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wohali / x1e.md
Created January 5, 2019 06:44
ThinkPad X1 Extreme with Debian 9 Settings

fix console font (bigger)

sudo dpkg-reconfigure console-setup
sudo setupcon

fix grub font size

Changes in the VCO153 circuit

  • Freq input

    • R65 added
    • R20 changed 150k -> 249k
    • R23 changed 2M2 -> 3M3
  • PWM

    • R64 added (to limit range to 50%-90%...helps with DC offset a little)
  • PWM LVL pot in series with PWM In

MXV11-B2 Y3.0
General syntax is
[CSR] command [UNIT]
[CSR] is optional (octal) - see manual for default
[UNIT] is optional (octal) - 0 is default
Command is one of -
@wohali
wohali / DYV4DS.DOC
Last active September 1, 2019 03:59
.TYPE DU1:DYV4DS.DOC
! COMMAND AND DOCUMENTATION FILE TO UPDATE THE DISTRIBUTION RT11-V4 HANDLER
! DYV4DS.DOC 30-DEC-80 880 VERSION
! THIS FILE BOTH DOCUMENTS THE PROCEDURE AND CONTAINS THE COMMANDS
! REQUIRED TO MODIFY THE DEC RT11-V4 RX02 HANDLER TO SUPPORT DOUBLE
! SIDED OPERATION.
!
! SETUP FOR DUAL FLOPPY SYSTEM
! ----- --- ---- ------ ------
@wohali
wohali / sizes.md
Last active September 1, 2019 23:25
DEC 8" Floppy Sizes
Drive Type Diskette type RT-11 Blocks (512b) Image size (bytes)
RX01 SSSD 494 blocks 252928 bytes
RX02 SSDD 988 blocks 505856 bytes
RX03 DSDD 1976 blocks 1011712 bytes
@wohali
wohali / used-synth-prices-aug-1994.txt
Last active March 2, 2020 16:42
Used Gear Price List (USA) from August 1994
From afo@wal.hp.com Tue Aug 30 15:39:57 EDT 1994
Article: 8609 of rec.music.makers.marketplace
Newsgroups: rec.music.makers.marketplace,rec.music.makers.synth,rec.music.makers
Path: yale!yale.edu!spool.mu.edu!howland.reston.ans.net!vixen.cso.uiuc.edu!sdd.hp.com!apol
lo.hp.com!netnews
From: afo@wal.hp.com (Aaron Oppenheimer)
Subject: USED GEAR PRICE LIST (USA)
Sender: usenet@apollo.hp.com (Usenet News)
Message-ID: <AFO.94Aug30135042@hpwargd.wal.hp.com>
Date: Tue, 30 Aug 1994 17:50:42 GMT
@wohali
wohali / exploder-cap-list.txt
Created June 16, 2020 03:17
TI Explorer PS capacitor list
This probably includes extra caps...I also ordered a pile of new tantalums that aren't included here,
standard 0.1u@35V and 1u@50V
Qty Digikey P/N MFR P/N Description
==================================================================================
1 338-3802-ND SLP682M035A7P3 CAP ALUM 6800UF 20% 35V SNAP
1 399-7488-ND PME271M660KR30 CAP FILM 0.6UF 10% 275VAC RADIAL
4 493-7094-ND LGN2E681MELA40 CAP ALUM 680UF 20% 250V SNAP
3 493-8579-ND LGY1C822MELZ30 CAP ALUM 8200UF 20% 16V SNAP
2 493-15720-ND UPM1E102MHD6 CAP ALUM 1000UF 20% 25V RADIAL
@wohali
wohali / pg&e-hooks-info.txt
Last active November 14, 2020 21:21
PG&E C-hooks interpretation by an actual hydrometallurgist
The transposing of the lines are from right to left, left to middle and
middle to right (camera-side to far-side). The failed one is on "from right
to left". The wear pattern (picture with red parallel lines) tells me that
the C-hook is not made of cast iron but made of cast steel because cast iron
is hard and strong but it is so brittle that when it breaks, it will go in
one clear break (full face) and not in the pattern as seen
(wear-wear-wear-then tear-off). This hook is on very light duty since it
only needs to support itself (insulation included) and the loose short
transposing line and not the tower-to-tower line (hence the one-inch size).
My guess is that there was a small crack on the inside-side of C as
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@wohali
wohali / couchdb-downloads-2020.md
Last active March 28, 2021 18:57
CouchDB download statistics for April 2020 - April 2021

CouchDB downloads, Apr 1 2020 - Apr 1 2021

platform # of DLs (approx) # of DLs in 2019 (approx) comments
Docker 70.5m + 19m = 89.5m 60.4m + 6.7m = 67.1m See notes
Windows 72k 100k 75% 3.x, 25% 2.x. Extrapolated from 253d of data
deb (Debian / Ubuntu) 65k 65k 76% are 3.x, 24% are 2.x
rpm (CentOS / RedHat) 63k 40k 69% are 2.x, 31% are 3.x
source .tar.gz 11.6k 38k extrapolated from 10 days of data; primarily 3.1.1
Mac 18k 25k 67% 3.x, 32% 2.x. Extrapolated from 253d of data