Guitar Gear Forum

Hello, all.

You've heard the story a thousand times. Found a vintage amp in Grandpa's attic, wonder if it still works. I have some basic wiring/mod skills, so before plugging it in, I opened up the hood to see what I could see. I didn't have to wait long to see the first problem. Can anyone identify this bad boy? Runs from the 6v6gt to the 5y3gt. Thanks so much for taking the time.

Model: Gretch 6150T (aka 6151) (Valco) 5 watt
Schematic: http://www.oldfrets.com/Valco/Schematics/gretsch6151.pdf

Schematic says, the resistor between the 6v6gt to the 5y3gt tubes is a 6.8K resistor.
Here's an article about how to read the band codes: https://www.diyaudioandvideo.com/Electr ... olorCodes/

The schematic doesn't give the wattage of the resistor... which is important.
The size of carbon comp resitors determins the wattage.
https://www.electronics-tutorials.ws/re ... res_7.html