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Re: Kilovac relay in MFJ 2020 catalog.
Good? point.? All? my? 1/2? dozen? opto? ssr's? are? 200 Vdc? @? 1A......(ODC-3A).? ? ?The? ODC-3 is? rated? at? 60? dvc? @? 3A? ccs.? (both? have? 4 kv? AC? isolation).?
By Jim VE7RF · #37157 ·
Re: Kilovac relay in MFJ 2020 catalog.
I use the red Opto 22 SSR in my YC156 and a friend is using it in a GS35B amp to switch around the cut off resistor. I got a truck load of them for nothing, years ago, so I thought I might as well use
By Alek Petkovic · #37156 ·
Kilovac relay in MFJ 2020 catalog.
Page 76? ?in? the? 2020? MFJ? catalog. A. 408-8100, $19.95.? ? Kilovac S05FJA238, DPST-NO, contact form 2A.? 5kV rating between contacts, current is 10A DC or 5A RF, 12 VDC coil voltage and
By Jim VE7RF · #37155 ·
Re: Electrolytic Caps.
I? bought? the? Vishay? resistors? at? Mouser. Jim? VE7RF
By Jim VE7RF · #37154 ·
Re: Electrolytic Caps.
<Carl Feb 15 #37150 ( /g/ham-amplifiers/message/37150 ) <BUT only 85C rated, that could be rough when using a high ripple doubler HV PS. ##? 120? hz? ripple? current? into?
By Jim VE7RF · #37153 ·
Re: Electrolytic Caps.
Thanks for that info, I'll order some and run them as a 500V cap with some safety margin. Carl
By Carl · #37152 ·
Re: Electrolytic Caps.
Derated for 105C = 600 X .91 = 546V Voltage derating (0.91VR) enables 105¡ãC operation BUT only 85C rated, that could be rough when using a high ripple doubler HV PS.
By Roy Talbert · #37151 ·
Re: Electrolytic Caps.
BUT only 85C rated, that could be rough when using a high ripple doubler HV PS.
By Carl · #37150 ·
Re: Tokyo Hy Power HL-45B question.
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
By Omni · #37149 ·
Electrolytic Caps.
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.
By Roy Talbert · #37148 ·
Tokyo Hy Power HL-45B question.
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
By Terry ONeill · #37147 ·
Re: Fl2100z feedback
Yeah! It's the first 6dB that makes all the difference. 73, Alek. VK6APK
By Alek Petkovic · #37146 ·
Fl2100z feedback
Linear fine and running directly off the orion 2 as was suggested.? Dx pouring in.? Seriously.? Even at500 watts Very happy. -- David G4YVM
By David Perry <bumbledp@...> · #37145 ·
Re: fl2100Z misery...
Fault lies in the rf hot line.? When the operate relay is switched to operate the rf line goes open circuit
By David Perry <bumbledp@...> · #37144 ·
fl2100Z misery...
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
By David Perry <bumbledp@...> · #37143 ·
Re: fl2100z / Tentec Orion 2
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
By Alek Petkovic · #37142 ·
Re: fl2100z / Tentec Orion 2
autotransformer is the solution.
By W2XJ <w2xj@...> · #37141 ·
Re: fl2100z / Tentec Orion 2
By W7WRX · #37140 ·
Re: fl2100z / Tentec Orion 2
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
By Alek Petkovic · #37139 ·
Re: fl2100z / Tentec Orion 2
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
By Chuck Miller · #37138 ·