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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

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Old 26th Sep 2019, 2:29 am   #1
qrpeter
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Default Heathkit HW16

Hi
Have just acquired the above transmitter/receiver, and it seems to work fine, have had a couple of QSO's with it. Problem is, it only gives about 40w power, when the spec for this rig says the input should be 40 - 90w. What could be the problem, maybe replace the final valve? Any suggestions appreciated.
Thanks
Peter G0JJI
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Old 26th Sep 2019, 11:27 am   #2
Keith
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Default Re: Heathkit HW16

Peter,

I think you'll find that this rig is from the days when power was defined as DC input to the PA valve. If the PA is a 6GE5 it has an anode dissipation of 17W so 40W out is about right.
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Old 27th Sep 2019, 1:35 am   #3
qrpeter
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Default Re: Heathkit HW16

Keith
Yes, you're right, had a chat with the "Elmers" at the club this evening, 40w out for an input of 90 is right. Thanks for the reply. Don't know if you have had any experience with this rig, but the audio seems a bit quiet, need 'phones for it. Maybe an addition of an AF amp would be good.
Peter
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