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 Super Stable Power supply unit 350W output DC12V 29A US $55.20 
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 PYRAMID PHASE III PS-4 PS4 REGULATED POWER SUPPLY 13.8V US $23.77
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 Tripp Lite PR-3 Dc Power Supply PR-3A PR3A 13.8V US $20.49
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 SKS-100-24 Power supply unit 24V 4.5A 100W US $39.00
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 SKS-60-12 Power supply unit 60W 12V 5A US $32.50
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 SKS-50-5 Power supply unit 5V 10A 50w US $33.70
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 SKS-201-24 Power supply unit 24V 8.3A US $45.50
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 SKS-350-24 Power supply unit 24V 14.6A US $46.60
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 SKS-35-12 Power supply unit 12V 3.0A 35W US $23.00
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 SKS-15-5 Power supply unit 5V 3.0A 15w US $28.20
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 SKS-145-5 Power supply unit 5V 25A 145W US $41.20
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 VOLGEN 5V POWER SUPPLY SX154-05S 5VDC 3AMP POWER SUPPLY US $24.00
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 SKS-15-24 Power supply unit 24V 0.7A 15W US $28.40
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 MFJ 25 Amp MightyLite Switching power supply mfj-4125 US $100.00
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 SKS-35-24 Power supply unit 24V 1.5A US $24.10
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 Motorola TPN11454 A Power Supply, 14.1 V, 8A cont, 14A Int US $.99
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 RCA Power Supply n1S4347 US $.99
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 HP Agilent 63315E Modular Triple Output DC Power Supply 5V; 0-18A; + OR -15V US $299.99
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 Kenwood PS-53 14V & 22Amp power supply US $99.00
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 Agilent M2607A Bias T w/ Power Supply - NEW US $19.00
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 yaesu fp-1023 power supply US $120.00
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 DC Power Supply Adj. Volts 9.5 Up To 15 VDC 36A for HAM or CB Radios 03 US $73.00
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 DC Power Supply Adj. Volts 9.5 Up To 15 VDC 33A 03 US $62.00
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![76-108Mhz Home FM TRANSMITTER+ Antenna+Power Supply [CZH-05B]- (silver)](http://www.innovaxradio.com/images/plus/extra28Z795398680_0143.jpg) 76-108Mhz Home FM TRANSMITTER+ Antenna+Power Supply [CZH-05B]- (silver) US $58.00
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 LAMBDA LM D120 REGULATED POWER SUPPLY 120V DC 1.5A AMP LINEAR 105-132V 51303 US $9.01
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 400 Watt Voltage Range 9.5 to15.5 VDC 36 Amp HAM and CB Radio Power Supply 13.8V US $64.00
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 JOHNSON PPL 6000 UHF TRANSCEIVER and an NPC regulated power supply model LR 10 US $150.00
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 HD 6 Volt PSM Power Supply Standard Power Inc Acme US $10.00
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 Motorola Walkie Talkie Charger NTN1171A for Motorola Radio's w/Power Supply. K1 US $24.99
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 iCom BC-144, BC-144N Radio Charger for F11, F21, F30, F4GS & Power Supply US $10.00
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 ASTRON 50 AMP POWER SUPPLY VS-50M US $179.99
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 *For Parts* TTi Thurlby Thandar EX354D 35V 4A 280W Dual Output Power Supply US $49.95
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 TRANSMITTER/ POWER SUPPLY SOFT START SOFTSTART US $55.00
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 MFJ-4245MV DELUXE ADJUSTABLE SWITCHING POWER SUPPLY NEW IN BOX MIGHTY LITE US $86.05
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 ELECTRO model N Hi-Current DC power supply w/ 0 - 125 VAC VARIAC US $125.00
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 USED BUT GOOD 4 AMP AUDIOVOX POWER SUPPLY WORKS GREAT NO HUMMING LOOK LOOK US $1.25
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 HEATHKIT HP-23B DUAL VOLTAGE POWER SUPPLY HIGH HW SB 101 100 TRANSCEIVER NR US $63.00
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 20 AMP ASTRON RS-20A POWER SUPPLY HAM, CB RADIO US $99.99
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 Motorola Radius M120 VHF 2 CH 45 W Mobile Radio w/ Astron RS-20A power supply US $190.00
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 Power Supply Board Kit, PCB, Based on LM317T and LM337T US $23.99
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 HENRY RADIO TEMPO ONE AMATEUR RADIO HF TRANSCEIVER - NEEDS POWER SUPPLY US $61.00
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 Pyramid 10 Amp Regulated Power Supply PS-12K US $45.00
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 REGULATED POWER SUPPLY - 10 AMP - Tripp Lite - Model PR-10 US $9.99
