>
>My TL-922 is not American version I believe (NOT TL-922A).
>
>1. The band switch has 1.8, 3.5, 7, 14, 21, 28 and all band is working in
>the stock form. The problem I noticed is on the 3,5 Mhz. While the the
>phone band is 3.8 Mhz, I tuned the the AMP to work on 3.830. While the plate
>position in the max output power, it generate lots of distortion on SSB
>mode.
For linear operation, the tubes need a ZSAC of c. 75mA each. For AØ
tuneup, tune/load a TL-922 on the CW tap.
>When I turn down the plate (decreasing the power) the distortion
>disappear.
What did you do to "turn down the plate"?
>When I used it on 3.5 MHz this problem disappear! Is it the
>problem of the AMP or the antenna (my dipole is resonant on 3.7-3.8)?
>
>2. Is is possible to use this amp on FM mode? For how long it is save to
>talk ? ( I always use FM mode when tuning this AMP)
>
Not long. The HV transformer is good for maybe 500w DC continuous
input. Key-down should not be used on the SSB position.
>3. On 10m, with 90 watts FM input, I read 900 Watts (on MFJ-989C meter) and
>700 watts on TL-929 meter. The Ip=600 mA, Ig=260mA, HV=2.1kV.
>The input Voltage is 217.8V and drop to 194V on key-down.
>Is it considered in the normal condition?
>
>4. In some countries, the AC plug has three pin (Line, Neutral, and Ground)
>which is always in fixed position. In my country, the plug can be insert in
>the wrong way (the Germany standard plug).
Why not purchase the Right plug and wire it oorrectly. ?
cheers, Reinhard
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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