Peter,
Its usually a bad D5 ( 1N270 ) diode. The 68 ohm resistor on the switch is
for the plate current function only.
73, Gary
http://home.roadrunner.com/~w8pu
R-4A T4-X R-4B T4-XB R-4C T4-XC MS-4
L-4B
2A 2B 2C 2NT 2CQ 2AS 4-LF
TR-4 TR-4C TR-4CW/RIT RV-4C
TR-7 RV-7 CW-75 MS-7
WH-7 W-4 WV-4
Peter,
If you have verified continuity through the switch then look at the
schematic and you will see there is a 1N270 diode between the output meter
control pot and the antenna. If that diode is defective, missing, or has a
cold solder joint you will not get any reading.
Ken
WA2LBI
On Sun, J
wrote:
From: Peter Ravn
Subject: [Drakelist] T4XB output meter control
To: drakelist@zerobeat.net
Date: Sunday, January 15, 2012, 10:34 AM
When I press and rotate the output meter control on
my T4XB, nothing happens. I have checked the switch and the 68 0hm
resistor on it. They are Ok
When I press and rotate the output meter control on my T4XB, nothing happens. I
have checked the switch and the 68 0hm resistor on it. They are Ok.
73 Peter, OZ8CTH___
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