new build 36lite with vvr

[chaliapin]

Tube change did nothing for the awful noise.

Quick clip, guitar on 4-5, volume 6-7. Don't mind the static click, it's my electric fencer, I have to turn it off when I'm playing.

I didn't have this problem until recently I don't think! I thought I had a new problem with static clicks but it was an electric heater plugged into the same socket causing the noise in the amp.

Does that sound like blocking distortion?

[Bieworm]

Also a little more hum than previously. I have v1p4 connected to v2p9, should I switch them round?

I’m thinking it should not matter which heater wire goes to what pin. Look at old fenders… they had the heater wires both in the same green… and nobody was organising them in a symmetrical pattern. A 12ax7 is a double triode, and it doesn’t matter which triode comes first

[chaliapin]

https://vimeo.com/804578004

[chaliapin]

My amp is sounding worse by the day...

Im also getting a little static crackle probing anywhere with the meter which I don't remember getting before. Voltages all as they should be.

[Bieworm]

I can’t play this. I don’t have an account

[chaliapin]

I've made a solemn promise to vimeo that my video contains no nudity or adult content and is hopefully viewable now!

[Bieworm]

What’s that clicking? Is it part of the sound?

[chaliapin]

Don't mind the click, it's my electric fence as I said.

[Bieworm]

Well.. it’s hard to make something of an 8 second pling pling clip where there is a clicking that overrides the sound of what you want us to hear

[JMPGuitars]

I can't give any advice based on that video. It's too short, and you have to eliminate external noise so we're only hearing the amp.

[chaliapin]

Ok sorry, I'll go again

[chaliapin]

Ok, I calmed down and started thinking. It was working near perfect before I started messing with removing the ppmv and putting there grid stopper in. Cleaned up where I had the mv temporarily and jumpered the resistor. Back sounding pretty good. Need to send you an outdoor clip because basic sound is close to right but is hard to assess with everything rattling! The grid stopper I mounted p2p between the board and valve socket. I must be misunderstanding somewhere because it has silenced my normal input and made my hot input weird and noisy...

[JMPGuitars]

If you did the grid stopper correctly, it can't effect more than 1 channel.

This 10K is a grid stopper resistor on V1:

grid stopper resistor.jpg

[chaliapin]

Ok grid stopper gone, I can live with a little interference for now. Had a play amp is sounding slightly better than so far ever. I now have a little colour on the tone at 2 on the volume in the hot input with HB guitar up full. Very nice. Very hard to get a video of the nasty noise with the volume up high as my pickups are microphonic and feedback real easy. Here it is with the amp volume around 8 andthe guitar volume just over one.

https://vimeo.com/804697911

[chaliapin]

Hope that's clear this time, basically sounds like an angry static woodpecker trapped in my amp when I play the low strings at close to full amp volume.

[JMPGuitars]

Put grid stoppers in correctly, and use a terminal strip to secure them, see below. I'd still use 10K resistors, but you can go up to 33K if the effect is only partially effective. I'm assuming you followed your schematic for series/parallel input jacks. Use a 3 lug terminal strip:

input grid resistors.jpg

Then try again.

Thanks,
Josh

[chaliapin]

Thanks Josh,

I have 47k or 10k in quarter watt. Is mounting the tag on the valve socket bolt bad practice?

[Bieworm]

Thanks Josh,

I have 47k or 10k in quarter watt. Is mounting the tag on the valve socket bolt bad practice?

However 1/4 watt is no problem in that position it might be noisy to use those. Higher wattage resistors are more quiet. But given the current and voltage there it should withstand the power

[chaliapin]

Thanks guys, I installed them covered in heat wrap. So far quite a lot worse, hummy and bad distortion but im hoping it's lead dress around the tag strip, gonna chopstick that now.

[chaliapin]

Chopsticked for a bit, managed to get rid of most of the buzz, treble a bit glassy and not sounding as good as last night. Nasty noise still there when turned up. Some little bit of radio static with no guitar plugged in and the volume up full.