Collectable Low Pass TVI Filter FS
Ken Simpson, W8EK
W8EK at SPEAKEASY.NET
Sun Dec 4 08:06:53 EST 2005
Bud LF-601 Low Pass Filter
This low pass filter can be used on either 50 or 75 ohms systems.
It is adjustable for impedance and attenuation frequency. There are
a total of 5 adjustments on it. It will handle a full 1000 Watts of AM,
which means over 3000 watts of SSB. It is in a gray hammertone
metal enclosure about 13 inches long, by 2 1/2 inches square.
This particular unit has never been used. I would say it is new, but
that would probably not be proper for a unit that it at least 40 years
old -- maybe 50 years. It was made before zip codes! It is still in
its box, with the original paper work and also a package of mounting
hardware. There is even "$5.00" written on the box; we all know
how long it would have been since it would have sold for $5 !
Enjoy this piece of history, and even put it to work cleaning up
any TVI you might have, for $60.
Other TVI filters for sale:
Low Pass filters for the transmitter:
Drake TV-1000-LP Low pass filter
This is the filter that is in the copper case, and may also
be used on the low end of six meters, as well as HF. It is
a 50 ohm filter and is good for 1000 W AM below 30 MHz
(which would be over 3000 Watts PEP SSB), and
about 200 W up to 52 MHz. With paper work for $ 30
Drake TV-3300-LP Low Pass Filter
This is a modern low pass filter to go between your
transmitter and antenna, and has been optimized to
have more attenuation in the 40 MHz region, where
many TVs have their IF. It is good for 1000 Watts
"average" according to the manual, and has over
80 db attenuation at 41 MHz. SO-239 connectors
on each end. This one looks close to new, and also
has the single page "manual" with it. $ 30
Drake TV-5240-LP low pass filter
This number is correct; it is not a TV-5200. This filter is
different than the typical low pass filter. It has an SO-239
connector on each end, but instead of being long and skinny,
the enclosure is about 5 inches square. I think this is a
fairly old filter. It has brownish/gray paint over the copper
colored case. I have not been able to find any specs on
this filter. It does say "For use in 52 ohm line of transmitters
operating below 30 Mc." printed on it. $30
Johnson Nye Viking 250-20 Low Pass Filter
This is a 52 ohm cylindrical low pass filter with a cut
off frequency of 45 MHz and 75 db of attenuation.
It is rated to take 1000 Watts of AM, or 5000 Watts
PEP SSB. It has SO-239 connectors on each end.
Nye Viking Low Pass Filter Model 020-001
Eliminate the harmonics going out your feed line,
and reduce TVI. It is rated at 2000 watts, with
over 65 db of attenuation above 57 MHz.
This one is in very nice shape for $30.
Drake TV-100-LP low pass filter
This is for lower power -- up to 100 watts AM.
It has the copper case. It is approaching antique status,
as I would guess it must be 30 years old, but still works
fine. Basically it is the same as the TV-1000-LP above,
but with one tenth of the power ratings. $ 15
Alinco ELP-60 D LX low pass filter
For 50 ohm systems, with up to 500 watts of power.
This one has an SO-239 on one end, and about a 2 foot
Length of coax and PL-259 on the other end. $30
Ameco LN-2 low pass filter
This filter is rated at 100 Watts, with an SO-239
connector on each end. $12
For the TV receiver:
High Pass filter for the TV for 300 ohm twin lead.
This filter is collectable, and is unused as best I can
determine. It is still in its original box (not the newer
blister pack), with an "RLD" logo on it, and says
"NEW TV-300 HP High Pass Filter, Attenuates
0-52 MHz". A grounding strap is also attached.
Prices do not include shipping from Florida.
E-mail to W8EK at speakeasy.net or W8EK at arrl.net
Voice Phone (352) 732-8400
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