#garfield Logs

Jul 09 2020

01:13 PM polprog: rue_bed: so the guy i met today
01:19 PM polprog: friend's dad
01:19 PM polprog: he's an MFP service tech and his shop is full of MFP parts
01:19 PM polprog: like, business grade printers
01:19 PM polprog: he's got loads of this stuff and nothing to do with it, another guy took away 1.5m-long metal pair of sliding rails on which the paper trays slide out
01:19 PM polprog: he told us to just say if we want anything
01:19 PM polprog: ive had a box of printer cogwheels but i dont recall if any were metal
01:19 PM polprog: there are clutches, optointerruptors you name it
01:20 PM polprog: on my way back from the station i saw a black laser printer in the bush..
01:21 PM polprog: not sure if i want to go get it
03:06 PM polprog: ok, i made the cap tester
03:06 PM polprog: used the 50% duty source i posted earlier
04:13 PM polprog: well, it works okay
04:13 PM polprog: but i cant detect any bad caps apart from a supercap i unsoldered...
04:13 PM polprog: and the noise on breadboard is back
04:13 PM polprog: ill have to put this together on a PCB. Ive got the banana plugs
04:14 PM Tom_L: any serious project needs a PCB
04:15 PM Tom_L: speaking of projects. i need a mill project...
04:19 PM polprog: ive got like 5 prjects, do you want one
04:19 PM polprog: :P
04:22 PM polprog: https://i.ibb.co/FDLTn1q/IMG-20200709-231041.jpg
04:22 PM polprog: i need to measure the rise/fall time of the BC327/BC337 pair more precisely
04:22 PM polprog: ive got a bag of either kind so this might be useful information
10:17 PM rue_mohr: polprog, good show!
10:17 PM rue_mohr: but I think there is supposed to be aseries cap in there
10:18 PM rue_mohr: polprog, your oopsed
10:18 PM rue_mohr: see the - side of the tester is supposed to be in a cap divider
10:18 PM rue_mohr: http://ruemohr.org/~ircjunk/circuits/captester.jpg
10:22 PM * Tom_L wonders if rue_mohr is ever gonna get a letter
10:31 PM rue_mohr: did I check today?
10:31 PM rue_mohr: hmm I should
10:59 PM rue_mohr: oh yea
11:02 PM Tom_L: ?
11:04 PM rue_mohr: its here!
11:05 PM Tom_L: so letter is no faster than any package it seems
11:05 PM rue_mohr: nice card stock
11:05 PM Tom_L: leftover from something
11:06 PM rue_mohr: right order of magnitude...
11:08 PM rue_shop1: !! outside is ok!
11:08 PM rue_shop1: inside is ok!!!
11:08 PM rue_shop1: hey! maybe my cad was good!?
11:09 PM rue_shop1: want pics!?
11:15 PM rue_shop1: so, its a bosch PS50 vibration saw, try a few on ebay if your borred!