gar381

525 build thread
« Reply #20 on: May 31, 2007, 08:57:57 PM »
Peter

What is the size of the transformer cutout on the PCB??

David Geren at Cinemag says maybe the CMOQ-3S might fit
as its smaller than their 2503 replacement (CMOQ-2).

The CMOQ-3S looks like it requires a 32mm X 28mm hole.

These transformers are $25.55 USD each. Much cheaper than the
Sowter 9935 and easer to find than the ap2623.

Ed..... I'm also interested to see what you come up with.  :thumb:

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


babyhead

525 build thread
« Reply #21 on: June 01, 2007, 01:25:25 AM »
I have a question about this schematic...

Why is there no capacitor or load isolator after A2?

It is either that the 2623 is DC capable or the DC output of the 2520 negligible. Or maybe something I'm missing...

Thank you.

525 build thread
« Reply #22 on: June 01, 2007, 04:01:44 AM »
Quote from: "gar381"
Peter

What is the size of the transformer cutout on the PCB??


GARY


Tis 1.1" x 0.9"
http://www.lazpro.com
I reserve the right to not sell to idiots

525 build thread
« Reply #23 on: June 01, 2007, 04:05:13 AM »
Quote from: "babyhead"

It is either that the 2623 is DC capable or the DC output of the 2520 negligible.


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

525 build thread
« Reply #24 on: June 01, 2007, 04:48:47 AM »
Mr. Ed Anderson of Brooklyn, come on down.

Good stuff Ed. Nice to have options.

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

gar381

525 build thread
« Reply #25 on: June 01, 2007, 10:48:40 AM »
Thanks for the info Peter :thumb:

sounds like the Cinemag CMOQ-3S  is to big :?


Quote from: "peter purpose"
Mr. Ed Anderson of Brooklyn, come on down.

Good stuff Ed. Nice to have options.

peter


Thanks for working on this Ed :thumb:  :guinness:  :sam:

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

mata_haze

525 build thread
« Reply #26 on: June 04, 2007, 08:38:55 PM »
Sorry guys for the silly question but:

what is the POT called RATT (10K) going to do?
on the original schemo it's underlined and therefore it should appear on the front panel,but it's not.
on the other hand it's on the new boards designed by Peter.

can anyone spread some light on this please?

many thanks.

shabtek

ratt
« Reply #27 on: June 05, 2007, 07:04:10 AM »
resistance attack
"really fine players do not use stomp boxes or master volume, they match the amp to the room and turn it up to 11.  Stevie Ray, BB King, Albert King, Duane Allman, Dicky Betts, Louis Armstrong"
   -CJ

mata_haze

525 build thread
« Reply #28 on: June 05, 2007, 06:40:33 PM »
Quote from: "shabtek"
resistance attack


 :roll:  sorry,what would that do? I mean what sort of control would that be? I cannot see it on the original unit,
 does any of you know why?

Best,
Mattia.

525 build thread
« Reply #29 on: June 06, 2007, 06:11:27 AM »
It varies the attack time.
http://www.lazpro.com
I reserve the right to not sell to idiots


mata_haze

525 build thread
« Reply #30 on: June 06, 2007, 02:11:42 PM »
Quote from: "peter purpose"
It varies the attack time.


thanks!

525 build thread
« Reply #31 on: June 08, 2007, 06:30:56 AM »
For the boys who bought kits only.....

I just started to put one together and the small switch pcbs are going to need the mounting holes elongating by about 3mm.
This will allow the pcbs to sit between the face and main pcb.
Tis dem pesky little brackets again..!!
Either that or make some little brackets up yourselves.

Well, I couldn't make it too bloody easy for you.

pedro

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

Kid Squid

525 build thread
« Reply #32 on: June 08, 2007, 06:35:49 AM »
Oi Oi big daddy P,

got the boards, and they look WICKED  :grin:

 :thumb:
It is not the same as 4+12, nor is it the same as 4+8, but 4+12 IS the same as 4+8+12....

http://www.facebook.com/LazyLizardLabs

525 build thread
« Reply #33 on: June 08, 2007, 06:38:53 AM »
:thumb:
http://www.lazpro.com
I reserve the right to not sell to idiots

louder

525 build thread
« Reply #34 on: June 09, 2007, 07:25:01 PM »
Hi Peter
just starting this project,let me ask you this:
in your bom,in the cap section,you have(what i used).
why?
because it was a improvement to the circuit,or because was what you had at hand?.
another:
rl1/rl2 led dependent.what`s this?.i`m ashamed to ask.
best regards
pedro

525 build thread
« Reply #35 on: June 10, 2007, 06:05:50 AM »
<<because it was a improvement to the circuit,or because was what you had at hand?. >>

Bit of both really.  

<<rl1/rl2 led dependent.what`s this?.i`m ashamed to ask. >>

Don't be.  
The in/bypass switch has provision for a tricolour led. Use whatever floats your boat to get the desired brightness.

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

Reptil

    Utereg; statsie woar (Hollanda)
  • Posts: 62
525 build thread
« Reply #36 on: June 11, 2007, 10:55:55 AM »
:grin: parts hunting time...
any preference towards specific capacitors? (brand, type)
Panasonics too clean? (hope to turn this 525 into a personality)
There are no rules.

525 build thread
« Reply #37 on: June 12, 2007, 07:36:36 AM »
Not being a cap snob and lacking the lug holes to tell the difference, I shove whatever I have in there.

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

BladeSG

525 build thread
« Reply #38 on: June 12, 2007, 08:14:31 AM »
Quote from: "peter purpose"
<<because it was a improvement to the circuit,or because was what you had at hand?. >>

Bit of both really.  

peter


Are those 50V caps necessary @ C15 + C16?

Will 25V caps work there or is the extra voltage handling part of an improvement in addition to going from 10uF to 220uF?

Truth is I have sh*tloads of FC 220/25v caps I can use here :wink:

525 build thread
« Reply #39 on: June 12, 2007, 08:34:53 AM »
25 volters will work fine in there, but check pin spacing.
http://www.lazpro.com
I reserve the right to not sell to idiots


 

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