[ARC5] unusual sounding key note from my BC-459

[J Mcvey]

Some chirp is normal, but if you have too much there are a couple of causes off the top of my head.1) too much antenna coupling 
2) the HV power supply does have sufficient current for the power amps. I think you need at least 165ma for good stability.
 

    On Saturday, October 1, 2016 2:30 PM, Thomas Scherer <w2kbw1520 at gmail.com> wrote:
 

 
> 
> 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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