Product Description
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Home Construction Project for the Radio Amateur
• All parts supplied.
• Boost QRP to 100W level
• All HF Bands 160-10M
• Small Size, Light Weight
• Auto Band Switching
• CW SSB Digital Modes
• Comprehensive Construction Manual
This amp is version 2 with additional features and ease of fabrication. The display, in addition to the LCD screen features real-time LED bar graphs of power out and SWR. The filter band and other status are also indicated. The one button approach is very easy and intuitive to operate. The amp monitors: voltage, current, temperature, band, power in, power out, SWR, Gain. Band changing is automatic. A programmable input drive attenuator kicks in when over-driven or high SWR in the AUTO mode. You can program the attenuator to be IN continuous for reduced drive situations. Modes are: CW, SSB, Digital, Continuous duty. Computer controlled fan to cool the copper heat sink mounted RF transistors. Derived from a 140W Motorola RF Amplifier application note. Two years in development and now a second version. Participate with other builders to make this smart tiny amplifier. Boost your QRP to 100W. A comprehensive construction manual is supplied on CD.
Dimensions (inch) Overall: 6.5 Deep x 7.0 Width x 2.8 High
• Weight (lbs): 3
• DC Power: 13.8 VDC 20A max. Reverse-Polarity Protection; Power Pole rear-mounted connector. ON/OFF switch.
• Filters: Auto selection: 160-10 meters; Sized for 100W operation
• Control: Shaft Encoder, 1x16 LCD back-lit display
• Input Drive: 1-5W; Overdrive protection
• Monitoring: In power, out power, SWR, Temperature, Voltage, Frequency, LED Bar Graph of Power, SWR, Filter Selection and other operational status.
• Adjustments: VOX; PTT
• Indicators: LED: Power, TX, Overdrive
• Duty Cycle: Continuous; Computer Controlled, Internal fan
• Spurious Products: -40 dB or better @ 100 watts
• RF Control: RF Sensing or PTT T-R Relay
• Modes: SSB, CW, PSK
• Power Transistors: MRF-454 type matched pair (subject to type change based on availability of transistors)
• Circuitry: Class AB, Push Pull
• Construction: Precision fabricated vented Aluminum enclosure, Black anodized Panels, Silkscreen rear panel, lexan overlay front panel. Supplied with all circuit boards and parts. Construction manual on CD.
We have great web site and personal email support to help you have a positive build experience.
We graduate first-time builders. Each unit is serialized. Reserve your low serial number and position in the delivery queue today.
You can sign up with an email to vstamps@comcast.net. We need your call sign and delivery address. Delivery schedule based on order of payment received.