[Milsurplus] RAK-7
Michael Bittner
mmab at cox.net
Sat Jul 23 18:09:39 EDT 2016
I've read on these lists that some RAK-7 owners are running them on 90 Volts B+ from batteries. I assume that, when this is done, the 90 Volts is connected to the 180-Volt input on the RAK and that the 90-Volt input is left floating. Is this correct?
Also, some have suggested simple AC power supplies for the RAK. I have a simple regulated power supply that can provide the 180 Volts. I'm assuming that its connection to the RAK's should be the same as for battery operation above - correct?
By adding up the RAK's plate and screen currents listed in the manual, I get 24 mA. Is this current about right for a small power supply substituting for the original monster power supply, or does it need to be more? None of the resistors and VR tube between 180 volts and 90 Volts in the original power supply will be in the circuit.
Mike, W6MAB
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