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 AMPHF - Ameritron ALS-600 Amplifier 
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Ameritron ALS-600 Amplifier. Rated 160-15M, 600 watts PEP, 400 watts CW. I do not believe this one has the 12-10M modification, but have not opened it to check (the AUX position is silent on receive, indicating that the mod has not been installed). Amp works and and appears to be operational, but sold as is. $925 net to me. Will ship at your cost, or pick-up in St. Louis, MO. US only. Lou, W0FK
- Listing #1753773 - Submitted on 12/26/25 by Callsign W0FK, Modified on 01/01/26 - IP: syn-071-085-210-083.res.spectrum.com
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 AMPHF - ALS-600 Amplifier
- Up for your consideration is this Ameritron Solid State ALS-600 600 watt P.E.P. amateur radio linear amplifier with accompanying ALS-600PS power supply. I have had this amplifier for several years and purchased it from the original owner. I dont need this in my new house, and have had a change in shack priorities, thus it is up for sale. It is a well-maintained unit producing the full output in good condition. This amplifier comes from a smoke-free environment The manual is available online. This is a heavy shipment because of the power supply coming in at 34 lbs or so, plus the amp itself. This will be shipped in two separate boxes. Price is $1000 plus actual shipping. The payment is to be made via check or pick-up. Should you have any questions at all, or to arrange for purchase, please ask.
Sorry, only shipping to the lower 48 states of the U.S.A. Thank you for looking!
- Listing #1754334 - Submitted on 01/01/26 by Callsign KG9H - IP: c-73-111-164-190.hsd1.il.comcast.net
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- BOOKMAG - F/S ALLIED/KNIGHT LITERATURE - PART 1
- All are original unless noted otherwise.All prices include mailing in the USA.
BUY 2 OR MORE AND TAKE 10% OFF THE SUM OF THE INDIVIDUAL PRICES.
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KG-221A/KG220 FM Monitor Receiver (copy) - $7
C-100 Citizens Band Transceiver (copy) - $7
Sky-Rover 3-way Portable Superhet - $7
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Star Roamer ( copy) - $8
Ocean Hopper - $10
A-2515 Man - $15
A-2515A Man, pages loose - $10
A-2516 Svc Man - $15
A-2517 Op Man - $15
A-2517/A2518 Svc Man (rough) - $10
A-2518 Speaker/Power Supply - $8
P2 SWR Pwr Meter - $8
R-55A Receiver (tape on spine) - $10
R-100A Assembly Manual - $13
R-100A manual pages loose - $10
R-195 Communications Receiver (no schematic or parts list) - $7
SPAN MASTER Assembly Manual - $12
- Listing #1749099 - Submitted on 11/10/25 by Callsign K3DUA, Modified on 01/01/26 - IP: pool-108-50-43-148.bltmmd.fios.verizon.net
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- BOOKMAG - F/S ALLIED/KNIGHT LITERATURE - PART 2
- All are original unless noter otherwise.All prices include mailing in the USA.
BUY 2 OR MORE AND TAKE 10% OFF THE SUM OF THE INDIVIDUAL PRICES.
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T-150 Man, rough - $15
TR-108 const and op mans - $15
V-107 VFO Man - $8
X-10 Calibrator Man - $8
50-watt transmitter Man- $10
Capacitor Checker Man - $10
Capacitor checker (copy) - $7
KG-652 sweep generator Man - $10
Voltage Calibrator Man - $8
Transistor and Diode Checker Man - $6
1000 ohm/volt VOM Man - $6
RF Z-Bridge Man - $6
Audio Gen Man - $8
G-30 Grid-Dip Meter Man - $8
KM-15 HiFi Amp Man - $8
KG-625 VTVM const and op man plus RF & HV Probe Man - $10
2508 Man - $6
C-577 Man - $6
Stereo Preamp Man rough- $8
Basic 60-watt Deluxe Stereo Amp man rough - $10
Space Spanner (W7FG COPY) - $12
T-175 6/10 Meter Amp, op & assembly man - $12
- Listing #1749098 - Submitted on 11/10/25 by Callsign K3DUA, Modified on 01/01/26 - IP: pool-108-50-43-148.bltmmd.fios.verizon.net
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- TUBES - EIMAC 4-400 AIR-SYSTEM SOCKETS - REDUCED
- MAKE AN OFFER
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I have available for sale 2 used EIMAC Air-System sockets. The tube sockets are tarnished, but in good physical condition. One for $45 shipped in the USA, or both for $80 shipped in the USA.
