MFJ-1315X - POWER SUPPLY WITH TRANSFORMER FROM 220V AC TO 12V DC - LINEAR TECHNOLOGY - 500 mA CURRENT 

- 220V SIDE: FREE TERMINALS

- 12V SIDE: DC PLUG with 2.1 mm. HOLE

MICROSET - LT-190 - POWER SUPPLY FOR HEAVY LOADS - VOLTAGE ADJUSTABLE: 5-15V - CURRENT ADJUSTABLE: 24-90A 

MICROSET - TOP-T 25 - HIGH QUALITY 13.5V 25A SWITCHING POWER SUPPLY - COMPACT, EFFICIENT, WITHOUT NOISY FANS

MICROSET - PC 30D - LINEAR POWER SUPPLY - VOLTAGE ADJUSTABLE FROM 5 TO 15V - MAX. CURRENT 30A - E.M.I. FREE

MICROSET - CS 35A - LINEAR POWER SUPPLY - ADJUSTABLE FROM 0 TO 15V - CURRENT MAX. 3,5-4A - WITH ANALOG VOLTMETER

PROXEL - AV-825-DPZ - DIGITAL POWER SUPPLY ADJUSTABLE FROM 0.5 TO 27.9 VOLT - MAX. CURRENT 20A @ 13.8V

A power supply with double digital instrument Volt / Ampere (resolution 0.01V and 0.01A), continuously adjustable from about 0.5 to 27.9 VOLT, with low ripple (less than 9mV p-p under load).

Input: 200-240V AC (internally switchable 90-125V AC for other countries)

The CURRENT supply varies according to the voltage, according to the following scheme:

5A max. at 6V
20A max. at 13.8V
15A max. at 20V
8A max. at 25V

This power supply is therefore very interesting for those who want to use it in its many possible uses in the laboratory, both for those who want to pair it with two-way radios, including powerful HF (check the maximum required transmission current on the radio's manual to be sure of be able to use it even at maximum power).
It is of the switching type, with excellent cooling thanks also to the small fan placed on the top of the power supply, and it employs a component scheme widely tested in many versions.

PROTECTION:
- Against short circuit, overload, over-voltage and two stages of protection against excessive overheating.

Dimensions: 165 x 147 x 55 mm.
Weight: 1.2 kg.

OTHER DATA IN THE DOWNLOADABLE INSTRUCTIONS AS PRODUCT SHEET

ZETAGI - KB13 - POWER SUPPLY / BATTERY BACKUP COMBINER - LETS BATTERY TO BE CHARGED AND OBTAINS POWER FROM IT WHEN THE MAINS IS DOWN 

MICROSET-PCS 140- ADJUSTABLE VOLTAGE POWER SUPPLY: FROM 4 TO 15V - CURRENT: 40A - INTERFERENCE FREE

RM ITALY - SPS1050S - SWITCHING TYPE POWER SUPPLY - DOUBLE INSTRUMENT V/A - VARIABLE OUTPUT 9-15 VOLT - CURRENT 50-55 A

TECHNICAL SPECIFICATIONS

• 230 / 240V power supply
• Power consumption 980 VA
• Output voltage 9-15V
• Maximum load 55 A
• Continuous load 50 A
• Residual ripple 50 mV
• Dimensions 185x113x285 mm
• Weight 2.9 kg

R.F. SYSTEMS - DX 500/ADAP - 220V A.C. TO 12V D.C. ADAPTER/POWER SUPPLY - LINEAR TYPE WITH PROTECTIONS

The 12 volts supply voltage for the DX 500 active antenna or other other ham radio antennas and accessories must be hum and
noisefree for optimum reception. 

With 12 V battery supply this is no problem, especially because all indoor units have built-in filters to reject hum and noise. 

But if a 12 V mains adapter is used, this filtering is sometimes not enough.

The mains adapter must deliver not more than 13,8 Volts dc, free from hum and noise.

Most low-cost unstabilized 12 V mains adapters give a higher output voltage with low current consumption.
They give also too much hum. It is an advantage if the power supply rejects also interference from the 230 V mains. 
Switching mode wallsocket mains adapters cannot be used with communications equipment! 
They give too much interference.
The DX 500/ADAP is a special stabilised, short-circuitproof mains adapter for the use of the 12 Volts DX 500 indoorunits on the
230 V ac mains. 
The DX 500/ADAP rejects interference from the mains, is double insulated and suited for continuous operation. 

• Input 210 – 240 Vac 50/60 Hz via a standard European 2 prong IEC mainsplug
• Output stabilized at 12 V dc, 300 mA max 
• Hum and noise rejection more than 70 dB. 

The output cord ends in a standard 2,1 x 5,5 mm plug which will fit directly to the DC input jack of the 12 V indoor units.