Ampeg inductor substitute, V2 build, various questions

[Smokebreak]

I'm looking for suitable discreet inductors to sub for the Ampeg V2,V4, etc multitap inductor. Apparently it is tapped at 800mH, 300mH, and 100mH. However, I've never used inductors in anything besides power supplies, so I'm not exactly sure what I'm looking for.
Would this work ? :http://www.mouser.com/ProductDetail/Mur ... pJMw%3d%3d

[Structo]

Can't answer the question but man, Ampeg really used a wide assortment of tubes didn't they?

[Leo_Gnardo]

I don't see why not. I also don't see - - - well everytime I try to look up Mouser stuff online my computer locks up, dadrattit fooey! If you can get a 100, 200 & 500, stack 'em up and you should have the Ampeg choices for a small fraction of what Mercury charges for their replica(?) of Ampeg's inductor. Also you could select different values of L & C to pick your own favorite frequencies.

[JMFahey]

Long ago I wound my own, I'm not offering you the data because it was reached empirically on a lot of unknown ferrite potcores I found at that time, but there is a Russian site posting all data to wind your own, using commercially available cores, so if you wish, search for it.

[Smokebreak]

Yea Tom, that 6K11 is 3 triodes..2 med mu and 1 high mu, and the 12DW7 is one of each, so I'll sub au7s and ax7s to keep cost down

Thanks Leo for the confirmation. I may run them in series, as well.

Thanks Juan, and no worries, I'm not gonna roll my own but I did see mention of that Russian document in my searching, so maybe one day. I'm gonna have a whole other set of challenges for this project, mainly space!

[Leo_Gnardo]

Yea Tom, that 6K11 is 3 triodes..2 med mu and 1 high mu, and the 12DW7 is one of each, so I'll sub au7s and ax7s to keep cost down

Thanks Leo for the confirmation. I may run them in series, as well.

That's what I meant, in series.

JJ makes a dandy 12DW7 sub, I think they call it ECC832. I got a batch of 10, now down to 3. Antique/tubesandmore carry them. Reasonable price too. No need to swap in AX or AU when fixing old SVT, V4 & similar, yay!

Not much available as direct sub for 6K11, boo.

And Juan finally has an avatar - looks good made my day just a little bit brighter.

[Smokebreak]

Ya know, I was thinking about using the 12DW7, but thanks to the darned 6K11 triple triode, I'm gonna end up using 1/2 of an extra ax7, or au7 anyways. I don't wanna use a 6K11 because I've had such bad luck lately with the "odd" tubes lately, and I don't wanna have to roll through those.

[JazzGuitarGimp]

A while back, I had a VT-22 in for service - my first experience with the Ampeg tone stack, and I have to say the tone stack in general, and more specifically, the mid control w/ switchable center frequencies is a marvelous thing of wonder. I was very impressed with what it can do.

[jaysg]

I'm a member here: http://www.ampegv4.com/

You can find parts and resources here. Fliptops.net

[Smokebreak]

My first experience was the same. I fixed a friend's V2 and realized those mids are a whole nother ballgame. Absolutely gorgeous.

[JazzGuitarGimp]

My first experience was the same. I fixed a friend's V2 and realized those mids are a whole nother ballgame. Absolutely gorgeous.

All amps should have such a versatile midrange control. So, how much of the amp are you building - or are you grafting just the tone stack into your own design?

[Smokebreak]

I'm a member here: http://www.ampegv4.com/

You can find parts and resources here. Fliptops.net

Jay! Good to hear from you. Did you ever build this amp?

[Smokebreak]

My first experience was the same. I fixed a friend's V2 and realized those mids are a whole nother ballgame. Absolutely gorgeous.

All amps should have such a versatile midrange control. So, how much of the amp are you building - or are you grafting just the tone stack into your own design?

I'm building channel 1 bright with the organ transformers and 7868s, 5BC3.
I hope they all work! I started gettin it together today

[JazzGuitarGimp]

Nice! That amp should prove to be onehelluva pedal platform.

[Smokebreak]

So, since I'm using the 7868(7591) tubes in this V2 build, and the V2s ran various 6L6 types, what would be a good approach to reduce the signal to the 7868s, as they are a higher sensitivity tube than a 6L6 type? Clearer scheme courtesy of jaysg