[ARC5] unusual sounding key note from my BC-459
Thomas Scherer
w2kbw1520 at gmail.com
Sat Oct 1 14:12:44 EDT 2016
>
> Hi Dave,
> I recently build up a power supply for my BC-459 Transmitter.
> All voltages are ok and made most of the the required mods within.
> all nos tubes.
>
> The transmitter is producing abt 35 watts output with 600 volts on the plate.
> 300 vdc sg
> 215 vdc osc
> 24 vdc Fil Switching supply
> http://www.jameco.com/z/S-150-24-Mean-Well-AC-to-DC-Power-Supply-Single-Output-24-Volt-6-5-Amp-156-Watt_123450.html
>
> However when I key the transmitter, the note changes its tone severely.
>
> one of the obvious problems is the eye tube doesn’t open when the transmitter is tuned to the 8kc calib.crystal.
> ?? It may have nothing to do with the problem (perhaps a bad crystal)
> I Hope you can help with some suggestions...
>
> Thank you for your kind consideration.
>
> - - Tom w2kbw
> 716 - 725- 4038 Cell
>
>
>
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