Reptil

    Utereg; statsie woar (Hollanda)
  • Posts: 62
525 build thread
« Reply #40 on: June 12, 2007, 12:17:42 PM »
localised some ROE caps. Are these too old? I find them all over my old german stuff.

then, is this still on?
Quote from: "rascalseven"
Ahhhh..... got it, T, makes sense.  I missed that.

That'd be cool too.

BTW, is anyone familiar with this manufacturer?  http://www.handlesunlimited.com/knobs.html  (check out the bottom three styles....  Look familiar???)

 :shock:  :shock:  :shock:  :shock:

They are apparently available in black anodized as well as natural aluminum.  How cool would black anodized be for a DIY 525 (or 553, 312, etc...)???

Can you spell G-R-O-U-P B-U-Y ???  

 :thumb:

JC
There are no rules.


SSLtech

525 build thread
« Reply #41 on: June 12, 2007, 12:20:44 PM »
Quote from: "peter purpose"
Not being a cap snob and lacking the lug holes to tell the difference, I shove whatever I have in there.

Nominated for best post of 2007.

Gawd bless ya Pete.

Keef
"A waist is a terrible thing to mind"
Quote from: PRR
Ah, but that was 1999; we don't party like that any more.

525 build thread
« Reply #42 on: June 12, 2007, 03:43:50 PM »
Quote from: "SSLtech"
Gawd bless ya Pete.

Keef


Gawd bless you n yorn.
http://www.lazpro.com
I reserve the right to not sell to idiots

525 build thread
« Reply #43 on: June 12, 2007, 03:51:59 PM »
OOPS....

Due to my being a stupid bastard, I sent the wrong file to fab.

The upright op amp needs a teeny weeny mod.



Leave a leg long on C1 and take it to the base of Q4.

Sorry about that chaps.

peter
http://www.lazpro.com
I reserve the right to not sell to idiots

525 build thread
« Reply #44 on: June 14, 2007, 06:43:20 PM »
Possible mod?
Would it make sense to put a 75R resistor at each of these points to stop the output of A1 shorting to ground when pots are at FCCW?



http://www.lazpro.com
I reserve the right to not sell to idiots

SSLtech

525 build thread
« Reply #45 on: June 14, 2007, 10:15:25 PM »
No. The output only sees 1kΩ to ground, not a short.

Keith
"A waist is a terrible thing to mind"
Quote from: PRR
Ah, but that was 1999; we don't party like that any more.

Reptil

    Utereg; statsie woar (Hollanda)
  • Posts: 62
525 build thread
« Reply #46 on: June 14, 2007, 10:16:20 PM »
Quote from: "SSLtech"
Quote from: "peter purpose"
Not being a cap snob and lacking the lug holes to tell the difference, I shove whatever I have in there.

Nominated for best post of 2007.

Gawd bless ya Pete.

Keef


fair enough LOL

btw.. RS Components carries the edge connectors.
(the only one afaik over here)

also found some flat, white leds (through the x0xb0x kit).
maybe I can persuade them to fit. that would be neat.
There are no rules.

Jim50hertz

525 build thread
« Reply #47 on: June 15, 2007, 04:42:51 AM »
Quote from: "Reptil"

btw.. RS Components carries the edge connectors.
(the only one afaik over here)


Any chance of posting the part no.?

Cheers

Jim
"Nasty, talking to a slightly deaf journalist, had claimed only that the Rutles were bigger than Rod."

Reptil

    Utereg; statsie woar (Hollanda)
  • Posts: 62
525 build thread
« Reply #48 on: June 15, 2007, 06:34:10 AM »
have to dive into the pile of papers in the corner of the room  :shock:
give me a moment please... couldn't find the email...too. mmmm
and the laserprinter crapped out, and came back on... not one of my best day
hold on please..
 :green:
There are no rules.

Reptil

    Utereg; statsie woar (Hollanda)
  • Posts: 62
525 build thread
« Reply #49 on: June 15, 2007, 06:36:29 AM »
on the connector itself... cinch  252 15 30 240
and 50 15B-10 and small print 09 75
is that sufficient?
There are no rules.


Walrus

525 build thread
« Reply #50 on: June 15, 2007, 07:44:30 AM »
Unfortunately RS only seem to do stock number 483-865 now, which is an 18 way connector. It is the correct pitch but will have to be cut down.
Kevin.

Reptil

    Utereg; statsie woar (Hollanda)
  • Posts: 62
525 build thread
« Reply #51 on: June 15, 2007, 08:07:40 AM »
yeah, better contact them.
I did, and they could get me the right connectors, probably they had them sent over from a US stock. I had to be persistent.  :wink:
There are no rules.

525 build thread
« Reply #52 on: June 15, 2007, 08:34:40 AM »
Quote from: "SSLtech"
No. The output only sees 1kΩ to ground, not a short.

Keith


Cheers Keef.

Must engage brain before opening mouth.
http://www.lazpro.com
I reserve the right to not sell to idiots

525 build thread
« Reply #53 on: June 15, 2007, 10:02:38 AM »
I've just scanned the original schematic for a better view.
Things have changed, but I'm not going to go through all that again.

http://www.twin-x.com/groupdiy/albums/userpics/525.jpg

peter
http://www.lazpro.com
I reserve the right to not sell to idiots

gar381

525 build thread
« Reply #54 on: June 15, 2007, 10:31:23 AM »
the Edge connecter I use on all my api/melcor cards are:

EDAC 306-015-500-102

This connecter seems to fit Peter's PCB as well.

Digikey # EDC306150-ND


Mouser # 587-306-50-015

GARY
RETIRED.....  from 51yrs in Show Biz

gar2520, gar1731,garAM10,gar918 DOAs at  http://capi-gear.com/catalog/index.php?cPath=71_72
NEW Sphere section  http://gar381interests.com/gar381interests.html

525 build thread
« Reply #55 on: June 15, 2007, 10:38:17 AM »
Quote from: "gar381"
This connecter seems to fit Peter's PCB as well.

GARY


Would you Adam & Eve it..!!
http://www.lazpro.com
I reserve the right to not sell to idiots

capnspoony

525 build thread
« Reply #56 on: June 15, 2007, 11:03:23 AM »
Im chompin at the bit for these kits.  I was wondering if anyone else was planning on using Ptowns 990 kits for the DOA's.   I checked the 990 threads but it seemed that a lot of people were having a lot of problems getting their DOA's up and running.  Now that I have 24 kits-- I'm a little concerned that my skills may not be up to par.  

--Richie
defender of the ancients

Rob Flinn

525 build thread
« Reply #57 on: June 15, 2007, 11:56:40 AM »
Quote from: "Walrus"
Unfortunately RS only seem to do stock number 483-865 now, which is an 18 way connector. It is the correct pitch but will have to be cut down.


Why not just stuff a bit of old pcb in it to blank off the unused pins.
regards Rob

525 build thread
« Reply #58 on: June 15, 2007, 12:11:31 PM »
Jayzus... someone in the USA sort it out for these poor brethren.
http://www.lazpro.com
I reserve the right to not sell to idiots

Reptil

    Utereg; statsie woar (Hollanda)
  • Posts: 62
525 build thread
« Reply #59 on: June 15, 2007, 08:16:05 PM »
I found it through www.mercateo.com. RS Components is their reseller in Holland. So, since Mercateo didn't want to ship, I asked RS Components.
Article number is: 108EL-2508740065
Hope this helps.
There are no rules.


 

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