanting to convert an old telephone to a microphone. I found this schematic online, but have a couple questions. First, there seems to be what looks like a diode going between the terminals on the speaker:
**broken link removed**
Should i leave that in place?
Also, i'm not sure the component values are correct. I tested my speaker and it has a resistance of 155 ohms. Does this schematic look correct? I want it wired so that power is turned on when the jack is plugged in. Here is my schematic so far:
**broken link removed**
Does that look right?
Thanks for your time,
-Scott
**broken link removed**
Should i leave that in place?
Also, i'm not sure the component values are correct. I tested my speaker and it has a resistance of 155 ohms. Does this schematic look correct? I want it wired so that power is turned on when the jack is plugged in. Here is my schematic so far:
**broken link removed**
Does that look right?
Thanks for your time,
-Scott