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Old 28th March 2008   #361
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Old 31st March 2008   #362
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Just wanted to say that a thread like this is EXACTLY what I've been looking for these past couple hours. Figures that I'd find it in the most likely place....Good on you for putting it up, Tim :D

And thanks to everyone posting the goods!

Last edited by drosophila; 31st March 2008 at 11:36 PM.. Reason: adding
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Old 2nd April 2008   #363
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This can't be good. I saw the pic and had to share.
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Old 2nd April 2008   #364
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This can't be good. I saw the pic and had to share.
That looks like something from Ghosthunters.
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Old 2nd April 2008   #365
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This just came in yesterday. Thought I'd share my peek inside.

LaChapell 583s Tube Preamp for 500 series racks, complete with Telefunken tube.





Opening in the top of the unit for swapping tubes (seen below).



NOTE: I don't understand why these images aren't showing up in the body of this post. I put HTML image tags around them. Oh well. If a moderator could edit this and make them show up, I'd appreciate it.
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Old 2nd April 2008   #366
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Anybody care to guess what these are?
Sure, they're 4-gang 16mm film synchronizers. And a squawk box on the floor.
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Old 3rd April 2008   #367
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Quote:
Originally Posted by Lynn Fuston View Post
This just came in yesterday. Thought I'd share my peek inside.

LaChapell 583s Tube Preamp for 500 series racks, complete with Telefunken tube.





Opening in the top of the unit for swapping tubes (seen below).



NOTE: I don't understand why these images aren't showing up in the body of this post. I put HTML image tags around them. Oh well. If a moderator could edit this and make them show up, I'd appreciate it.
Lynn, be careful with my new pre!!!
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Old 3rd April 2008   #368
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Quote:
Originally Posted by Lynn Fuston View Post
This just came in yesterday. Thought I'd share my peek inside.

LaChapell 583s Tube Preamp for 500 series racks, complete with Telefunken tube.





Opening in the top of the unit for swapping tubes (seen below).



NOTE: I don't understand why these images aren't showing up in the body of this post. I put HTML image tags around them. Oh well. If a moderator could edit this and make them show up, I'd appreciate it.
Hi Lynn, you mean like this? I just saved copies of your images to my computer, then in this reply I clicked the Manage Attachments button in the Additional Options section and uploaded them.
Attached Thumbnails
The GUTZ-0804-583_1.jpg   The GUTZ-0804-583_2.jpg   The GUTZ-0804-583_3.jpg  
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Old 3rd April 2008   #369
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Hi Lynn, you mean like this? I just saved copies of your images to my computer, then in this reply I clicked the Manage Attachments button in the Additional Options section and uploaded them.
Actually, no. It's possible to add images as attachments so they show up as in your post. But then you have to click on them to see the full sized image.

If the image resides on a server already though, you can just add image tags to its URL and it should show up in the post. Like this:

LaChapell 583s-On the inside - 3dB

For some reason, this thread won't allow a post with image tags, at least not from me.
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Old 3rd April 2008   #370
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i have not been able to get photo to show except for the way they are with ImJohn: (~
Jules changed it some time back and now all the photos i Post are small and you have to click them to see them.
personally i think it suck!
i hate have to to click on it to see it.
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Old 6th April 2008   #371
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she's coming together
nice!!!!!
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Old 7th April 2008   #372
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I don't know if you are a great collector, or a pack rat.

I love those old racks and heavy steel chasis.



-tINY

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Old 9th April 2008   #373
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OK I tweaked the IMG code option, (I dunno why it was on the off position.. )

Try now Lynn!

Pan 60, with a big forum you get a lot of attachments and a long term solution needed to be put in place. Thats why you have the thumbnails, at least it shrinks the photos for you..
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Old 9th April 2008   #374
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OK I tweaked the IMG code option, (I dunno why it was on the off position.. )

Try now Lynn!

Pan 60, with a big forum you get a lot of attachments and a long term solution needed to be put in place. Thats why you have the thumbnails, at least it shrinks the photos for you..
Big glorious color images. And the best part is, unlike attachments, they don't use up ANY GS bandwidth or server space.

