You are here

Supro Coronado Valco 1690T overheating 10 watt resistor

The 10 watt resistor actually starts to glow. What is the cause

Comments
torokj
torokj picture

Hi,
https://elektrotanya.com/supro_1690t_sch.pdf/download.html.
1.Replace the 6L6 tubes .One of these is gassy ,or there is grid-cathode  short circuit.
If you remove the tubes,and the resistor is still glowing ,check and replace
the 10uF/450 V (possible leaking) capacitor .
Good luck to repair!
TJ
 

0