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 BIG 30 KV, 5 MA DC HIGH VOLTAGE POWER SUPPLY These sell for $2050 New! US $165.00
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 Vintage Heathkit Ham Radio DC Power Supply HP-23 WORKS US $154.99
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 Pyramid PS52KX 50 Amp Power Supply US $110.00
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 DRESSEN-BARNES 30-12 REGULATED POWER SUPPLY . US $45.00
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 DRESSEN-BARNES 20-4 REGULATED POWER SUPPLY . US $45.00
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 0-10W fm transmitter radio station+power supply+antenna US $205.00
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 33 Amp 12 Volt 13.8V Regulated Radio Power Supply 12V US $58.00
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 Lambda LXS-C-12-R 13.8 AC / DC Switching Power Supply: US $69.00
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 Lambda LXs-B-12-R 13.8 AC / DC Switching Power Supply: US $69.00
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 Kenwood TS-950SDX small power supply board X43 B/6 US $20.00
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 Kenwood TS-950SDX power supply capacitors+board X43 C/6 US $20.00
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 Thunderbolt 10mhz GPS Power Supply VSF30-DD +12V-12V+5V US $19.99
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 charger with adaptor power supply original for Baofeng UV-5R dualband radio US $17.90
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 9V~15V adj (13.8V Fixed) Power Supply 30A max for Ham Radio US $139.00
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 Deltron Regulated Power Supply ~ CB or Tube Ham Radio ~ # A6 -3.8 ~ S/N 26928 US $28.00
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 MOTOROLA SWITCHMODE POWER SUPPLY MOBILE RADIO PSU 13.8V 6Amps 138W GPN6145A US $29.95
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 PYRAMID REGULATED POWER SUPPLY MODEL:PS-15KX US $65.00
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 Vintage Triplet Power Supply Model: 420 US $54.00
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 Power Supply Power One 3E28993C000 27V/50A 1500W 1.5KW US $349.99
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 Vintage Tenna Model PS-412E 12 Volt Power Supply - 120 Volt - 60 Watts - USA US $9.99
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 Power Supply 10-Amp 13.8-Volt Pyramid converts 120 V AC to 12 13.8 V DC #PS12KX US $65.00
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 MEAN WELL 24V 35W S-35 Single Output Switching Power Supply US $22.60
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 HARRIS RF-350K RT-1446/URC COMPLETE POWER SUPPLY UNIT US $300.00
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 Yaesu FP-30 power supply for FT-897D US $150.00
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 Topward 60V DC Power Supply US $70.00
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 Schematics for PCR500L power supply US $30.00
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 Service manual for PAN-A series power supply US $30.00
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 MARTEK PF-85-21 AC-DC POWER SUPPLY HI GRADE (STORAGETEK) guarantee/warranty L@@K US $68.00
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 Yaesu FP 757 HD Power Supply for Parts or Repair only US $27.00
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 Service manual for PCR500 AC POWER SUPPLY US $50.00
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 Genuine Motorola Rapid Charger & Power Supply for HT750/1250, GP328/340 HTN9000 US $24.90
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 Astron RS-50A 12 volt DC 50 amp Power Supply Power Transformer US $199.99
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 ******* VINTAGE MICRONOTA 1.75 AMP POWER SUPPLY******* US $13.00
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 Tempo One/Yaesu FT 200 HAM RADIO TRANSCEIVER WORKS POWER SUPPLY MANUAL CORD US $132.50
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 Swanson A 2052 3 Power Supply for SSB Ham Radio BIG and HEAVY!! Swan US $59.00
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 Kenwood PS-30 Power Supply US $75.00
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 Motorola Quantar Power Supply w/ Battery Backup Model # CPN1048 US $102.50
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 Kenwood TS-440 Radio with PS-50 power supply and Heil GM-5 Microphone US $450.00
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 Vintage Ten-Tec 252 Mo Power Supply Ham Radio!!!! US $49.99
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 MICRONTA REGULATED 12 VOLT POWER SUPPLY US $9.99
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 MICRANTA 12 VOLT REGULATED POWER SUPPLY US $9.99
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 Vintage Ten-Tec 262G Power Supply Ham Radio!!!! US $49.99
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 NEW QJE PS50SWIII 50 Amp Switching Power Supply with Volt/Amp Meter US $169.95
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 6v power supply class 2 transformer Radio Shack US $7.49