Thanks, Jules.
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Old 9th April 2008   #375
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OK I tweaked the IMG code option, (I dunno why it was on the off position.. )
..

Thanks. but i had to post a new, edited photo of Ken Kesey's bus on every post I made April fool's day - instead of embedding an image of the same one...

Here is some vintage gear (look on his head)




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Old 9th April 2008   #376
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Anybody care to guess what these are?
pairs of faders

/Dave
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Old 17th April 2008   #377
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Vintec all vacuume tube console channel strip..!!!!

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Old 21st April 2008   #378
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Wow!
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Old 22nd April 2008   #379
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The desk above doubles as a room heater...

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Wow!
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Old 11th May 2008   #380
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Compressor
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Old 11th May 2008   #381
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Compressor
Nice!

Are 9-pin sockets current Chinese production?
Can you share design of PCBs for tube sockets?
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Old 11th May 2008   #382
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Nice!

Are 9-pin sockets current Chinese production?
Can you share design of PCBs for tube sockets?

I would if I could but someone else made it. Small quantity runs so I guess this would qualify as a boutique compressor.
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Old 30th June 2008   #383
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bump
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Old 7th July 2008   #384
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Fender Bassman: the classic, and the reissue

I recently did a head transfer/cabinet swap.

Here's a view of original-versus-reissue shots of the Fender Bassman.

The only "new" components in the classic 54-ish Bassman are two electrolytics. You can see the reissues' PCB and such.

Both the owner and I think the original Bassman sounds better than the reissue.

I put the original head unit into the reissues cabinet, because the old cab is literally falling apart, and had some major resonance/vibration problems. Even with the new cab and reissue Jensens, the old head still sounds better.
Attached Thumbnails
The GUTZ-bassman-orig.jpg   The GUTZ-bassman-reissue.jpg  
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Old 7th July 2008   #385
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Up close:
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Old 7th July 2008   #386
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Up close:
I would put a grounded AC cord on the old one to keep someone from getting the crap shocked out of them...
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Old 7th July 2008   #387
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I'll pass that on, would it require a great deal of modification?

You know the owner, btw.
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Old 9th July 2008   #388
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No mods at all, the only problem for the guy with no or minimum tools maybe the problem of the new cable requiring a grommet and strain relief. I never reuse the old plastic grommet
Performed this upgrade this past weekend on an old Ampeg head.
The ground wire connects to the chassis, the black/hot connects to the switch/fuse leg, white/neutral connects to the power transformer.
If it contains the ground switch like the Ampeg did you disconnect it completely..
Leave the switch in the hole or cover it, your choice.
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Old 9th July 2008   #389
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Thanks Mike. The ground switch is there, and the plug is 2 prong. The consequence to switching to 3 prong is the elimination of the ground lift switch then?

What would opening the neutral wire do in the 3 prong scheme? Put the 120 across that open? If the neutral wire is already connected to the chassis, would I need to find it and disconnect it also to implement the 3 prong scheme?

I ask because we've been fond of using the ground switch to eliminate/reduce hum with guitars.

I'm sure my ignorance is showing on this one, but I'm kinda playing on-site studio tech.

I've read that in three prong modern systems, the neutral wire is connected to earth back at the main breaker terminal, so I guess that a neutral short to chassis, the neutral being shorted to earth ground at the main breaker, would create a ground loop between the neutral/chassis and ground, and possibly in the operator touching the chassis and standing on earth ground.
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Old 9th July 2008   #390
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It is not a ground lift in the real use of the word.
Lifting the AC ground on a tube amp is a very bad idea, you lift the audio ground different ways.
I would always prefer the AC ground to be connected if possible...
But it is NOT allowed by NEC to use the neutral as a ground, yes it is connected at the main panel at one point and ONLY at one point, either at the meter panel or the main disconnect, but not at both and no where else.
This creates a parallel neutral current path, a bad idea.
NEC 250.
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