Legal limit heat sink and copper heat spreader module
LINEAR DUAL LDMOS POWER AMPLIFIER ON A COPPER HEAT SPREADER AND EXCELLENT HEAT SINK. This module is designed for two LDMOS-FET's operating in a push-pull circuit. A Variety of RF LDMOS-FET'S can be mounted on the board. If BLF188XR are used, devices are operated at 1/2 of their rated power output thus. Having a great headroom and fantastic gain (22-24db) and much better IMD figures. When 2 devices operate at reduced output heat removal is easier and thermal design is far more efficient. These boards are the result of a long R&D into. LDMOS FET high power linear amplifiers. Less than 5w in will produce over 1000W output! I have revised my design to improve matching and IMD figures. The board features a high power transmission line transformers wound on stacked ferrite toroids. For lower IMD, lower saturation. And higher power output the board employs special quality coax yielding highly efficient impedance transformation.
All critical RF capacitors are ATC for best rf performance. I will supply all details upon request.Thermal tracking of bias is also provided on board. This is a populated module but without the active LDMOS devices. The board is supplied ready for your devices to be dropped in. A thermal cutout fuse is also mounted for over temp protection. The board has enough "headroom" to cover up most minor operating mistakes. The LDMOS devices with the "XR" are Extremely rugged devices!! The amplifiers have very good IMD since the devices are designed to loaf along at the designed power level. They are not pushed to the limit or to saturation! I was asked a few questions by members so here is my added reply. Amps are made for 160-6m. Slight trade off to set the right balance in power/bandwidth so there is. About 10% drop on 6. Duty cycle is very good and with proper cooling of forced air it will do full duty cycle! Cores are large and many thus an. Average rise of core temperature is also controlled As a result I have not.
Seen core failure or saturation and far away from curie point. A good power supply that can be used with my amps or boards can be found.Please verify your address during checkout. We are not responsible for any wrong or undeliverable addresses. Items will be checked carefully before sent out. Thank you and 73's. The item "Legal limit heat sink and copper heat spreader module" is in sale since Tuesday, October 17, 2017. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Amplifiers". The seller is "4z4rb" and is located in Nitzanay-Oz.
This item can be shipped worldwide.
- Brand: Unbranded/Generic
- Model: 1500rb3
- Max. Output Power: 1500W
- Frequency Band(s): HF
- Supported Modes: AM
- MPN: Does Not Apply
- Amplifier Class: AB1
- Country/Region of Manufacture: Israel