Rocket Documents

Trainwreck schematics, designs, pictures. Only members may post files here.

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Ron Worley
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Rocket Documents

Post by Ron Worley » Wed Jun 11, 2008 2:48 am

Hey Wreck fans... Some more interesting technical data thanks to the digital wizardry of Tim Hulsey. We worked hard over the weekend to get the drawings right.

This data is based on actual Rocket amps, so no need to ask if we're sure... it's based on the real deal.......

Tim is a master at this stuff, I must give much credit to his mad drawing skills!!!

EDIT: Updated version uploaded with corrections on the Bass pot 11 June 08
EDIT: Layout updated with corrected rectifier pin numbers 12 June 08
EDIT: Schematic updated, removed extra fuse on 120VAC supply 13 June 08
EDIT: BOM updated with correct Panasonic part #s, other small stuff 21 July 08
Edit: BOM Rev 1.4 posted- numerous cleanup items
EDIT" New Layout with clearer text on the Screen Resistors
EDIT 21 Sept 08- Updated BOM.
EDIT 1 Nov 08 BOM Updated
EDIT: 23 Nov 08- Major BOM Revision, Revised Voltage Chart
EDIT: New Layout posted with corrected cap stack ground wires
EDIT: 19 Jan 00- updated BOM, little stuff.

EDIT: 09 Mar 09- changed B+ wire on Rectifier tube

NOTE: The Rocket layout shows 100K Bleeder resistors in the drawing, but note that they are NOT in an original Rocket- there's a small note stating this, but it's not very obvious.

Ron Worley and Tim Hulsey (DrHulsey)

EDIT: 29 Oct 09- BOM updated
EDIT: 23 Nov 09- BOM updated
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Last edited by Ron Worley on Mon Nov 23, 2009 11:59 pm, edited 24 times in total.
Ron

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angelodp
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Lovely

Post by angelodp » Wed Jun 11, 2008 3:17 am

Once again you guys have outdone yourselves and imparted another series of great docs for us all.

Many Thanks

ange

chimeboss
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Re: Rocket Documents

Post by chimeboss » Wed Jun 11, 2008 4:46 am

simply brilliant!

cb

Fischerman
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Re: Rocket Documents

Post by Fischerman » Wed Jun 11, 2008 11:46 am

Very nice! I think the bass control ground wire is on the wrong lug in the layout. The right lug should be grounded...the way it is now the entire 'bass end' of the tone stack is always grounded.

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Ron Worley
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Re: Rocket Documents

Post by Ron Worley » Wed Jun 11, 2008 1:05 pm

Fisch-

Great eyes, thanks for the catch.... after awhile it starts to blur....

EDIT: 19 Jan 09- Rocket Voltage chart added

Ron
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Ron

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Lonely Raven
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Re: Rocket Documents

Post by Lonely Raven » Wed Jun 11, 2008 1:29 pm

Thank you guys so much for this! It's been great being a small part of this Rocket project!
Jack of all Trades,
Master of None

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Structo
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Re: Rocket Documents

Post by Structo » Wed Jun 11, 2008 2:30 pm

Fischerman wrote:Very nice! I think the bass control ground wire is on the wrong lug in the layout. The right lug should be grounded...the way it is now the entire 'bass end' of the tone stack is always grounded.
Is it correct now?
The #1 or left hand lug goes to ground on the bass pot?
Tom

Don't let that smoke out!

Fischerman
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Re: Rocket Documents

Post by Fischerman » Wed Jun 11, 2008 3:06 pm

Looking at the back of the bass pot...the two wires from the two caps go to the left lug and the middle lug. The wire from the treble pot goes to the left lug. The 10k resistor goes from the middle lug to ground. The right lug goes straight to ground.

The schematic (IMO) should show that when the wiper on the bass pot is at the 'top' that's the '0' setting and when the wiper is at the 'bottom' then that is the bass on '10' setting. It's just the opposite of the Treble pot and the Volume pot (and the way most pots show on a schematic).

pureoldsound
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Re: Rocket Documents

Post by pureoldsound » Wed Jun 11, 2008 3:17 pm

Change the 1k 5W screen resistors to 100 ohms...on the schematic

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angelodp
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bass ground fix

Post by angelodp » Wed Jun 11, 2008 3:26 pm

http://s260.photobucket.com/albums/ii9/ ... detail.jpg

[IMG:302:148]http://i260.photobucket.com/albums/ii9/ ... detail.jpg[/img]
Ok - so is this corrected. I took the liberty of re-drawing this detail. Are we good on this as is.

best ange

Fischerman
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Re: Rocket Documents

Post by Fischerman » Wed Jun 11, 2008 4:14 pm

No ange, that's the same as it was unless I'm missing something. The green wire doesn't go from the left lug to ground...it goes from the right lug to ground. It appears you just moved the actual solder point of the green wire up the ground buss a little (which does nothing).

Fischerman
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Re: Rocket Documents

Post by Fischerman » Wed Jun 11, 2008 4:16 pm

Also, are the bass/treble pot supposed to be audio taper? I thought they were both linear taper. FWIW, I used linear for the treble and audio for the bass and the sweep is very good.

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Ron Worley
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Re: Rocket Documents

Post by Ron Worley » Wed Jun 11, 2008 4:23 pm

I will have Dr Hulsey modify the original document, then will post.

The Bass and Treble post were listed as Audio taper in the Matt Taylor schematic, so, that's how we did the layout. I have seen no documentation to the contrary, but would like to see it if we've got it wrong.

Let me know if you find any other errors!

Ron

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angelodp
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Duh - dislex

Post by angelodp » Wed Jun 11, 2008 5:52 pm

man that was helpful - i think this is right now - sorry for the flub

[IMG:302:148]http://i260.photobucket.com/albums/ii9/ ... tail-1.jpg[/img]

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Ron Worley
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Re: Rocket Documents

Post by Ron Worley » Wed Jun 11, 2008 6:09 pm

You got it right this time!! :D Technically, the lug is just bent against the pot casing, which is grounded to the copper wire buss....

Ron

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