Can we identify key parts of the circuit board, find problems and resolve those problems, before they become major problems? No problem!
In this video, I refer to the Artist TweedTone 12A that I designed for Artist Guitars.
IF YOU THINK YOU WOULD LIKE TO BUY THE TWEED TONE 12A, CAN YOU PLEASE USE THIS LINK: alnk.to/eZESRCK It will earn me a small commission for my work at no cost to you
Video Index:
00:00 Introduction
01:12 The Problem. A cracking sound.
03:20 How to disassemble the Tweed Tone V
04:25 What can we recognise with no schematic?
05:05 Why are there capacitors across rectifier diodes
07:35 Overheated Cathode bias resistor
12:30 Tip: always check Cathode voltages for tube operation
14:20 Calculate power dissipation of cathode bias resistor and the 6V6
19:15 Calculate power after increasing cathode bias resistor
27:30 End Credits
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