Ok , thanks for the info Jay, Ill dig into it some more and let you know what I find. Its not the square resistor , I know what you mean. Its the rough sandy kind just shaped like a big capacitor. On Monday, July 31, 2023 at 09:41:45 PM EDT, Jay Hennigan via Jukebox-list jukebox-list@lists.netlojix.com wrote:
On 7/31/23 18:33, Jim McClave via Jukebox-list wrote:
Does it say how many watts it is? Looks like maybe a 10 watt one or so. I have one of those big fold-out schematics for a 1448 and just doesnt show it. Mine reading about 12 Meg ohms would likely cause it to draw way too much current, wouldnt ya think?
No. Current is inversely proportional to resistance for the same input voltage. At 12 megohms it's essentially an open circuit and you'll get extremely low current, meaning that the tweeter won't get any signal and you'll lose high-frequency response.
This resistor burning out isn't the cause of the overload and hum, but it may have been the result of it if the amplifier is oscillating at a high frequency.
The square sand-block power resistors about an inch long are 5 watts, those about 2 inches long are 10 watts.