The exciting conclusion to the UltraLinear Pro Reverb. I have the predictable amp-loves of the ‘70s child. The JMP 50. A JMI AC30. And the spanky clean Fender sound of which this is an excellent example. Let me know what you think of the sound sample at the end of the video.
We will set the Bias on this very high-voltage Fender. It seems cold, but I trust the oscilloscope more than simply measuring current.
Have you wondered what the Pull switch on the Master Volume does? Let’s take a look.
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Video Index
00:00 Introduction
00:20 Let's make the power wiring SAFE
02:00 Summary of work completed in PART ONE
03:12 WTF? Why do I need a speaker load on the Reverb Transformer?
04:50 One way to check for correct voltage selection of multi-tap Power Transformer primary
07:50 A quick way to test Preamp Tubes
10:50 The cause of this intermittent power
13:29 Will we find crossover distortion on this cold bias setting?
16:00 How to calculate maximum power.
18:40 Test Tremolo and Reverb
19:52 Why it's important to test for leakage on a coupling capacitor
21:30 A look at how the Push-Pull Master Volume works
27:50 My setup for the sound test
29:40 Song choice to demonstrate the Pro Reverb
33:05 Progress of my Daughter’s Breast Cancer
34:34 End of this video