GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Melquiades Amplifier
In the Thread: Is it the time to change those tubes?

Post Subject: Mequiades BIOSPosted by rowuk on: 7/31/2013

Romy, I think that the only real "solution" is to develop a boot cycle for your amps that consist of warmup, parameter test and after this is test is passed, change to operational mode. I am pretty sure that your tubes do not simply unexpectedly explode. I am pretty sure that some vital parameter (like transconductance) deteriorates until there is no choice except explosion. If you, with a PC monitored the vital parameters during the boot and shutdown cycles (when no music is playing), you probably could run your system to a preset trigger level and get a notification that doom is near. AD measurement cards with multiple channels are available at low cost as are analog sensors to measure just about anything. No digital operation would be necessary during the audio playback mode.

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