timed relay

Discussion in 'The Projects Forum' started by pothound, Aug 9, 2009.

  1. pothound

    Thread Starter New Member

    Aug 7, 2009
    hi everyone
    i have a timer delay/relay circuit in a hybrid amplifier. i suspect at turn on the filaments heat up, 30 seconds later the b+ is connected. something in the filament circuit shorted to ground. i suspect a relay[zettler az820-2c-5de]. i have a relay in each channel. can they cause a short? the filament circuit also powers the 555 timer. the circuit is a simple bridge to cap to 1 ohm resistor to cap to filaments and timer. i removed the caps and still have the short. i also checked bridge rectifier and removed 555 timer.
    i aapreciate any help and thanks in advance.