#garfield Logs

Nov 07 2022

07:28 PM rue_mohr: the cast aluminum project box
07:38 PM rue_mohr: design slip, its a bit too small for a chinese protoboard
07:38 PM rue_mohr: wondering if I should design up another one
07:38 PM Tom_L: solution:
07:38 PM Tom_L: resize it
07:38 PM rue_mohr: I wonder how the casting sand is doing
07:38 PM rue_mohr: its been sitting to euqlaize for a while now
07:38 PM rue_mohr: I cant predict if its going to rain with the weather now
07:38 PM Tom_L: we got a bucket full one day last week
07:38 PM rue_mohr: the 1000L greenhouse tank is full
07:38 PM rue_mohr: like overflowing full
07:38 PM rue_mohr: from almost empty, that was like a week
07:38 PM Tom_L: need to fix the leaf blower
07:38 PM Tom_L: it bogged down and won't run right now
07:38 PM Tom_L: i think it's a fuel line
07:38 PM rue_mohr: you gonna blow the leaves around too
07:38 PM rue_mohr: ?
07:39 PM rue_mohr: oh, its installing other stuff
07:39 PM rue_mohr: hmm
07:39 PM rue_mohr: well, ok
07:39 PM Tom_L: i'm not going to take inventory
07:40 PM rue_mohr: hell no
07:40 PM rue_mohr: how much of all that is chips vs componenents?
07:40 PM rue_mohr: like 50/50?
07:40 PM rue_mohr: 10/80?
07:40 PM rue_mohr: :]
07:40 PM Tom_L: i dunno
07:41 PM rue_mohr: huh
07:41 PM rue_mohr: I was going thru some NOS capactitors I had
07:41 PM rue_mohr: some of them were SEVERLY leaking
07:41 PM rue_mohr: never used
07:41 PM rue_mohr: I thought they had to have a life to leak
07:42 PM rue_mohr: oh my, its 2c outside
07:43 PM rue_mohr: huh thermal distribution in the house indicates that all the hot air from my room races down to the kitchen
07:44 PM rue_mohr: but most important, the database still works
07:47 PM rue_mohr: Version of PHP not supported. Please upgrade to version 7.2 or later.
07:47 PM rue_mohr: well that was a waste of like 5minutes
07:48 PM rue_mohr: which is odd, cause it upgraded it to 7.4
07:49 PM rue_mohr: no easy databases today
07:49 PM rue_mohr: ok, I'll go back to the box problem
07:50 PM Tom_L: .
07:50 PM Tom_L: dammit rue!
07:50 PM rue_shop3: there we are
07:50 PM rue_shop3: 6.8cu in
07:51 PM rue_shop3: yep, your design is a bit small too
07:51 PM rue_shop3: hah
07:51 PM rue_shop3: what you doin?
07:51 PM rue_shop3: 8]
07:52 PM rue_shop3: all I have to do is cut two peices of metal and add 4 folds
07:52 PM rue_shop3: *sigh*
07:53 PM rue_shop3: ok idea
07:54 PM rue_shop3: I cut and fold one peice of metal and 3d print the rest
07:55 PM Tom_L: i'll bet you don't have any of these: http://tom-itx.no-ip.biz:81/~webpage/rue/electronics/electronics7.jpg
07:56 PM rue_shop3: ooooo
07:56 PM rue_shop3: isolators?
07:56 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/electronics/electronics4.jpg
07:56 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/electronics/electronics5.jpg
07:56 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/electronics/electronics6.jpg
07:56 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/electronics/electronics8.jpg
07:56 PM rue_shop3: arg my databook is back in the hosue again
07:56 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/rue/electronics/electronics9.jpg
07:56 PM Tom_L: rtl divider
07:57 PM rue_shop3: {drool droll}
07:57 PM Tom_L: one box
07:57 PM Tom_L: i'm not going thru any more
07:57 PM rue_shop3: so, its mostly semis
07:57 PM Tom_L: buttons, wire contacts, diodes, transistors, bulbs, ic,.....
07:58 PM Tom_L: caps
07:58 PM Tom_L: fuses
07:58 PM rue_shop3: ooo I bet some of those are UJTs
07:59 PM rue_shop3: do the part numbers for the device they were for?
07:59 PM Tom_L: they are mfg pn yes
07:59 PM rue_shop3: ok, I need to fix my thought->sentence compiler
07:59 PM Tom_L: not industry
07:59 PM rue_shop3: yea
07:59 PM Tom_L: i had a cross book once but it's gone
08:01 PM Tom_L: https://web.archive.org/web/20180419185320/http:/www.organservice.com/
08:01 PM Tom_L: https://web.archive.org/web/20180419185320/http:/www.organservice.com/
08:01 PM Tom_L: mmmm
08:02 PM Tom_L: https://web.archive.org/web/20180419185320/http:/www.organservice.com/
08:02 PM Tom_L: god dam it
08:02 PM Tom_L: it won't link
08:02 PM rue_shop3: heh
08:03 PM Tom_L: alot of numbers cross there
08:03 PM Tom_L: alot of ic are custom
08:03 PM Tom_L: like i said before
08:03 PM rue_shop3: yep
08:03 PM Tom_L: most power transistors were darlington
08:04 PM rue_shop3: looks like NTE crosses them
08:04 PM Tom_L: 992-026028-000 Transistor: MJ901 PNP Power Darlington 11.90
08:04 PM Tom_L: 992-026039-001 Transistor: MJ1001 NPN Pwr. Darl.- Use 992-026039-002 11.90
08:04 PM Tom_L: 992-026039-002 Transistor: MJ1001 NPN Power Darlington 11.90
08:04 PM Tom_L: 992-026040-001 Transistor: MJ901 PNP Power Darl. - Use 991-026040-002 11.90
08:04 PM Tom_L: 992-026040-002 Transistor: MJ901 PNP Power Darlington 11.90
08:04 PM Tom_L: 992-026646-000 Regulator: LM340-8T, 7808, +8v - Use 992-024149-005 3.60
08:04 PM rue_shop3: :)
08:05 PM Tom_L: 991-029867-001 IC: CD4066B CMOS 1.70
08:05 PM Tom_L: 991-029868-001 IC: CD4051B CMOS 2.40
08:05 PM Tom_L: 991-029869-001 IC: CD40103, CMOS 3.60
08:05 PM Tom_L: 991-029872-000 IC: ULN2004A, Array, 6-15v 16 pin CMOS 2.90
08:05 PM Tom_L: 991-029873-000 IC: UDN2982A Array 5-45v 18 pin CMOS 5.90
08:05 PM Tom_L: 991-029873-035 IC: UDN2983A, Array, 30-75v 18 pin TTL 5.90
08:05 PM rue_shop3: ooo those are PNP!!!