- Listing #1754331 - Submitted on 01/01/26 by Callsign K3DUA - IP: pool-108-50-43-148.bltmmd.fios.verizon.net
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- TEST - F/S BIRD SLUGS FOR LARGER LINE-SECTIONS
- All of these work with a 100uA meter. These elements may physically fit into a BIRD 43, but they WILL NOT WORK CORRECTLY.
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$75 each shipped.
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+FOR 1-5/8" LINE-SECTION+
"H" RANGE - 2-30 MHz
2.5KH1 - 2.5 Kw
10KH1 - 10 Kw
"A" RANGE - 25-60 MHz
2500A1 - 2.5 Kw
"B" RANGE - 50-125 MHz
250B1 - 250 w
1000B1 - 1 Kw
2500B1 - 2.5 Kw
10KB1 - 10 Kw
"C" RANGE - 100-250 MHz
500 C1 - 500 w
1000C1 - 1 Kw
2500C1 - 2.5 Kw
5000C1 - 5 Kw
"E" RANGE - 400-1000 MHz
250E1 - 250 w
500E1 - 500 w
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+FOR 3-1/8" LINE-SECTION+
"H" RANGE - 2-30 MHz
10KH3 - 10 Kw
"B" RANGE - 50-125 MHz
1000B3 - 1 Kw
2.5KB3 - 2.5 Kw
5000B3 - 5 Kw
10KB3 - 10 Kw
25KB3 - 25 Kw
"C" RANGE - 100-250 MHz
1000C3 - 1 Kw
2500C3 - 2.5 Kw
5000C3 - 5 w
10KC3 - 10 Kw
25KC3 - 25 Kw
"E" RANGE - 400-1000 MHz
2500E3 - 2.5 Kw
5000E3 - 5 Kw
10KE3 - 10 Kw
25KE3 - 25 Kw
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I also have the 100 uA BIRD meter for use with the larger line sections & these elements.
- Listing #1754330 - Submitted on 01/01/26 by Callsign K3DUA - IP: pool-108-50-43-148.bltmmd.fios.verizon.net
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- TEST - BIRD 2500 WATT DUMMY LOAD
- SALE PENDING - - WAITING PAYMENT.
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MAKE A REASONABLE OFFER - - MAKE A REASONABLE OFFER
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I have available for sale a BIRD 2500 watt dummy load, model 8890-300. This is rated at 2500 watts CONTINUOUS DUTY - - no time limit at 2500 watts. It currently has an N female connector on the load, but I can change that to a UHF(SO-239) or an HN or even an LC if you prefer. The load's SWR is under 1.1 at 1 GHz, and under 1.3 at 2.4 GHZ. It has the Shipping plug installed. The Breather plug is included, and attached to the Shipping plug with a short chain.
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My asking price is $1200 plus shipping, or I can deliver it to you at any local hamfest. This is very heavy, almost 60 pounds, so shipping will be expensive. I travel to many hamfests in the mid-Atlantic area, so delivery is possible to save the shipping cost.
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More pictures available.
- Listing #1754328 - Submitted on 01/01/26 by Callsign K3DUA - IP: pool-108-50-43-148.bltmmd.fios.verizon.net
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- RADIOHF - National NC-303 Ham Band Receiver
- Very good electrical and physical condition National NC-303 ham band receiver for sale. Asking $250 plus shipping. Email for pictures and please include your call and phone number. Cash or USPS money order accepted for payment.
- Listing #1746778 - Submitted on 10/19/25 by Callsign W4KR, Modified on 01/01/26 - IP: 164.153.62.87
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- RADIOVHF - Johnson 6N2 Transmitter & VFO
- E. F. Johnson 6N2 transmitter plus 6N2 VFO. Interconnect cables for Ranger included. Very good physical condition. This is an estate sale item. Asking $100 plus shipping. Email for pictures or questions.
- Listing #1752200 - Submitted on 12/09/25 by Callsign W4KR, Modified on 01/01/26 - IP: 164.153.62.87
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- TEST - Heathkit IM-28 VTVM
- Heathkit IM-28 VTVM. Was well wired and is fully functional. Cabinet and front panel is mark/dent free and in near new condition. Mounting bracket included. Asking $125 plus shipping. Email for pictures or with questions.
- Listing #1752199 - Submitted on 12/09/25 by Callsign W4KR, Modified on 01/01/26 - IP: 164.153.62.87
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