[ForSale-Swap] Active audio filters FS

[Ken Simpson, W8EK]

For Sale:

Autek QF-1 A Audio Filter
This is an audio filter that goes between your rig and speaker.
It runs off of 110 V AC, and will peak, notch, or become a low
pass or high pass filter.  Selectivity (bandwidth) and frequency
are adjustable from the front panel.  This is the "A" model that
also has an additional notch filter added. The input is an RCA
phono plug, and the output is a 1/4 inch jack on the rear panel.
This particular unit looks very nice, and works the same.  
With paper work for $ 45.

MFJ 720 "Deluxe Super CW Filter"
This is an audio CW filter, but it is fancier than most
of the MFJ CW filters.  Well, at least the cabinet is fancier.
The filter has an "off" position along with 180 hz, 110 hz,
or 80 hz positions on its rotary switch.  There is a 1/4 inch
phone jack on the front, with RCA jacks on the back for
both speaker and input.  There is also a 1/8 inch jack for
9 to 18 V DC to power it, so using your regular 13 V DC
supply should work just great.
The cabinet is one of the TenTec enclosures that matches
the Triton series of rigs.  It is wood grain and eggshell white.
Of course it will match many other rigs also.
This one is in really great shape.  I can not find a scratch on
it.   $40 

MFJ SBF-2, SSB filter
This filter is very similar to the MFJ CWF-2, except it is for
use on SSB.  It is an audio filter, and operates off of a 9 V
battery, or "wall wort" power supply.  It has audio in and
out jacks, and a headphone jack.  The selectivity is variable
with switch selections of 1.5 KHz, 2.0 KHz, 2.5 KHz, or
"high pass" mode.  If course there is also an on-off switch
that also bypasses the unit.  It is all in a nice little
enclosure, approximately 2 inches high, 3 1/4 inches 
wide, and 4 1/2 inches deep.
This one works fine, and looks great.
With paper work for $15.

Prices do not include shipping from Florida.

Thanks.

73,

Ken, W8EK

Ken Simpson
E-mail to W8EK at fdt.net or W8EK at arrl.net
Voice Phone  (352) 732-8400