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:



Heathkit SB-201 Ham Radio Linear Amplifier Transmitter or Transceiver Excellent For Sale


Heathkit SB-201 Ham Radio Linear Amplifier  Transmitter or Transceiver Excellent



This item has been shown 0 times.

Buy Now

Heathkit SB-201 Ham Radio Linear Amplifier Transmitter or Transceiver Excellent:
$430

Used Heathkit SB-201 Amplifier is just what you need to be heard through those pile-ups.  The first 500watts is the most important ... that's why these Heathkit Amps are so popular even today.  This one was well cared for and still does a nice job.  The modern radios require a little interface box to protect the internal switching ICs from too much current in the switching relay but those can be had for about $25 to $50 bucks depending on where you get them. I have no manual for this amp but they are often available on .   The 572B tubes look new and the DC voltage on the HV meter position reads about 2400 volts which is normal for these amps.   This amp will be well packed for survival and shipped to your QTH.  UPS Shipping is FREE in CONUS.  Other methods at your expense.  This Amp covers 80 40 20 and 15 meters. Thanks for looking.  

On Oct-24-11 at 08:41:01 PDT, seller added the following information:

I put the SB-201 on the bench this morning and checked its performance... this is what I measured thru my watt-meter into a Dummy Load: 80 meter band ...3.840 Mhz with 70 watts in ... key down ... 500 Watts out measuring with my MFJ-986 tuner's built in watt-meter. (not a lab instrument) 40 meter band ...7.172 Mhz with 70 watts in ... key down ... 500 Watts out     "             "     "      "             "        "   "    "        "   20 meter band .14.226 Mhz with 70 watts in ... key down ... 420 Watts out      "            "     "      "             "        "   "    "        "  15 meter band .21.310 Mhz with 70 watts in ... key down ... 300.Watts out      "            "     "      "             "        "   "    "        " On 40 Meters ... I talked to a couple of stations on LSB and got reports of 5 9 with good quality audio from both when I requested a critical report as I was testing a  Amp.   

On Oct-24-11 at 10:13:48 PDT, seller added the following information:

Remember... that under CW key down conditions the power supply DC output voltage drops quite a lot... when using SSB voice peaks of current do not pull the voltage down near so much so the power input and power output peaks will be quite a bit more... usually you can figure 150 to 200 watts more on SSB peaks than you will get with key down...   confusing enough for most... ha ha... so my guess is that this amp may put out about 600 to  650 on peaks in SSB mode with most voice types on 80 and 40 meters and maybe 450 peak on the higher bands... thats my guess..   Thanks for your interest.  

On Oct-25-11 at 11:24:19 PDT, seller added the following information:

Oct 25, 2011 ... Last night I checked into a 40 meter net with this amp in-line instead of my usual amp which is a SB-221 Heathkit.  I made several contacts and the reports and comments were all good and about the same as if I was using my SB-221.   Probably because I run about the same power even when I could be running more.  Everything worked smooth and as it should.  A great little amp.  Good luck in the offers.  


Buy Now


 

Hydroponic Forum Discussions:

DWC buckets, root slime and root rot a constant issue, what can I do???
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
Nutrient Recipe for Strawberries?
Spinach Seed Germination
Hydroponic Spinach

Popular Hydroponic Items:


Eimac Sk-300a Sk300a 300 Tube Socket 4cx5000a 4cx15000a 4cx10000d Harris Collins picture
Eimac Sk-300a Sk300a 300 Tube Socket 4cx5000a 4cx15000a 4cx10000d Harris Collins


10 Meter Linear Amplifier ( Xforce 12 Pill ) picture
10 Meter Linear Amplifier ( Xforce 12 Pill )


Bmk 10 Meter High Drive Amp New 4 2879 picture
Bmk 10 Meter High Drive Amp New 4 2879


10 Meter Radio Linear Amplifier picture
10 Meter Radio Linear Amplifier


Dentron Gla 1000 High Voltage Filter Capacitor Kit picture
Dentron Gla 1000 High Voltage Filter Capacitor Kit


Yaesu Fl-2000/fldx-2000 Hf Linear Amp. Hv Capacitor Kit picture
Yaesu Fl-2000/fldx-2000 Hf Linear Amp. Hv Capacitor Kit


Navy Issued Rf Amplifier 300 Watts Output, Power Supply Not Included picture
Navy Issued Rf Amplifier 300 Watts Output, Power Supply Not Included


Kit Lpf Unit Using Low-pass Filter 1000w Pep, Have A Swr Meter Circuit picture
Kit Lpf Unit Using Low-pass Filter 1000w Pep, Have A Swr Meter Circuit


Radioshack Pro 2052 Not Working  picture
Radioshack Pro 2052 Not Working


Hp 34531b Dc-8ghz Rf Switch 28v picture
Hp 34531b Dc-8ghz Rf Switch 28v