• 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.

Scrapbox 45 in 4 weeks!

Yeah. Using the Sony transformer. I’m getting 660 on the other side of the center tap. My house is right next to a power transformer, so I’m getting 125v into the house. The voltage is u loaded, which will change once I get all the “bits” in.

Need to order some 45 tubes before I can see what I’m actually getting.

If I run into any issues w having enough voltage, I can always use a different rectifier

Had to figure out some way of fitting all the iron in the chassis, and also to try and provide some shielding.
 
Could you draw schematic of how you have the power transformer hooked up with the rectifier?

Are you using the 121V tap on the primary side?

The maximum voltage rectified is theoretically 1.41 times the AC voltage, so that would mean 423 V. That’s why I am confused about how you’re getting such a high voltage, even unloaded……

Maybe we should move this over to your thread, since my amplifiers already built😅

Is this your first this tube amp,or just your first with a 45?
 

Attachments

  • image.jpg
    image.jpg
    711.9 KB · Views: 32