[Fox_Tango] FL 101

[Ron]

Just a first suggestion would be to hang a meter on the screen and grid bias
supply at the dc supply source to see if these voltages are caving in. Then
check the filament voltage.
---
Ron


Kenneth Crips wrote:

> I have an FL101 transmitter which I have a problem I hope someone
> else out has had.  This unit has fresh 6JS6C's and a good driver.
> The problem is with the RF output. After tuning it up the output
> is about 120 watts dive give or take 5-10 watts depending on the band,
> and how hard I drive the finals, I normally hold it down to 100 watts.
> 35 watts CW and AM phone.  The problem is power fade.  When I first key
> the transmitter I have full output over a period of about five minutes
> the power drops back to about 12 watts which is the level the driver
> is exciting the finals.  When I unkey and wait for a few minutes it
> will return to a higher output about 80 or so watts.  This time when I
> key the transmitter the power drops off to about 12 watt over a period of
> several seconds.  Keep in mind The FL101 is a separate transmitter it's
> output section is identical to the FT-101 series. Any Ideas what might be
> wrong?
>
>                          Ken de W7ITC
>
> Kenneth Crips
> Amateur Radio Station W7ITC AMI-877
> Ten-Tec Argosy 525, TS-520SE, Heathkit SB200,
> R388/URR, R390A/URR, SBA-1, Gonset G64, HQ-129X,
> SP600-JX17, Hallicrafter SX101A, BC-312N.
>
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