Posting Pics on "Guitarsite"

1bassleft · Posted: Sat Oct 08, 2005 1:07 pm Post subject:

Hello Owen,

Here is a picture of the spaghetti side of the Laney Super PA:

There are also pics on a useful site, House-of-Jim; http://members.shaw.ca/house-of-jim/Html/Laney.html. Although my amp just shows up as "x" boxes, you can still click on them and they will appear in a new window. The featured Supergroup is very similar, as far as the power section goes, so you might find this site useful anyway. Also, you can send me a private message with your email address and I can send you the original jpeg so that you can zoom in. I'm afraid the camera was a 1megapixel job, so only a limited number of zooms will be of use.

Your amp is as standard (BTW, the funny looking silver box near my inputs is just some shielding around the FX send/return), with the six input ECC83s, another ECC83 as mixer and the original ECC82 as the phase inverter. The previous owner replaced it with an 83 and, although I have a number of 82s around, I replaced it with an 83 I had which I knew to have balanced triodes.

As the PI is not part of the gain circuit, exchanging the 82 for an 83 makes no difference in output. The 82 should 'tighten up' the sound and I really ought to put one back in as I use it for bass. For a guitar player, the 83 might make it less controlled and clean-sounding, and this might be preferred by the individual.

doompixie · Joined: 08 Oct 2005 Posts: 5

Hi again, the layout of the blue power supply caps on your super pa looks diffrent to mine, pretty sure mine has two rows of caps. i will have a look when i get home but i dont have internet at home so it might be a few days before i can post again. Infact i seem to remember my amp haveing a seperate board for the power supply caps and the rectifier diodes were in a straight line, i could be remembering wrong though, the two resistors i am talking about i cant actually see anywhere in that pic but i have a feeling they could be the two resistors that are going to the two caps in the bottom of the pic you posted. but i have a feeling mine are completely seperate and dont connect together at that side. i will have a look at that site and see if i can work it out. my email address is please-send-me@mail.com. if you could send me the original image i would apreciate it.
Thanks for your help,
Owen

lee_UK · Posted: Sat Oct 08, 2005 7:53 pm Post subject:

Some early Capacitors were Dual caps, they were 2 caps in 1 can, they had 3 terminals on them, they are hard to get hold of these days, and if you can get the right value they turn out to be 10 times more expensive, the solution is to use 2 caps to replace them. I had the caps on my 1973 HIWATT head replaced in this manner, probably not the answer but worth a mention.

1bassleft · Posted: Sat Oct 08, 2005 11:36 pm Post subject:

Owen, I've sent the pic as a jpeg attachment to an email. Hope this helps, but come back here if you need any more advice.

doompixie · Joined: 08 Oct 2005 Posts: 5

hey again,
thanks for your help, for some reason my computer won't open the file you sent me, it downloads it and then it just complains that the file is corrupt, i will get some images of my amp up soon as the circuit layout is slightly different on mine, it uses a single board for the entire amp instead of the two boards like yours has and there are a few other differences like mine has 8 of the larger power supply caps and they are in two rows of 4 instead of the single row of 6 that yours has. could you tell me the value or colour code of the two resistors that i have put in the red box on this image please? if not then no worries.
thank you for being so helpfull,
Owen

1bassleft · Posted: Mon Oct 10, 2005 10:53 pm Post subject:

Sorry Owen, your pic's not working either. I tried to paste the link into the "Img" function on the "post reply" but it didn't work out. Perhaps you can email it to me?

Michael · Posted: Mon Oct 10, 2005 10:57 pm Post subject:

Owen's most recent pic is working okay for me? maybe I'm looking at the wrong one?

1bassleft · Posted: Mon Oct 10, 2005 11:00 pm Post subject:

Hmmm, I'm just getting an "x" box and, when I click on it, imageshack's page for the pic refuses to load. Damned AOL.

Michael · Posted: Mon Oct 10, 2005 11:05 pm Post subject:

http://img292.imageshack.us/my.php?image=f7bdf29618aw.jpg any more luck? maybe empty your cache.

1bassleft · Posted: Mon Oct 10, 2005 11:31 pm Post subject:

That was my nan's cure-all - "empty your cache" Laughing

. No, I'd already gone into edit Owen's post and tried the links. No joy from yours, Mike, even after a reboot. Mike, if you can still see it, can you tell me what colours the bands are on the resistors Owen has marked on the pic?

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