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1993-04-19
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637b
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27 lines
SB-045
TR-7600/7625 Audio Tone on TX 8-10-79
Some TR-7600/7625 users report a low background tone during TX, especially
noticable at full quieting by the receiving station.
On the PLL unit X50-1580-00, change:
L18 from 22 uH to 33 uH
C61 from 22 pF to 33 pF
C60 from 22 pF to 10 pF
C42 from 22 pF to 39 pF, or bridge 18pf across foil side and leave
original C42 in place. No adjustment is necessary.
New part:
L18 33uH L40-3301-03
Please annotate your service manual.
JEB/yn
(c) 8979TKC
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