This is an old transmitter from the early nineties. The part is the white block with the screw through it. I'm assuming it's a capacitor of some sort, but other than that I don't know much. I don't have a meter to test capacitance with, which is why I'm asking for help identifying it. Furthermore, if the part can be identified, is there something I could replace it with to make more minute adjustments to the broadcast frequency? 
\$\begingroup\$
\$\endgroup\$
4
-
2\$\begingroup\$ This is an old-style trimmer capacitor - I don't think that style is available these days, but current styles could be substituted. Maximum capacity is probably under 50 pF. \$\endgroup\$– Peter BennettCommented Nov 24, 2015 at 0:05
-
\$\begingroup\$ Comments are not for extended discussion; this conversation has been moved to chat. \$\endgroup\$– Nick AlexeevCommented Nov 24, 2015 at 0:19
-
11\$\begingroup\$ Identification Of Parts Is On Topic! \$\endgroup\$– PasserbyCommented Nov 24, 2015 at 0:30
-
\$\begingroup\$ From ops description: The part is the white block with the screw through it. \$\endgroup\$– PasserbyCommented Nov 24, 2015 at 2:16
Add a comment
|
2 Answers
\$\begingroup\$
\$\endgroup\$
It's a Arco brand Type/Series 46 Mica Compression Trimmer Capacitor. This body style is "vintage" compared to modern day trimmer capacitor.
The value is between 5 and 80 pF. Some sites say 5 to 50pF, data sheet says 462 is 10 to 80pF.
Any trimmer capacitor of similar values can be used. Ideally, one with a shaft and large turn radius for better turning/tuning.
\$\begingroup\$
\$\endgroup\$
It's a trimmer capacitor -- likely 2-25 pF or smaller.
