Hi All,

Does anyone know of some SPDT toggle switches that have a very low
capacitance between unconnected contacts? I tried a bunch of regular
miniature and subminiature toggle switches and they all seem to have about
2 pF between the pole and contact when not connected. Since,in my
application, the switch needs to isolate a high-gain amplifier with 1Meg
ohm || 20pF input, 2pF is not insignificant,and is resulting in only about
10 times attenuation,instead of isolation.

In case you are curious, yes, the circuit contains a PIC16C84,and it is the
frequency counter section of my all-in-one bench tool project which is
finally complete except for this switch!

Thanks,

Sean



|
| Sean Breheny
| Amateur Radio Callsign: KA3YXM
| Electrical Engineering Student
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