Tweed Princeton 5F2A - Learn diagnostic and repair techniques to make this amp safe and original.

In this video, you may learn skills that apply to your amplifier, such as the correct way to wire a fuse and power switch for safety, and how to make the amp slowly and safely drain the filter capacitors. You will learn how to test for leaking coupling capacitors, how to calculate the static dissipation of a cathode-biased amp and how to convert pico and nanofarads to microfarads.
Ted Weber was the Leo Fender of amp speakers. Chris relates a couple of Ted anecdotes (apologies to Chris’ customers whom he has tied to a chair while force-feeding such anecdotes).
Thanks go to Sunburst Music of Coogee, Australia, (the current owners of this gorgeous amp) for allowing Chris to secretly covet this piece of musical history.

00:00 Introduction
01:15 Visual Inspection
01:50 The White Elephant
03:23 Wrong Reservoir Filter capacitor
04:44 Filtering is important with “cheap” filament/heater wiring
06:15 Let’s make it safe!
07:20 Are Americans odd?
09:27 The correct way to wire mains to switch and fuse
11:20 The Death Cap: To leave or not to leave?
13:00 Tweed Princeton…A cousin to the Champ or the Deluxe?
15:35 Checking the ESR of the Electrolytic capacitors
18:10 Why are leaky coupling capacitors a problem?
19:15 How to convert picofarads (pF) to microfarads (uF)
20:20 Differences between the 5F2 and 5F2A Princeton
24:35 How to identify a leaking coupling capacitor
26:09 Let's make this classic amp a little bit safer by draining filter caps
28:55 How to measure and calculate the static dissipation at idle for the 6V6
33:22 First soundcheck of this 1959 Princeton for undesirable noises
35:00 Install a Weber 8A125 AlNiCo and memories of Ted Weber
40:25 The final Sound test. Thanks to Sunburst Music of Coogee for the privilege.
42:34 Ending. Please LIKE and SUBSCRIBE.
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