Oh No! Another passive equalizer!

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http://www.twin-x.com/groupdiy/albums/userpics/VT1A3frontangle%7E1.jpg

http://www.twin-x.com/groupdiy/albums/userpics/VT1A3front2%7E1.jpg

http://www.twin-x.com/groupdiy/albums/userpics/back-API.jpg

http://www.twin-x.com/groupdiy/albums/userpics/VT1A3_amp.jpg

http://www.twin-x.com/groupdiy/albums/userpics/VT1A3_filter.jpg

Excuse me, not sure if I believe what I'm seeing.

The 2520 plugs in on the back panel?

This looks very good! Would be nice to see a pic of the back panel from the inside, to see both transformer and DOA mounting ..


[quote author="fazeka"]

The 2520 plugs in on the back panel?[/quote]

Just like the original... :grin:

Oooooo, badass knobs Pat.

As usual, a very nice, (and intriguing) build. :thumb:

Looks Great , why take up excess rackspace ,
nice work , what's the modern /vintage switch do ?

[quote author="fazeka"]Excuse me, not sure if I believe what I'm seeing.

The 2520 plugs in on the back panel?[/quote]

That is how it's done on real solid state Pultecs, or at least the ones I've seen !!

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[quote author="drpat"]

The "Modern/Vintage" switches fire off relays that switch the common to all of the frequency selector switches to change the caps from the vintage paper caps, to the modern film types that are set up on a small project board, which can't be seen from the pics. I'll also be setting it up to switch the inductor, as soon as I can find a quality, 3 pole switch that will fit on a 1RU panel. I'd like to do this because I found that the Sowter inductor doesn't saturate like the Pultec inductor does, so they do sound pretty different. Also the bandwidth works different with the Sowter inductor, it has a higher Q, but that may also have it's uses.[/quote]

Get down, mad scientist!

nice old caps. I love the turret board, it was a...?

That's not turret board. It looks like barrier block screw terminal strips mounted upside down on a piece of vero board. Good idea!

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So here's the back without the 2520...


...and this is what it looks like on the other side of that (inside the case)


...and for a closer view

Love it :thumb: Very cool...