Number One 5E3 chassis completed.

Posted by on February 17, 2013 in Amp Repair, Electronics Repair, Home | 0 comments

Today I put the finishing touches on my first 5E3 chassis. Now it’s time to go through initial power up testing. First a dim bulb current check with no tubes. Check. Then with the RCA NOS black plate rectifier tube. Check. Then putting in the pre-amp tubes and looking at the signal with an O – scope at the end of the pre-amp section. Everything looks great so far, and very quiet. Next we put in the JJ 6V6 output tubes. Happily, the amp is quiet and works, but I have some voltage and output dissipation questions that are better left to another day after I pester a couple of amp build forums. Here are a few shots of where we are so far.

Final first 5E3 chassis build

Final first 5E3 chassis build

Here is the pre-amp section. Notice the sexy shielded input wiring.

First 5E3 input section

First 5E3 input section

Here is the output and power supply section.

First 5E3 output and power supply section

First 5E3 output and power supply section

I think I will be playing guitar through this amp by tomorrow. Will put the chicken head knobs on, mount the chassis, wire up the speaker jack, and report back.

 

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