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  1. D

    Tube Help With Bogen Amp

    I got the schematic in DjVu format. If you need this to help me bias then email me and I will send it to you. I don't know how to upload this type of file. Thanks [email protected]
  2. D

    Tube Help With Bogen Amp

    Ok, ordered through Doug, here is what I got... (1) JJ ECC832 (1) JJ GZ34/5AR4 (2) Matching pair TAD 6L6GC-STR (4) Tung Sol 12AX7 Total was just under $130. Now, I need help. Is there anything I should know about replacing these? Can oils (finger prints) get on the tubes or not (like...
  3. D

    Tube Help With Bogen Amp

    ok, the two other tubes are a GZ34/5AR4 and a 7247. The devices with the notation of X_ are 9 pins, pretty short and about a half dollar size round. On the top they have printing like this... 45-9305 -01
  4. D

    Tube Help With Bogen Amp

    Contacted him and he suggested the Tung Sol and then the Tad 6L6SPRs. Yet to find what the 3rd type is and he had no idea what that X1-X4 component is. Still looking for an answer to that. Thanks
  5. D

    Tube Help With Bogen Amp

    Hi, My Dad has a Bogen MX30 amp. I am going to put all new tubes in it for fathers day. It has been sitting in the basement for years and we just finished a new cab and am going to use this for the head. It has 12AX7s, 6L6GCs and one other kind but I can't remember off the top of my head. I...
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