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Messages - addshoe

#16
General Questions / Re: Identifying chips
February 04, 2013, 12:15:31 PM
I will heed the advice on that ICs.

I totally forgot to mention transistors! There are a lot of em on the boards. Found a handful of 2N... forgot the code... there are also a number of them that have no code on the back. Did a little google searching but haven't come up with any matches yet. I will post a list of these later.

#17
General Questions / Re: Identifying chips
February 04, 2013, 08:24:43 AM
UPDATE:

So far I have pulled a lot of those LM4558 chips off the boards, around 15. PM me if anyone wants. I found this to help identify the ones I remove as I go in addition to the link provided above:

551-009-00   (4558 op amp)
551-025-00   (CA3080 OTA)
551-033-00   (4001 NOR gate)
551-034-00   (MC14071BCP OR gate)
551-038-00   (4013 dual F/F)
551-044-00   (MC1455 Timer)
551-052-00   (MC14520 Divider)
551-054-00   (MC14069 Hex inverter)
552-003-00   (AMI C10541/ Mostek MK50240N TOS)
552-022-00   (AMI C2781 Sustain Keyer)
522-024-00   (AMI C22083 Chord/Rhythm processor)

Any more of these useful?

There are of course lots, like 1000s, of resistors, diodes and caps. The caps may be usable but the diodes and resistors are so tight to the board when removed there is not much lead left to make the usable without soldering some extra lead onto them.

I have some pictures of the boards that I will upload and post this evening when I get home.
#18
General Questions / Re: Identifying chips
February 02, 2013, 01:35:20 PM
That's a good resource, thanks for the link!

I'll post up what I pull off the boards in the near future and distribute the wealth if anyone is interested in some oldie parts, I know I don't need em all!

Thanks again!
#19
General Questions / Identifying chips
February 02, 2013, 08:57:27 AM
I recently gutted an old organ for parts and there are a lot of chips that I am curious if they are worth salvaging or just destined for the scrap heap.

Couple I just pulled off the boards:

8 pin 551-009 7742
14 pin 551-034-00 7815

I did some searching and only come up with where they are used in the organ I got them from with little information. Any tips on IDing these as I pull them would be awesome! If they are useful to anyone I would be willing to part with some too :)

Thanks!
#20
Mods / Re: UV LEDs
February 01, 2013, 07:05:37 AM
For a grow light you need something like this...

http://www.ledsupply.com/creexrc-r.php

Spectrum is very important when building an LED grow light. Red is good with this type of LED. These are similar to what you would find in the production LED grow lamps and coral aquarium LED lights. Simple two lead LEDs like we use for pedals are just not powerful enough, even the giant ones.

Don't ask how I know  ;)
#21
Tech Help - Projects Page / Re: Pig Mine Vero Build
January 23, 2013, 05:15:52 AM
Thanks for the reply lincolnic. I definitely have those wired up correctly but something has to be off. I need to go over everything tonight and see where I am losing signal I guess.

Thanks again
#22
Tech Help - Projects Page / Re: Pig Mine Vero Build
January 22, 2013, 02:51:53 PM
Small update...hooked up an audio probe to do some troubleshooting right after work and am finding tone at the ground, always fun! Have some wiring to look over and make sure that is all good.

No bridges thankfully.

Did use this to wire the switch...
http://gaussmarkov.net/wordpress/thoughts/wiring-up-a-1590b/

Is there anything off about this? My only confusion is what would the output wire from the stomp switch go to? I have it running to the volume3 currently, is this way off?

Thanks again!
#23
Tech Help - Projects Page / Pig Mine Vero Build
January 21, 2013, 07:36:35 PM
Just finished wiring up the Skreddy Pig Mine vero build from tagboardeffects.com and am getting no sound. I started checking for signal at various points and am getting nothing at the volume pot at all. Have signal at the tone but am not sure where to go from here to troubleshoot. Anyone built this before and able to help do some troubleshooting?

http://tagboardeffects.blogspot.com/2012/02/skreddy-pig-mine.html

Thanks for any assistance!
#24
Open Discussion / Re: Re: Stocking the bench
January 21, 2013, 10:51:47 AM
Quote from: stevie1556 on January 17, 2013, 09:09:56 AM
As above, buy some storage containers. I can't stress enough just how helpful they are for keeping things organised!

Here are my ones, soon to get a 5th one I think:



Sent from my thumbs using Tapatalk!

Nice setup! I will have to invest in some organizers. I have my small collection of parts in a tackle box right now but that filled up fast.

Thanks for all the pointers on vendors gang, looking forward to stocking up here soon!
#25
Open Discussion / Re: Stocking the bench
January 17, 2013, 06:59:14 AM
Good advice, thanks raulduke.

I will definitely heed the hoarder warning, I could see my bench becoming covered in parts I really don't need but just stack up crazily!
#26
Open Discussion / Stocking the bench
January 17, 2013, 06:32:35 AM
I have been making boards for a while now but always buy parts as I go. Of course I have amassed a small collection of pieces but not much. How do you guys go about stocking your bench? I have seen lots for sale on eBay but am leery that this would be a bunch of junk not worth storing.

Thanks!