Valvestate 8040 transformer taps

[dweingarden]

I bought a Valvestate 8040 used. Looks like parts have been replaced before and the boost channel is not working.
The voltage on the tube's heater is...

[BebopBlues23]

This post will be long, my apologies, but I want to be as detailed as I possibly can be in explaining both what I'm experiencing and what I've tried/tested...

[Vokzel]

Hello, I am fairly new to circuits and amps, and I have an old SLM amp id like to fix. It’s my dad’s and it never really worked to well. The pots...

[0xDEED]

Could someone suggest compatible replacement parts for VHT Special 6?

In particular:
- transformers
- switches (ON/standby/ON)...

[TwinJunior]

Help please! My reverb channel doesn't seem to be working properly. I can hear the reverb responding when i tap on the tank but it's not affecting the guitar...

[Jaoon]

Hey Guys,

so i finally tried to fix my old Valvestate vs100. Iam far away from an Expert. I can repair my guitars and stuff but never tried...

[ScoopMyMidsDaddy]

Looking for a warp 7 schematic please. Old links to the schematicsunlimited website on other posts is now dead. I'm hoping somebody has a copy laying around....

[trimbolim]

Hey there. I have a Deluxe 85 that sounds very nice as long as I avoid certain positions with some of the pots. Several applications of contact cleaner improved...

[iu2]

Hi,
Something broke in my Vox AC15 custom, maybe you are familiar with this kind of problem...
I tried to plugin in an acoustic guitar with a...

[Shrimpfarmer89]

Hello, I have some questions about building an amp with sections from a few different amps. Would It be possible to take a solid state pre amp, add a graphic...

[stevenrb718]

I have an Ampeg SVT-350H that isn't outputting to the speaker jacks. It outputs through the power amp out jack, so the problem must be in the power...

[HellyK]

Hello,

My first post and hoping for some information please if anyone can help. I hope this kind of post is allowed but please remove if not....

[yodaeatsfishstx]

Hello,

I'm posting this here because I haven't been able to find much online, so this is a bit of a shot in the dark. A buddy of mine has a Ross...

[Shrimpfarmer89]

Hello, I am looking for a replacement transformer for an old E1A606-724 / 2-24b power transformer that has 5 wires coming off it. Cant find any online with...

[iH8usrnames]

I use this amp to power two 12" subs in my home audio system.
Overkill? Yes.
Was it cheap? Yes.

It had been working without...

[Queen*Son]

Well I took the amp out anticipating a new tm1 for the tremolo and I wanted to look at some of the mods that were done.. of the 3 1/4" jacks 1 is for...

[clarisso11]

Hi!

I've been working on building an amplifier head around a Blues Junior PCB I got for cheap some time ago. With the help of this forum and...

[clarisso11]

Hi everyone,

I've been working on building an amplifier head around a Fender Blues Junior PCB that I got for quite cheap.

The PCB...

[gojirajesus]

Hi, I have a Session Rockette 30, a British solid state amp from a couple decades ago. In the last few months, I have noticed a consistent humming/crackling...

[stevenrb718]

Got a Bugera 333XL Infinium that powers up but doesn't produce any sound. After a short time all 4 of the tube indicator LEDs on the back light up. Anybody...

[Amapola]

Hi,

After the schematics (power supply zone) ; instead to have on collector +35.6v for Q5 2SD669 and -35.6 v for Q6 2SB649 i have 40.7v and -40.7v...