08:05 PM rue_shop3: thats hard to find
08:05 PM Tom_L: i dunno what's in the box but that's a conversion site
08:05 PM rue_shop3: I almost used all mine up doing a VFD screen driver
08:05 PM rue_shop3: it'd work the same
08:06 PM rue_shop3: I'm gonna go cut metal
08:06 PM Tom_L: i'm gonna go sit on my ass
08:07 PM Tom_L: you saw the 'bug' dividers i was talking about
08:07 PM Tom_L: those were a single divider
08:07 PM Tom_L: you could get a double too
08:08 PM rue_shop3: oof, its chilly out
08:08 PM Tom_L: doomed for the landfill
08:09 PM rue_shop3: cant pay ya to dump them all in a box for canada?
08:09 PM rue_shop3: maybe the semis
08:09 PM rue_shop3: sounds like a lot of stuff
08:09 PM rue_shop3: I have the NTE and ECG ref books
08:10 PM rue_shop3: a quick search brought up your part numbers, so I think I have the info
08:10 PM rue_shop3: I dont want to go out to bend the metal
08:10 PM rue_shop3: now I remember whuy I dont like winter
08:13 PM rue_shop3: that bending die for the hyd press is AWesome
08:14 PM rue_shop3: how you doing for temp and heat over there?
08:14 PM Tom_L: mild
08:15 PM Tom_L: chilly this am and maybe 70F pm
08:15 PM rue_shop3: 2c right now
08:15 PM rue_shop3: I dont have the house heat on
08:15 PM rue_shop3: little over 10c in most of the house
08:16 PM rue_shop3: snow is working its way down the mountian
08:16 PM Tom_L: once it gets there it will blow this way
08:20 PM rue_shop3: I need to build up a library of plastic standoffs for the 3d printer
08:21 PM rue_shop3: I managed to get the usb control connection working for the signal generator
08:22 PM Tom_L: one of those brands i used to have like 600 slider caps. they had a recall and kept sending me more and more and more plastic buttons like keyboard buttons
08:22 PM rue_shop3: seems I never finished the sofware for the usb control on the resistor box
08:22 PM rue_shop3: heh
08:22 PM Tom_L: another kept sending schematics for stuff i'd never ever work on
08:23 PM rue_shop3: heh
08:25 PM rue_shop3: over 600 designed objects in the directory
08:25 PM rue_shop3: I dont know what I called the pcb standoffs
08:25 PM Tom_L: pcb standoffs would have been a good name
08:25 PM rue_shop3: or even just standoff
08:26 PM rue_shop3: I dont think I desgined the ones I want anyhow
08:26 PM rue_shop3: its warm here, I'll do it up
08:27 PM rue_shop3: I made an L to sit the circuit board in, that I can bolt the power transistros to
08:27 PM rue_shop3: I'll 3d print a cover too
08:27 PM rue_shop3: it would be nice to have a box break
08:28 PM Tom_L: i have some sheetmetal pliers
08:28 PM Tom_L: https://www.amazon.com/Hurricane-Straight-Seamer-Ergonomic-Handle/dp/B07S6LBHCX/ref=sr_1_5?keywords=metal+bending+pliers&qid=1667874413&sr=8-5
08:30 PM Tom_L: i get those that are punched out like a pop can
08:31 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Boxes.jpg
08:32 PM Tom_L: that's what my pendant is in
08:38 PM aandrew: hm
08:38 PM aandrew: gotta try to figure out ferrite ui vs inductance coefficient
08:38 PM aandrew: different sizes of the same ferite ui have different coefficients
08:39 PM rue_mohr: thats why I do the K for that core
08:39 PM rue_mohr: wraps up all the deisgn stuff I dont care about the details of, but need to know the constant from
08:40 PM aandrew: sure but when trying to buy ferrite I have to understand this better :-)
08:40 PM rue_mohr: or do you
08:41 PM rue_mohr: if you know the amp-turns or volt-seconds or watts, its all in the tables
08:42 PM aandrew: well aliexpress lsitings are usually ui and AL
08:42 PM rue_mohr: yea, thats hard
08:43 PM rue_mohr: you want to get a sample first, but there are less than 1/1M odds of getting the same one later if you order more
09:51 PM rue_shop3: arg I forgot to phone ken
10:44 PM rue_mohr: on no, voices, I want to be awake tho
10:45 PM rue_mohr: the power converter for the lights only came out to 63% efficient
10:45 PM rue_mohr: sucks
10:45 PM rue_mohr: it'll do for now
10:45 PM rue_mohr: I'll work on a buck regulator or something later
10:47 PM rue_mohr: not had supper yet
10:47 PM rue_mohr: can I just skip it?
10:47 PM rue_mohr: not even 9pm
10:49 PM rue_mohr: I need to get better at power conversion