• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

EAR834 Clone Zener Diode Temperature Hot ?

Jump to Latest
S

Scott Muni

Member
Joined 2021
#1
I assembled a zhiliaudio ear 834. Poked around with infra red temp gun, everything seems good except the zener ladder is 180F. Seems to me that's higher than expected. I installed (4) 1n5373, voltage measures 285 DC. Input 300 VAC. Currently have choke in place of the 1k 3watt resistor. Verified all power supply resistors in correct position and value.
Thoughts on the temperature?
 
You must log in or register to reply here.
Top Bottom