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Derated for 105C = 600 X .91 = 546V Voltage derating (0.91VR) enables 105°C operation BUT only 85C rated, that could be rough when using a high ripple doubler HV PS.

BUT only 85C rated, that could be rough when using a high ripple doubler HV PS.

Assuming that the amp is functional, are you sure you that you don’t have it in standby or that it is being keyed properly by the radio. You don’t need ALC when then amp is driven with almost any

For those who might be building or considering a HV power supply, Newark currently has a promotional price on 600V 270uF caps that appears to be a bargain.

I recently acquired a Tokyo Hypower HL-45B in excellent cosmetic condition. I do not have a Yaesu FT817 and attempted to drive the amp with another qrp rig @ 5 watts with no alc cable between the amp

Yeah! It's the first 6dB that makes all the difference. 73, Alek. VK6APK

Linear fine and running directly off the orion 2 as was suggested.? Dx pouring in.? Seriously.? Even at500 watts Very happy. -- David G4YVM

Fault lies in the rf hot line.? When the operate relay is switched to operate the rf line goes open circuit

Oh woe is me. I have been using the linear with my Tentec Orion quite happily, manually switching the relay not via the rig nor leaving it permanently shorted as when I found it. ?I have been running

Yes. That is a great solution. I have a 5kVA unit with 10V taps from -40V to +20V compared to the incoming mains. I use it on my AL-1500 and HF-2500 amps. I run them on 230V and they are very happy

autotransformer is the solution.

The biggest single issue in this country (Australia) with the 2100 amps and a lot of others, for that matter, is the filament voltage. Due to our 240V to 250V mains, it is always high. With the 2100

Make sure the Orion cam tolerate the keyline voltage of the fl2100z. Not sure, but you may need a buffer to protect the radio. 73, N0NC Chuck

I have a 2100B to use with the FT 101 station.? I take it to the cabin and use it on all bands. Typically run it at 500 out. Never had a single issue with it ever. Its possible it was worked on at

I? had a brand? new? FL-2100B? back? in 1976.? ?Worked? on? all? bands...? for a while. Then? on? 10M,? it? flat? out? would? not? tune? properly on? 10M..into a flat? swr. The?

FL2100B (not Z, but quite similar) with FT-450, at the club Regards Guillermo - LU5WE.

Anyone using a fl200z with anything...?

Ive been very kindly loaned a 2100Z to try with my Orion 2. Anything I should be aware of before I hit the "smoke on" button? David G4YVM

Cliff,? the? link? for? the? ameritron? site? does? not? work? for? the AL1200? manual? (nor? the? AL-1500,? under? downloads). The 2nd? link? works....? but? not sharp,?