• 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.

EF 91 / Z77 Amp? help needed for newbie

Status
Not open for further replies.
Hi, i just found some valves in the garage on a lil old radio thing, but half the parts are missing, anyway, what i was wondering is, i have 4 of these valves, and im looking to make a little amp for electric guitar from them, but i dont even know where to start. im thinking 2 tubes for preamp and 2 for power amp section. can anybody help me out with a schematic design or anything here? i can do electronics, i have a gcses in it and its one of my hobbies, i just dont know much about tubes. thanks for any help:bawling:
 
The main thing is transformers: you will need a power transformer and a speaker transformer. If you have those then you can easily build a guitar amp. What are the other two valves?

You can make a really neat guitar amp from a single EL84 and a single 12AX7. Try www.ax84.com

I have also built several fender champ clones. This amp uses a 12AX7/ECC83 and a 6V6, and sounds awesome.
 
Status
Not open for further replies.