Another Big Bottle Rocket Underway

Mark · Post by **Mark** » Mon Jul 29, 2013 9:34 am

Who did the lettering on the front panel?

That looks really good, it sets the cab off.

Bob S · Post by **Bob S** » Mon Jul 29, 2013 11:11 am

Thanks guys, this one took along time to finish up.
Mark - the lettering is drawn with photoshop & lazered.
Bob

redshark · Post by **redshark** » Mon Jul 29, 2013 11:34 am

[quote="Bob S"]
385V on the KT66 plates.
180 ohm / 220uF common catthode.

[quote]

Very nice!! the question is...with that plate voltage and that common cathode resistor does it still has the same headroom as the rocket. Is it as dynamic too?

M Fowler · Post by **M Fowler** » Mon Jul 29, 2013 8:01 pm

Nice looking Rocket Bob.

ampmike · Post by **ampmike** » Tue Jul 30, 2013 11:28 am

Nice Bob,You are very talented my friend!!!!!!!

passfan · Post by **passfan** » Wed Jul 31, 2013 10:42 pm

I've found that around a 400v B+ and 6L6 outputs something magical happens up at full tilt. Quiet as all get up at full volume with a super clean AC/DC style crunch and backed off on the guitar volume makes it super chimey. Noticeably louder than an Express to boot. I cant keep em when I build em, Add a spring reverb and it's the perfect blues amp. I think I'll try one with 6V6's soon.

Zippy · Post by **Zippy** » Wed Jul 31, 2013 10:44 pm

passfan wrote:I've found that around a 400v B+ and 6L6 outputs something magical happens up at full tilt. Quiet as all get up at full volume with a super clean AC/DC style crunch and backed off on the guitar volume makes it super chimey. Noticeably louder than an Express to boot. I cant keep em when I build em, Add a spring reverb and it's the perfect blues amp. I think I'll try one with 6V6's soon.

Have you tried KT66 also?

passfan · Post by **passfan** » Thu Aug 01, 2013 1:09 am

No, but I've always understood that it specs out similar to a 5881 which is AFAIK a 6L6GB. Plate dissipitation around 23 to 25 watts instead of 30 watts. Shou;d be worth a try if thats what you got. If not a decent pair of TAD's is only 50 bucks.

Bob S · Post by **Bob S** » Thu Aug 01, 2013 1:56 am

I've haven't tried 6l6's (yet). Will this weekend if I get some time.
I seem to remember RJ liked them in his.
The kt66's do sound great - huge & full.
A while ago I built a fixed bias big bottle rocket reverb.
I should A/B them when I get the chance.
To my ears EL84 rockets have a more defined chime to them.
The KT's just sound fuller & more rounded.
Hope that makes sense.

Reeltarded · Post by **Reeltarded** » Thu Aug 01, 2013 2:02 am

The 6L6 seems like another great match with these amps. The circuit will let the stout forward thing happen in spades probably.

Dunno about chime though.

Hurry up weekend.

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