Thread: Grundig tk 24
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Old 19th May 2021, 12:14 am   #70
reartech
Triode
 
Join Date: May 2021
Location: Karnataka, Bangalore, India.
Posts: 34
Default Re: Grundig tk 24

Quote:
Originally Posted by reartech View Post
Quote:
Originally Posted by ms660 View Post
Other voltages aside, pins 2 and 7 should be 0v or almost 0v when measured with respect to ground, any positive voltage on those pins will reduce the anode voltage, measure pins 2 and 7 again with the valve removed, if they still measure positive I would check the coupling capacitors to the control grids (C17, C18, C20)

Lawrence.
Yes Sir I will Check And update
Krishna
Sir when i Remove Cap on Pin 2 i got 0 volt but audio signal on pin 2 and pin 1 and 6 have got their rated voltage ie 100 and 140 but pin 7 4 volt again i removed cap from pin7 i got 0v on pin7
cap leg removed from pin 2 shows 150v
cap leg removed from pin 6 shows 4 volts
What next ?
Krishna
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