Can someone recommend an IC to use as a wide band amplifier in RF signal tracer? I need an amplification stage between the probe and the audio amp. I would need something in the range of 455 kHz to at least 110 Mhz.

Thanks,
Bill Shamblin

<snip>

 

Hello,

You could try some MMIC's.

Here is an overview for the MMIC's:
MMICs
Here is a datasheet for the MAR6.
Mar6 datasheet

Greetings,
Bertus

PS remove you e-mail adress, spambots will find it and start to spam you.

 

Can someone recommend an IC to use as a wide band amplifier in RF signal tracer? I need an amplification stage between the probe and the audio amp. I would need something in the range of 455 kHz to at least 110 Mhz.

Thanks,
Bill Shamblin

<snip>

Here's a top secret trick for signal tracers. (Shhh...don't tell anyone!) The typical R.F. detector probe uses a germanium diode for the detector...you need about a quarter of a volt for this to conduct, so it's not all that sensitive. If you use a Schottkey (hot carrier) diode for the probe, there is NO forward voltage drop...and it is MUCH more sensitive. This alone could make your additional preamp unnecessary.

eric

 

Thanks Bertus and KL7AJ. That sounds like a great idea about using the Schottkey. I will try it out.

Thanks,
Bill Shamblin

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