• 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.

Komuro DC 300B crct w/ 50dht?

Status
Not open for further replies.
Hi guys,

Is there a way to implement Komuro's DC 300B circuit for a 50dht while keeping the triode strapped pentode's choke-loaded anode output Z well below the 10kOhm max limit (for the 50 triode)? Or is the only option LC coupling (grid or also plate chokes), besides IT coupling of course?

I may try it using a 76 as input (unbypassed cathodes). Could this circuit's driver stage be a good candidate for "series bootstrap biasing"? Thanks.
 

Attachments

  • komuro_300b.jpg
    komuro_300b.jpg
    92.6 KB · Views: 560
Status
Not open for further replies.