| Author | Message | ||
     Nikola Dulgiarov (Nikola) New member Username: Nikola Post Number: 2 Registered: 8-2005 |
I read an old book about radio-engineering and I want to ask is a trimer a variable capacitor? | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 735 Registered: 12-2004 |
A trimer is a chemical reaction product consisting of three identical molecules (called monomers). It is a very short polymer. You are probably thinking of a trimmer, a kind of variable capacitor used to trim, or fine-tune an oscillator or tuner. (Message edited by sfield on October 3, 2005) (Message edited by sfield on October 3, 2005) | ||
| Nikola Dulgiarov (Nikola) New member Username: Nikola Post Number: 3 Registered: 8-2005 |
Can I use it for the 10 minute radio? | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 737 Registered: 12-2004 |
Probably not. A trimmer capacitor by definition has a smaller range than a tuning capacitor. It is used for fine tuning, not coarse tuning. The Ten Minute Radio uses a 160 picofarad variable capacitor. If your capacitor has that range, then it will likely work, otherwise not. Bear in mind that you can get the whole kit for $8 in our catalog, so it is usually easiest just to get all the parts at the same time. | ||
| Nikola Dulgiarov (Nikola) Junior Member Username: Nikola Post Number: 4 Registered: 8-2005 |
I dont have a credit card. | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 739 Registered: 12-2004 |
But you probably know someone who has one. They are really easy to get these days. My friend's dog was sent an application once. | ||
| Nikola Dulgiarov (Nikola) Junior Member Username: Nikola Post Number: 6 Registered: 8-2005 |
Can I use a loudspeaker from a 32ohm headphones as a microphone? | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 747 Registered: 12-2004 |
With a proper amplifier, yes. Something like this will do nicely. | ||
| Nikola Dulgiarov (Nikola) Junior Member Username: Nikola Post Number: 7 Registered: 8-2005 |
Can I use the 1 watt amplifier. | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 748 Registered: 12-2004 |
The integrated circuit amplifier will do a better job. | ||
| Nikola Dulgiarov (Nikola) Junior Member Username: Nikola Post Number: 8 Registered: 8-2005 |
Could a solar cell froma calculator as a reciever in the laser comunicator. | ||
| Simon Quellen Field (Sfield) Senior Member Username: Sfield Post Number: 749 Registered: 12-2004 |
Connected to a piezoelectric earphone or an amplifier, yes. |
