KT66 Rocket Reverb

Bob S · Post by **Bob S** » Sun Oct 05, 2014 1:19 pm

It started life as an Express & morphed into this.
Normster, Mark Fowler, RJ & a few others did the major r&d - thank you all.
Pacific iron around 405 at the reservoir. 5k2/6k6 ot wired 5k2.
Fixed bias - might make that switchable to catthode bias. PPIMV - no NFB.
It will get boost/reverb floor switches.
Anyone planning one - check internal cabinet height. KT66's are tall & you need a little breathing room between the reverb pan & the tubes.
This one has a short pan mounted above the pre-amp section.
Sounds good to my old ears - nice sustain - cranked it's got lots of crunch going on. It'll take a couple of weeks to get some clips.
Next.

Post by **Colossal** » Sun Oct 05, 2014 1:28 pm

What a beast! Like those fat bottles. Very nice Bob!

p.s. I think your EL84s have elephantitus

martin manning · Post by **martin manning** » Sun Oct 05, 2014 1:41 pm

Nice Bob, looking forward to hearing it sing!

PS, pretty fancy figured hardwood speaker cab there too!

M Fowler · Post by **M Fowler** » Sun Oct 05, 2014 3:54 pm

Bob great looking build, love the CC resistors and those cabs are really nice.

jeff12 · Post by **jeff12** » Sun Oct 05, 2014 4:43 pm

Very nice Bob. Can't wait to hear clips. Like the guitar rug.

RJ Guitars · Post by **RJ Guitars** » Sun Oct 05, 2014 11:57 pm

Great Job, I think you'll be delighted with how this works out and how diverse the tones you'll get from her plus I expect it will be very pedal friendly as well.

I especially like that clever use of the old power supply board...

nice work!

cbass · Post by **cbass** » Mon Oct 06, 2014 6:09 am

Looks fizzy those PS caps are way to blue

sepulchre · Post by **sepulchre** » Mon Oct 06, 2014 6:46 am

Looks Great! Looking forward to the clips.

And I agree with Jeff: nice rug!

M Fowler · Post by **M Fowler** » Mon Oct 06, 2014 7:05 am

My daughter gave me a guitar rug 3 years ago, nice

sepulchre · Post by **sepulchre** » Mon Oct 06, 2014 7:37 am

Nice!

jeff12 · Post by **jeff12** » Mon Oct 06, 2014 3:48 pm

cbass wrote:Looks fizzy those PS caps are way to blue

He told me brown=fizzy, now you say Blue=fizzy too.

What about Orange?
I hope Orange is ok or I may as well just stop building amps.

Bob S · Post by **Bob S** » Mon Oct 06, 2014 5:17 pm

Sorry to be the bearer of bad news Jeff, but orange is the fizziest of all.
Please send all your amp building stuff to me.

I noticed before that we have the same rug Mark. Nice. Mine was a gift from my neighbor after her guy passed away. Always reminds me of him - George
He was like a brother.

M Fowler · Post by **M Fowler** » Mon Oct 06, 2014 8:30 pm

I noticed before that we have the same rug Mark. Nice. Mine was a gift from my neighbor after her guy passed away. Always reminds me of him - George He was like a brother.

Keep his memory alive Bob. nice!

sagitt · Post by **sagitt** » Tue Oct 07, 2014 7:06 am

M Fowler wrote:My daughter gave me a guitar rug 3 years ago, nice

rug really tide the room together!hah!

JoeCon · Post by **JoeCon** » Tue Oct 07, 2014 1:11 pm

Yes,
Mark is "The Dude" alright. He's helped me a lot over the past two years and answered a bunch of dumb newbie questions no problem.
At one point there it looked like he was cranking out an amp everyday.

Thanks Mark for all your help....getting my KT66 Rockster going too.

The Amp Garage

KT66 Rocket Reverb

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