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 MISC - Mechanical Filters for Collins 75A4 FS 
Mechanical Filters for Collins 75A4
For Sale:
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I have a pair of Collins mechanical
filters that were used in a Collins
75A4 receiver. They have been tested,
and both work well. These plug into
the 9 pin socket behind the front panel
of the 75A4. It is quite likely that
they can be used in other receivers as
well.
-
300 Hz filter for narrow CW
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9000 Hz for AM
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Each filter is $195. Buy both of them
for $375.
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Prices do not include shipping from Florida.
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Thanks. 73,
Ken Simpson, W8EK
Voice Phone (352) 732-8400
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- Listing #1766940 - Submitted on 05/03/26 by Callsign W8EK - IP: customer.mmmiflx1.isp.starlink.com
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- RADIOHF - Elecraft P3 Panadapter # 140
- Elecraft P3 Panadapter - Works great with cables # 140
$549 delivered - check, Zelle, PP FF ok.
This is a very nice P3
Comes with standard k3 hookup cables, and manual.
If you need the special cable for a k3s,I have those in another listing.
I have a matching K3 in another listing.
Very Good condition..
I use one of these every day,and this one is not needed in my shack.
These have been discontinued at Elecraft.
Comes with cables for a k3.
This can also be used with a non Elecraft radio,and you may need to make up special cables.
I also have another P3 with VGA that will list ASAP.
Please see pictures for more details.
Local pickup is also fine.
I can be reached through email if you have questions about this unit.
Larry K6RO
- Listing #1766939 - Submitted on 05/03/26 by Callsign K6RO, Web Site: http://www.K6RO.com - IP: 99.37.37.86
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 ROTATORS - HYGAIN ROTOR LOWER MAST ADAPTER
- This adapter, HyGain P/N 5030500, fits any of the Ham type rotors and attaches to the bottom of the rotor with four 1.25 inches stainless bolts. (provided). It needs the clamp plate kit which includes two u-bolts and the plate.(not provide) to complete the clamp assembly. $30 shipped. I take PayPal, Postal MO and check
- Listing #1764596 - Submitted on 04/10/26 by Callsign W6XI, Modified on 05/03/26 - IP: ip68-109-162-111.ph.ph.cox.net
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- ROTATORS - CDE HAM-M ROTOR CONTROL
- This rotor control will work with all the Ham series rotors. It has been tested and works fine. The case housing has some markings from many years of use. The meter works as it should and the Zero pot works smoothly. $35 shipped. I take PayPal, Postal MO and check.
- Listing #1764600 - Submitted on 04/10/26 by Callsign W6XI, Modified on 05/03/26 - IP: ip68-109-162-111.ph.ph.cox.net
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- ANTHF - CSJ-61192 Standoff Insulator
- These Antenna insulators are originally used on WWII aircraft antennas but now are sold in surplus stores. They are Glazed Ceramic, 4¼” Long, X1/2” Diameter. Hole spacing center to center is 3”. Hole diameter is 1/8”. They make great end insulators for Dipole antennas or line spacers. Surplus stores sell them for $9 each. $5 ea plus shipping. I take Paypal, Post MO and check.
- Listing #1764607 - Submitted on 04/10/26 by Callsign W6XI, Modified on 05/03/26 - IP: ip68-109-162-111.ph.ph.cox.net
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- ANTHF - MOSLEY S 402M DRIVEN ELEMENT INDUCTOR
- This inductor was redesigned and used on the S402 and S403, driven element, with great success. It is a balanced input to the antenna rather than the unbalanced, original inductor.
The unit will need to be sealed up before placing it out doors in the elements. The seal caps are available at most hardware stores that deal with PVC pipe. $40 Shipped. I take PayPal, PMO and check.
- Listing #1764604 - Submitted on 04/10/26 by Callsign W6XI, Modified on 05/03/26 - IP: ip68-109-162-111.ph.ph.cox.net
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- MISC - PJ-068 COLLINS AND DRAKE AUDIO PLUGS
- Two of the three plugs are used but still very functional. Solder lugs on two units are still attached. No solder lugs on one unit just needs to be hard wired with the screw still attached. $15ea shipped. I take Paypal, PMO and check.
- Listing #1764601 - Submitted on 04/10/26 by Callsign W6XI, Modified on 05/03/26 - IP: ip68-109-162-111.ph.ph.cox.net
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- ROTATORS - HYGAIN ROTOR LOWER MAST ADAPTER
- This adapter, HyGain P/N 5030500, fits any of the Ham type rotors and attaches to the bottom of the rotor with four 1.25 inches stainless bolts. (provided). It needs the clamp plate kit which includes two u-bolts and the plate.(not provide) to complete the clamp assembly. The two U-Bolt holes at the top of the unit, shown, are slightly larger than the stock U-Bolt holes by approximately 1/8 inch. This should not affect the strength of the assembly. $30 shipped. I take PayPal, Postal MO and check
- Listing #1764598 - Submitted on 04/10/26 by Callsign W6XI, Modified on 05/03/26 - IP: ip68-109-162-111.ph.ph.cox.net
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- TEST - FS: Mini1300 Antenna Analyzer
- Upgraded Mini1300 Antenna Analyzer
0.1Mhz~1300MHz
4.3" touchscreen display
SMA Calibration Kits
Vector Network Analyzer
Multitester
Portable
Aluminum Shell
Asking $150. including shipping to standard US addresses.
- Listing #1766934 - Submitted on 05/03/26 by Callsign KD4E - IP: 168.182.104.187
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- MISC - NATIONAL RADIO CERAMIC COIL FORM
- This heavy ceramic coil form is 2. 5 inches in diameter and is 5 inches long it has groves for 25 turns and has 22 turns of solid copper installed on it. The diameter of the windings is 2.25 inches. The form also has four holes for mounting hardware. $39 shipped. I take Paypal, Postal MO and check
- Listing #1764145 - Submitted on 04/05/26 by Callsign W6XI, Modified on 05/03/26 - IP: ip68-109-162-111.ph.ph.cox.net
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