Re: Topband: Drake TR7 for sale from W3BH

2013-05-23 Thread Jim Sorenson
Sale of the TR7 is pending. Thanks Jim Sorenson W3BH On Thu, May 23, 2013 at 12:33 PM, Jim Sorenson wrote: > I'm selling my TR7 station. Details are as follows: > > Serial Number 4298 > PS7/FA-7/NB-7/AUX-7/MS-7/MN-75 (no B1000 balun) > SL-4000 > SL-6000 > SL-1800 > SL-500 > Also transmits and

Re: Topband: Drake TR7 for sale from W3BH

2013-05-23 Thread Jim Sorenson
Slight revision - I have sold off the MN75 separately. I'm selling my TR7 station. Details are as follows: Serial Number 4298 PS7/FA-7/NB-7/AUX-7/MS-7 SL-4000 SL-6000 SL-1800 SL-500 Also transmits and receives all WRAC bands Receives 0 - 500, but weakly as expected Original Blue Drake Manual labe

Topband: Drake TR7 for sale from W3BH

2013-05-23 Thread Jim Sorenson
I'm selling my TR7 station. Details are as follows: Serial Number 4298 PS7/FA-7/NB-7/AUX-7/MS-7/MN-75 (no B1000 balun) SL-4000 SL-6000 SL-1800 SL-500 Also transmits and receives all WRAC bands Receives 0 - 500, but weakly as expected Original Blue Drake Manual labeled "TR7A" Non-smoking Very light

Re: Topband: Ferrite Common Mode Chokes

2013-05-23 Thread Tom W8JI
I don't know what you are talking about Jim, are you talking about core internal resonance? If so, I'm not talking about that. Not quite.. A strong resistive component is present only around resonance, and the resonance of a single pass through a #31 or #43 core is in the range of 150 - 300 MH