Recent content by r0ddan_swe

I'm not an idiot, this time anyways... I did record on my phone, but it doesn't cut thru. My ultra low switch on ch 2 works the opposite way around. It's mellow when not engaged and middy and aggressive when engaged (in the right position). Maybe that's why I could get it so cheap =) Oh well...

I'm opening her up again. What if I put the connector on backwards and just didn't think of pushing it down. My life is full of mistakes, wouldn't be the first time I'm an idiot. I took pictures before removing anything the last time so I will know right away. If it is me being an idiot, please...

It does make sense, the guitarr theory. About the adding of the 40 hz, that’s low. That’s what makes my behind buzz while watching a movie. Maybe the frequenzy is of somehow and it ads someting different… if service was free and easily availibly where I live I would for sure have it looked over...

Wired wrong at the factory is my theory. But I don’t know… no one has tampered with this amp beside changing out a few tubes. My self included. If it’s an old problem I don’t know. I never use ch 2 and normally this amp is in a rehersal studio or on a gig. Never at my place where I can sit...

They are. And I am curious to find out if the behaviour of that switch on ch 2 on my amp is doing what it is supposed to do or not… I have seen you in a lot of threads here while searching. My guess is that you have an amp like it. What is that switch supposed to sound like? Is it in the area of...

Not sure we are talking about the same thing here. Or if there is a language barrier I can’t cross when typing in english. I believe those connectors are called molex. Used in many applications. What I am talking about is when the cords were put inside the female connector. J12. Someone might...

The connector goes only one way, I know. But when it was put together, is it possible the two chords were put in the wrong holes in the connector? There are four cords in that connector... My English limits my ability to communicate here. Do you understand what I mean? two cords may have...

Very informative, great post! I wish I had your knowledge about circuitry, I don't. The first part I can read and understand. Bear in mind that English is a second language to me. I understand that the VR is a modern version of the original SVT with 12ax7:s and 12au7:s instead of the original...

I might add. This amp have been serviced once as it went silent on me at a gig. There was this extra encore we didn’t expect, so I had shut it down. When I put it back on it went silent so it had some service on it. Been working since with new tubes in v1 v2 and v4 and the two drivers in the...

Totally agree. But there is no ”for real” Ampeg tech around here. I could get it to one, but I doubt he would be fine with just getting the board. He would like to have the whole amp so he can measure everything while it’s running. And it’s the taking apart and putting together that is time...

Thank you. The glue is just there so it won’t crack even more, or fall apart. One sunny day I will service that nuclear reactor of an amp, but as for now it will be fine. The original dropping resistor is in there still as it measured to spec. Other than that it looks fine. Solderings still...

Thank you! After a bit of thinking that was my aproach aswell. Why take a chance. As it turns out thou, the resistor was not broke. A bit cracked but not broke. Measured just fine. Put a tiny bit of superglue on it. Gave the tubeholders and the potentiometers some love and attention and put it...

Greetings My first post. English is a second language. Regarding an Ampeg SVT VR. Got the preamp out. Found a resistor that didn't look ok. It's a wire wound 5W resistor at 8.5 kohm. R24 in the schematic for the preamp. I'm not a tech myself, but to me I seems as if the resistor has something to...