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Amplifiers
Penta Labs RF Vacuum Tubes
Penta Laboratories was founded in 1951 and is a world-class manufacturer and distributor of a wide range of vacuum tubes for a variety of industries. Penta's commitment to excellence begins with design and follows each product all the way through distribution. Penta Labs matched vacuum tubes go through rigorous test procedures to enhance performance during their operation. Each Penta Labs vacuum tube is burned in for a minimum of 48 hours dissipating full power with filament, plate and screen voltages that are normally used in amplifier applications. All of this ensures that the various electrical parameters have stabilized and the matching of each vacuum tube will not drift during its lifetime. Penta Labs power tubes are matched within a 5% variation on all parameters. This is a process of eliminating tubes that test with bad values, rejecting those outside limits of design. Each passing vacuum tube is then tested on a fleet of WT-100A original RCA production testers for plate current, screen current and transconductance (gm). We also check for grid current and leakage between elements. When you receive single and matched vacuum tubes from Penta Labs, you can rest assured that you are receiving a product that has been thoroughly tested and will perform at levels unsurpassed in the industry. DX Engineering offers a selection of Penta Labs single and matched sets of RF vacuum tubes and ceramic vacuum tubes for your electronics project or repair. Order yours today!
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$1,049.99
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$1,499.99
RM ITALY BLA350 Plus HF Linear Amplifiers
RM ITALY BLA350 Plus HF Linear Amplifiers are compact and fully automatic with up to 300 watts output at less than 12 watts input on all Amateur bands from 160 through 10 meters. These amplifiers include fast hardware protection circuits to protect the power transistors in the event of a high SWR condition on the antenna feedline. Two 50Vdc MACOM MRF150 RF Power FETs in Class AB push-pull configuration is automatically or manually switched to one of six low pass filters that provide over 50dB harmonic suppression. The built-in 800VA power supply functions on input house current at either 110 to 120 Vac or 207 to 244 Vac. Therefore two versions of the amplifier are available, RMY-BLA350P-120 or RMY-BLA350P-240, which include the appropriate fuses and AC power cord. The BLA350 Plus may be used on all narrow band modes of transmission including SSB, CW, AM, FM, RTTY, FT8 and so on, using reduced power (25% of PEP) for AM and digital modes. Internally a dual microprocessor controls a variable speed cooling system. On the front panel is a large, attractively illuminated analog output power meter. Plus, the two-line 16 character LCD display shows amplifier operating parameters including frequency, filter selection and PA temperature. This display also enhances quick navigation of the amplifier's menu system. Appropriate operations for this amplifier are on HF antenna systems with SWR below 1.5:1. Additional specifications and documentation appear on the product detail pages. PLEASE NOTE: This amplifier is intended to be used with a low power (QRP) transceiver that is capable of an RF output of approximately 10 watts maximum. DO NOT USE this amplifier with radios that are capable of 100 watts output. Even when output power is turned down, many 100 watt transceivers send out an instantaneous high power RF pulse that will blow out the Solid State final transistors of this amplifier. Damage to final transistors due to RF pulse and overdrive is NOT COVERED UNDER WARRANTY. It is the owner's responsibility to use this amplifier properly, with a low power radio that cannot accidently damage the amplifier. Cost of repair of amplifiers with blown finals will be charged to the customer or will be deducted from the refund of returned amplifiers with blown finals. Ideal for QRP and low power transceivers and weighing less than 30 lbs., RM ITALY BLA350 Plus HF Linear Amplifiers are easy to use and will provide many years of excellent performance for your Amateur station.
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$1,215.99
ACOM RCU-TFT Remote Control Units
ACOM RCU-TFT Remote Control Units are the same remote control included with each ACOM 2000 amplifier. It's unlikely that you would ever need to replace one, but if you do, DX Engineering has them available. With ACOM 2000 amplifiers, only the remote control unit needs to be placed near the operator. The amplifier may be installed up to 3 meters (10 feet) away. RCU features include: Amplifier status shown on the LCD display, control of all amplifier functions, measuring and/or monitoring of the 20 most important amplifier parameters, on-board technical assistance, troubleshooting suggestions, a record of power-on hours and these RCUs are password capable. It you've acquired a used ACOM 2000, or lightning took out your existing RCU, then you need one of these ACOM RCU-TFT Remote Control Units from DX Engineering.
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$1,075.99
ACOM RCU-R05 2020S Remote Control Units
ACOM RCU-R05 Remote Control Units are the same as included with each ACOM 2000 amplifier. It's unlikely that you would ever need to replace one, but if you do, DX Engineering has them available. RCU-R05 features include: Amplifier status shown on the LCD display, control of all amplifier functions, measuring and/or monitoring of the 20 most important amplifier parameters, on-board technical assistance, troubleshooting suggestions, a record of power-on hours and RCUs are password capable.
Not Yet Reviewed
$1,219.99