whatpax.blogg.se - Table foiler magic cutter

Simple, easy and just enough power according my needs. I use this amplifier everyday and is by far the one i prefer.

A 600w Amplifier using 4 tubes (this amplifier was sold few months ago since i do not need such QRO Power).In the current webpage you will also some results with 2 other amplifiers using EL519 (6P45C) tubes. I am targeting about 100 up to 300w for my SDR and UBITX transceivers (5 to 20w output) but i really want to minimize the amplifier size.įrequency range from 80m up to 10m bands including WARC

This website is my main reference since it is a compilation from QST and ARRL Handbooks (A must to read) : Requirements About 80w up to 120w SSB Reference websites About 10w up to 50w FT8 and digital modes A great device performing really well all modes. 150w amplifier using a single tube –> this is my main amplifier, since all my TRX are low power (means less than 10watts), i use this amplifier on current basis. 600w amplifier using 4 tubes : this is a test amplifier and do no have it anymore. About 10w up to 100w FT8 and digital modes i use this amplifier mostly when propagation is poor. 300w amplifier using 2 tubes –> My QRO amplifier. On this webpage your will find a description for 3 amplifiers using E519 aka 6P45C tubes: I guess i should replace this webpage title with “ 6P45C 300w HF AMPLIFIER“ On the other hand, the 6P45C tube which is a beam powered TETRODE is a close cousin and will do the job. To be completely accurate, talking about EL519 nowadays is not relevant since this tube is really hard to find with a decent price. When people keep telling me without providing me factual evidence that a well design amplifier using EL519 or 6P45C tube is not performing…… Well well well i will find out by myself ! Most of the time they have never used this kind of tube and because it was used during the citizen band era, this kind of tube is definitly and obviously bad.Īs a amateur radio, the main challenge is sometimes to use something not design for one purpose and make it work for a design you are targetting.

The discharge stick still always connected to the anode for security purpose (At the end of the stick i made a little hook and each time i am working in the amplifier, my stick is ALWAYS hook to the tube anode)įor years now, some guys keep telling me : do not use EL519 or 6P45C tube, they are not good, they are not performing well, this kind of tube is for citizen band.

The use of discharge/grounding stick is MANDATORY in order to ensure all capacitors are discharged.Drop all jewelery from your neck or rings, bracelet from your hands and fingers.The amplifier should be unplug from the power supply.Tube/valve amplifiers are using high voltage “HV” as a reminder it can kill. 150W amplifier with one tube with N7DDC ATU display on the front panel With about 1.5w input, this tiny amplifier is providing about 50w output.