It should also be pointed out that these are also known as a "fox" and "hound" set.
Jay Urish CCNA Network Engineer ----- Original Message ----- From: skipp025 [mailto:[EMAIL PROTECTED] To: [email protected] Sent: Wed, 03 Jan 2007 18:28:09 -0600 Subject: [Repeater-Builder] Re: Mini Audio Amplifier time... rf sniffer > > Some of you Telco guys know what a "banana" is... a tone sniffer > that works right through wire insulation to id phone pairs > (typical) with a tone generator "wobbler" on one end. > > It's pretty much an lm-386 type circuit in some models with a high > gain voltage probe sniffer circuit on the front end. In many cases > the voltage probe sniffer circuit is just a fet stage. > > It hears almost anything close range... so you don't have to > buy the Opto Electronics Near-field Receiver. Save your money for > an extra Dayton Braut... > > cheers, > s. > > > DCFluX <[EMAIL PROTECTED]> wrote: > > > > Point of order: > > > > Depending on the make and design of your amplifier, Make sure the > > input to the LM-386 is not left 'floating'. Other wise the amp makes > > one of the nicest broad-band AM recievers you can get. > > > > A 10K pull low resistor is all it takes. Also a 470pF capacitor > > to ground will help in high RF enviroments. > > > > >
