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HF Amplifiers

Displaying ads 191 to 200 of 310 ads in this category.
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 FS: 3KV 10uF Oil Capacitor
3KV 10uF Oil Capacitor. Fairly compact. $59 + shipping.

Listing #1684233 - Submitted on 04/23/24 by Callsign N8FVJ, Modified on 05/17/24 - IP: fl-67-235-169-153.dhcp.embarqhsd.net
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 FS: Johnson Desk Kilowatt Transformer  
For sale is plate transformer for Johnson Desk Kilowatt … T300 … EFJ PN 22.1070 … Pri} 115/230 Vac 60Hz 1Ph … Sec} 2900-2325-0-2325-2900 Vac at 600 Ma CCS … good shape for vintage … see picture … ceramic insulators OK … original paint … no shell dents … ohmmeter & Biddle test OK … no evidence of over-heat … made in U.S.A. … heavy iron > 70 lbs … price is
$150 pick-up near Asbury Park, NJ … tnx., Gene


Listing #1687052 - Submitted on 05/16/24 by Callsign KB2GZ - IP: 104.28.215.136
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 Ten tec centrion 1200 watt Amp  
I have a very good shape ten tec centurion amp that does full power. I also have a 6 month old automatic antenna tuner that goes outside MFJ 998rt I will let both go for $2,300.00 local pickup only.
Thanks


Listing #1687012 - Submitted on 05/16/24 by Callsign KD8YVC - IP: 172.59.32.115
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 FS: ENI 500LA RF Power Amplifier  
Like NEW, have two ENI 500LA RF Power Amplifier, 27dB, 1.5-520MHzThe 500LA is a 520 MHz 3 Watt RF Amplifier from ENI. Amplify RF and Microwave signals to measure, test, and design circuits. Applications include radio communications, cellphones, EMI testing, and much more. Frequency Range: 1.5 MHz to 520 MHz. 27 dB gain (nominal)Works into any load impedance 50 Ohm impedance BNC(f) connectors, input/output 120/240 VAC. Asking $275 each plus shipping.


Listing #1681844 - Submitted on 04/05/24 by Callsign W1JCW, Modified on 05/16/24 - IP: 23-92-13-217.wirestar.net.wirestar.net
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 FS: New Mini Circuits ZHL-32A+   
New 50 Ohm Mini Circuits Laboratory Model ZHL-32A AMPLIFIER. Medium high power 29dBm min, high IP3, +38dBm typ .05 to 130MHz HF/VHF. Asking $100 plus shipping. Have a few of these and will make a deal on more than one. https://www.minicircuits.com/pdfs/ZHL-32A+.pdf


Listing #1681833 - Submitted on 04/05/24 by Callsign W1JCW, Modified on 05/16/24 - IP: 23-92-13-217.wirestar.net.wirestar.net
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 AMERITRON AL-1200 AMP EIMAC TUBE DAHL TR  
Excellent looking AMERITRON AL-1200 160-15 METER AMPLIFIER with EIMAC 3CX1200A7 TUBE and PETER DAHL TRANSFORMER. Serial No. 435. I'm selling for the estate of an SK friend. When tested output was about 1000 Watts with 50 Watts drive on 15 meters. The transformer and tube have been removed before the amplifier was put in storage so I could move it.
PRICE: $1600. or near offer. For pick-up at Greer, SC. Sorry, NO shipping. LOTS MORE PHOTOS - BOTH INSIDE AND OUT - JUST ASK.
JON
K1VVC


Listing #1676052 - Submitted on 02/20/24 by Callsign K1VVC, Modified on 05/15/24 - IP: 096-033-065-204.res.spectrum.com
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 Want: Ameritron Bandswitch Al-82
Looking for a replacement bandswitch for the Ameritron AL – 82, AL – 1200 and AL – 1500.
What say? Thanks, Terry W6RU


Listing #1686838 - Submitted on 05/14/24 by Callsign W6RU - IP: 151.66-126-40.atginternet.com
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 WTB Plate cap from Henry 2KD-5  
See Pic. I need a couple of plate caps for 3-500z tubes like used in the Henry 2KD-5 amp. 2 1/2 cm in dia. 1 cm tall/thick. The max thickness I need is 1 cm for clearance inside the amp. Any help appreciated. Thanks!

Listing #1686710 - Submitted on 05/13/24 by Callsign N0JA, Modified on 05/14/24 - IP: 172.59.106.83
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 Amp International LK-450-ZC  
Amp International LK450-ZC, tube is good, amp has a bad switch somewhere. Unable to locate.
Part of my Dad's SK estate.
Amp has one 3-500z and puts out 800-1000 on 10-160.
Price $700, prefer local pickup. Paypal is ok.
Cheers and 73!


Listing #1686775 - Submitted on 05/13/24 by Callsign N0VV - IP: 165.225.36.172
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 Ameritron 811H plus NIB replacement tube
Ameritron 811H amplifier. Amp output is low, around 300-400 watts (depending on the band). Price of $550 includes a replacement set of 4 new-in-box 811 tubes (from DX Engineering). The amp is used...but not trashed. No big scratches on the case, and inside looks reasonable. Pictures available, questions welcomed. Not interested in shipping the amp/tubes, but will be glad to bring along to Hamvention. Otherwise, prefer a local sale.

Listing #1686508 - Submitted on 05/11/24 by Callsign W5VS, Modified on 05/13/24 - IP: c-174-179-175-95.hsd1.va.comcast.net
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