Daviedawg wrote: ↑Tue 06/09/20 2:11 am
You say that the board is marked 220k. But you have measured 220. Did you mean 220k?
Looking at the colour code on the resistor most to the front of the picture with 220k marked on the board I assume that is the one. The colour bands red red is 22. But it is hard in the pic to see what colour the third ring which is the multiplier is. If it is brown the component is 220ohms. If it is yellow it is 220kohm which is what it should be.
Dd
Edit: gold is the tolerance
Consensus so far seems to be that the white/yellow strip should be yellow, and looks a bit yellow in one photo, but to my eye and in most photo's, it's more of an off white.
My meter is auto range, and just says 221ish or 218ish, depending on reversing the leads or not. So I do not really know for sure what the 220 means, but I assume it means 220K as that's what is called for, and that is mostly what the stripes indicate, so at this point, most clues suggest, it's a 220K.
But I defer to more professional opinions as I am new to this, but not new to troubleshooting and such.
~~~
I took PC programming and also had a PC business, sales and repair and I taught myself networking, etc. so I'm sharp with technical issues, but not experienced with amp repair,, yet.
I figure on building my power tube probe kit, today or tomorrow. After that, I can get a better idea what's going on. The good news it two fold. Wow do the new tubes sound great, and I really like em. And I found a local amp tech, and he's fitting me in next month.
Fella's, yesterday, I loaded my '82, 50 watt, Marshall JCM 800, with mostly,,, Telefunkins! I kid you not. It was glorious. Mullards for the rest. I like Mullards, but wow, I like Telefunkin better. I hear JJ owns them.
~~~
Best set of tubes I ever had, and I had a single preamp tube, wow do I wish I had 2 or more!, for the tone spots, V1 and V2.
Amazing, deeper and broader tones, pick sensitivity, but the tone was hard to describe, rich and deep and sorta vintage sounding, high quality.
So much so, I didn't need to roll off my tone for my bridge pickup, which I faithfully have had rolled off to 3/4, for ever! I turned that tone knob all the way up, and it still did not get ice picky, not too much high highs! I could not believe it!!!
~~~
That shocked me, on my SG Standard with stock pups and pots. I can't stand lower quality tubes now. I am hit, I have been changed, my eyes have seen the glory, hehe,, and I can't go back.
Nicest my rig has ever sounded since I've owned it, and that's going back some 12 yrs or so.
I can't wait to get this amp working properly and stops blowing fuses.