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:

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
Nutrient Recipe for Strawberries?
Spinach Seed Germination
Hydroponic Spinach
precipitation problem
Anyone try those automation products?
Heirloom Tomatoes in Rockwool - My first setup
Beginner troubles
Hydroponics System Care and Maintenance
Hydroponics System Care and Maintenance
Hydroponics in the winter

Popular Hydroponic Items:


Vintage 1961 Heathkit Hd-11 Q Multiplier Ham Radio Shortwave Assembly Manual picture
Vintage 1961 Heathkit Hd-11 Q Multiplier Ham Radio Shortwave Assembly Manual


Avantek Msa-0304 Mmic Amplifiers - 4 Each picture
Avantek Msa-0304 Mmic Amplifiers - 4 Each


Eimac Tube 8165/4-65a picture
Eimac Tube 8165/4-65a


Workman Ps35 Power Supply picture
Workman Ps35 Power Supply


Ham Tower picture
Ham Tower


Extra Class Flash And Pass Study Cards - Amateur Ham Radio License Test Prep picture
Extra Class Flash And Pass Study Cards - Amateur Ham Radio License Test Prep


Gallon Of Oil For Heathkit Cantenna, Dummy Load, Termaline, Mfj, Bird picture
Gallon Of Oil For Heathkit Cantenna, Dummy Load, Termaline, Mfj, Bird


Palomar Tx75 Broad Band 3-30mhz Solid State Bi-linear Amplifier picture
Palomar Tx75 Broad Band 3-30mhz Solid State Bi-linear Amplifier


Fatboy 10 Meter Amplifier picture
Fatboy 10 Meter Amplifier


M.a. Electronics Low Noise Amplifier Lna - Ham Radio picture
M.a. Electronics Low Noise Amplifier Lna - Ham Radio