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 us power power supply 120 / 230v input dc outputs 95w +30v @ 3.0a +5v @ 1a US $10.00
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 Diamond GZV4000 40 Amp Power Supply Ham Amateur Amplifier Transceiver Radio US $58.57
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 Drake PS-7 PS7 Power Supply Ham Radio TR7 TR-7 TR-7A TR7A TR-5 US $99.99
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 Motorola base station power supply TPN 1136A US $28.00
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 HAM and CB Radio Power Supply DC 9.5 to 15.5 VDC 36A 04 US $73.00
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 Power Supply DC 9.5 to 15.5 VDC 350 Watt 04 US $62.00
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 NEW PYRAMID PS-14KX 12 AMP VOLT REGULATED POWER SUPPLY US $62.95
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 HEATHKIT HP- 23B POWER SUPPLY US $66.00
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 VINTAGE ACOPIAN UNREGULATED POWER SUPPLY MODEL U16Y1000 2-1/2A USED UNTESTED US $55.00
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Power Supplies
CEILING FAN ALTERNATOR AC to DC Power Supply Converter
Choosing the Right Dc Power Supply for Your Application
The DC Power Supply is a rather fundamental electronic device, however there are hundreds of DC Power Supply products on the market from dozen of manufacturers. Narrowing down the best product for your application and budget can be a daunting task. This article addresses DC Power Supply differentiators, functions and the applications they are best suited for. The article's focus is DC Power Supplies used by engineers, manufacturers, quality professionals and electronic hobbyists for the purposes of R&D, manufacturing and testing.
Power Supplies can range in price from $50 to $20,000 and the cost is often directly proportional to the amount of power the device outputs. The primary function of a power supply is to regulate output voltage and current. It takes an input power and regulates the output power as to enforce a constant voltage and current. In the case of DC Power Supplies, the input power is converted from alternating current (AC) to direct current (DC). There are two basic types of regulated DC Power Supplies: Linear and Switching.
Linear power supplies can never output a higher voltage than the input source. In theory, a linear power supply that is driven by typical 110V wall outlet could only output 110V, assuming the device were 100% efficient. Realistically, no power supply is 100% efficient because power conversion always results in energy loss, usually in the form of heat dissipation. Therefore, linear power supplies usually output voltage that is significantly less than the input.
Switching power supplies can step-up, step-down or invert the input voltage. Switching power supplies are usually larger, noisier and more expensive than their linear counterparts, however, switching power supplies are typically more efficient.
Choosing the right DC power supply for your application requires definition of some basic design specifications: voltage range, current range, number of outputs, power cleanliness (known as "ripple") and programmability. In general, the higher the output voltage and the lower the ripple, the more expensive the DC Power Supply. Multiple outputs and programmability features will also add to the cost.
The least expensive DC Power Supplies are ideal for electronics hobbyists and basic electro-mechanical applications where only raw power is required. It is likely that the devices being powered in these applications already have power-conditioning features that eliminate the need for precision input power. Low power, single output, DC power supplies range in price from $50 to $200.
Mid-range power supplies are best suited for non-critical, laboratory projects involving more advanced electro-mechanical applications or basic board-level testing. Mid-range power supplies might have multiple outputs, higher power ratings, lower ripple and precision, digital metering (+/- .001V, +/- .01A). Mid-range DC power supplies can be linear or switching and could range in price from $200 to $1,000.
High-end applications requiring high output voltage, advanced programmability (GPIB PC Interfaces), numerous outputs and very low ripple should budget in excess of $1,000 for their DC power supply. Many laboratory, R&D and testing applications could easily spend $5,000 to $10,000 per power supply.
This article has introduced some basic features and applications of DC Power Supplies. Before making your final purchase, be sure to consult the manufacturer and thoroughly understand all the specifications of a particular product. Choosing the best and most economical DC Power Supply for your application does not have to be a complex and time-consuming task. By identifying your design parameters, you will quickly narrow down product selection to a niche class of products from only a few manufacturers.
About the Author
Robert Preville is the President and CEO of Global Test Supply, LLC, a distributor of test and measurement equipment, and welcomes question from those looking for a DC Power Supply
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