Hydroponics Online Store



Hydroponic Systems

Hydroponic Grow Lights & Bulbs

Hydroponic Tents & Grow Boxes

Hydroponic Ballasts

Grow Light Reflectors

Hydroponic Nutrients

Grow Media Rocks

Hydroponic Pumps

Hydroponic Pots

Hydroponic Books

Meters

Hydroponic Exhaust Fans

Hydroponic Seeds

Hydroponic Foggers

Home Store Blog Forums FAQs Lesson Plans Pictures


Search:



Commander HF-2500 Linear Amplifier - HAM Radio HF Amp For Sale


Commander HF-2500 Linear Amplifier - HAM Radio HF Amp



This item has been shown times.

Buy Now

Commander HF-2500 Linear Amplifier - HAM Radio HF Amp:
$2,025

I believe the HF-2500 Commander may be the longest in-production Ham Radio HF amplifier model utilizing indirectly heated cathode, metal-ceramic tubes. It has been on the market since 1990 and has developed a grand reputation over time as a reliable, compact, lightweight desktop legal limit++ powerhouse that doesn't break.Over the years I have heard many Hams on the air make casual comment that they were using a "Commander", when asked. In the 90s I learned that "Commander" was some sort of an established Ham Radio linear amplifier legend for power, reliability and quality. This unit has been used extremely lightly and is in near perfect condition.The current going price for this amplifier is well over $3,000, and it is considered "The Mother of Lightweight Legal Limit++ Ham Radio Linear Amplifiers." The original manual is included.

This amp is a class AB2 linear power amp, designed for operation on all amateur frequencies from 1.800 Mhz thru 21.450 Mhz. Two Eimac 3CX800A7 ceramic-metal triodes, configured in parallel grounded grid mode, allow for conservative legal limit operation at 1,500 watts. A pressurized forced air cool chassis, including the High Voltage Power Supply, insures cool operation with high duty cycle emission modes. The output circuit utilizes extra heavy duty component with reduced ratio vernier drives on all tuning controls. Easily accessed rear panel controls allow for operator adjustment of input VSWR and ALC. An automatic time delay circuit, a tube-life extending feature, insures proper cathode conditioning before RF drive can be applied. Protection resistors, located in both the high voltage B+ and B- circuit, protects the tubes in the event of an internal tube arc. Metering functions include plate voltage, plate current, and grid current.

Serial#: 362

This unit was used in my father's radio room, a smoke-free environment, and never moved. He babied all of his radio equipment, and kept it in tip-top shape. Heisno longer able to spend time with his radio equipment, and has given it to me to sell.

I plan to remove and ship the tubes and transformer separately. The instruction manual includes directions on how to re-install both of these appliances.

You can offer with confidence, I accept returns for a full refund within 7 days if you are not satisfied with this unit's quality.

Please contact me with any questions you may have!


Buy Now


 

Hydroponic Forum Discussions:

Can I use the same nutrients for lettuce and strawberrys?
••potassium silicate••
new here, questions. starting medium, seeds.
Help me finish this set up please.
Any Idea What This Is ? fungus or disease?
NFT Setup in Florida Keys
space and wattage ?
Hydroponic Lettuce Fertilizer 24-15-36
Setting up a Kratky system for Baby Greens and DWC for larger plants
organic hydro nutrients?
My Very First Setup
Can you water-stress hydroponic plants?
Newbie - want to produce fennel (Foeniculum vulgare) and ruta (Ruta graveolens)
35 day old system...
Thoughts on my setup?
Real Newbie Question
Heirloom Tomatoes Yummy Yummy
distance from light to plants
Flood an Drain Shedule for Beans
Prevent algae growth

Popular Hydroponic Items:


Filter Choke - Quantity One (1) *****price Reduced****** picture
Filter Choke - Quantity One (1) *****price Reduced******


Mirage B108 Ham 2m Radio Amplifier picture
Mirage B108 Ham 2m Radio Amplifier


Gray Electronics G-100  Bi Linear Ham Radio Amplifier Ssb-cw-am/fm picture
Gray Electronics G-100 Bi Linear Ham Radio Amplifier Ssb-cw-am/fm


Look  2 X 4 Look At This Amp Tubes Are True Nos  Look************* picture
Look 2 X 4 Look At This Amp Tubes Are True Nos Look*************


10 Meter Amplifier Brand New In The Box . Solid State For Ham Radio picture
10 Meter Amplifier Brand New In The Box . Solid State For Ham Radio


Davemade  200 Watts Base Station  2 Pill  120 Volt10 Metere  Amplifier picture
Davemade 200 Watts Base Station 2 Pill 120 Volt10 Metere Amplifier


Kenwood Tl-922/922a Safety Switch picture
Kenwood Tl-922/922a Safety Switch


Drake L4b picture
Drake L4b


Texas Star Dx 350 Hdv Amplifier picture
Texas Star Dx 350 Hdv Amplifier


Pcb Pa Unit For Hf Solid State Power Amplifier Dn-600 4x Mrf150 picture
Pcb Pa Unit For Hf Solid State Power Amplifier Dn-600 4x Mrf150