Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with electronics
Search options answers only
not deleted
user 11132
Questions which involve the properties or applications of individual electronic components.
4
votes
Accepted
How to properly simulate a crystal filter being pulled?
OP's model is close to a 100 kHz crystal. These old crystals were once used as frequency calibration sources in an oscillator. I cannot recall seeing these used as a filter. The ratio of parallel-to-s …
- 1,219
5
votes
Accepted
What are the electrical properties and connectors of a CW key?
Is a key simply a normally open SPST push button switch?
Yes - if you're thinking of a simple hand-operated key.
Does one end need to be connected to ground? (I believe that is the common usage - i …
- 1,219
4
votes
How to reduce VFO sensitivity to the hand capacitance?
Circuit looks OK.
Note that the highest impedance point in this circuit is near the box open end. RF voltage here is highest in this oscillator, and is susceptible to coupling out the top.
A shield li …
- 1,219
1
vote
Serial Inductors in Tuned Circuit - Elenco AM780K AM Radio Kit
That ferrite-rod coil likely is a component adapted by ELENCO for this circuit, but was originally intended for superhet-style transistor AM radios. I can't imagine that ELENCO would really want the t …
- 1,219
0
votes
what are the alternatives to LM387 and SA602AN?
You may find the SA612 chip more readily available than SA602. I believe the SA602 is an identical chip with slightly tighter specs than SA612. SA612 is pin-compatible replacement.
As for the LM387 ( …
- 1,219