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2013 Ampeg V-4B 100W Reissue
- Thread starter z11111
- Start date
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Lots of ground plane and wide traces over a nice sized board. Nice that there is so much space inside the chassis. Very well done.
"douche! douche!"
Huh?
Didn't you say that the amp was designed by a girl named Dawn?
Poetic license. Many people feel that designing a circuit board is part engineering, part art. Some artists like to sign their work.
So if I have an AV cab then this new V4B will have a different tolex and grill cloth?
Not a big deal...just trying to verify. I can recover the cab and change the cab cloth as it needs it anyway, I just want to know which cloth and tolex I would need to order.
The "douche douche" was her idea. We have some awesome people here. Anyone who hasn't shot someone with a finger laser gun cannot be hired. I think it's on the application. We get a lot of grief for the "LOUD" thing, but we are really a small group of people who care a great deal about Ampeg.
My one complaint is the lack of side handles on the V4B, at least going by the pictures. I know it's half the weight of an SVT, but 40 pounds is still substantial, and will be an awkward one-hand carry with the top strap handle. I plan on adding side handles.
Ampeg, why was it decided to only include the single top handle?
Liam
Ampeg, why was it decided to only include the single top handle?
Liam
I can get that. We thought it was light enough to go with that. But, we all work out, like all the time....just kidding. We certainly do a lot of 12oz curls, though.
Side handles for me are not only for weight but for just getting up on to a cab...and for easier transport. Definitely wish it had handles....wouldn't even have to be the SVT spring handles. Of course my '74 V4 only had the plastic handle on top...so not a deal killer.
More info from our engineer:
You can note to the one dude that I over-rated the transformer to handle 5.6A @ 6.3VAC. It is not ideal to overload it with 6550s, but it is not as dramatic as he made it out to be. Honestly, I forgot when I was thinking about it.
In regards to the primary difference not being a big deal, I disagree. We auditioned different primary values in the initial stages of design right around 20% and found there were performance and tonal differences. 2200 sounded and performed better, which is why we are using it.
Plate voltage is 445VDC and this amp is fixed bias, not cathode.
Thanks for the new photo. I was wondering how the chassis was shock mounted.
As far as the side handles - there are probably many people that don't want them - and it is an easy mod for the end user IMO
As far as the side handles - there are probably many people that don't want them - and it is an easy mod for the end user IMO
More info from our engineer:
You can note to the one dude that I over-rated the transformer to handle 5.6A @ 6.3VAC. It is not ideal to overload it with 6550s, but it is not as dramatic as he made it out to be. Honestly, I forgot when I was thinking about it.
In regards to the primary difference not being a big deal, I disagree. We auditioned different primary values in the initial stages of design right around 20% and found there were performance and tonal differences. 2200 sounded and performed better, which is why we are using it.
Plate voltage is 445VDC and this amp is fixed bias, not cathode.
Just for posterity my old girl, the fan is not OE.
Nice to see the output tubes NOT so tightly grouped and making their own "oven" in the back.
Like the file cabinet too
Those are our brand-spanking new tube retainers. Minimizes risk of the springs rubbing the tube. One the V-4B and, now, Heritage SVT-CL. Will probably move that to other products.
**Oh wait, you weren't talking to me...**
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