(non-serpent related files to shared with the public are located on links from this page)
Truncated Cone Calculator (Excel 2003-format spreadsheet with
formulas)
truncone_calculator
Tuba gig bag details sketch
Tuba_gig_bag_details
Bell gig bag details sketch
Bell_bag_details
Truncated cone calculator example 1
Truncated_Cone_
calculator-25J
bell main flare
Truncated cone calculator example 2
Truncated_Cone_calculator-25J
bell
ring flare
Lee Hart's VIP2k keyboard overlay
VIP2k keyboard overlay
Single Board Relay Computer-Digikey BOM
Relay_Computer_BOM_edited_for_Digikey
Single Board Relay Computer-Programming
Form
Relay_Computer-Programming_Form
Single Board Relay Computer-Front Panel
Express keycap labels
Relay_Computer_PB_labels-yellow_functions
Single Board Relay Computer-Front Panel
Express keycap labels-PDF
Relay_Computer_PB_labels-yellow_functions
Single Board Relay Computer-Front Panel Express keycap
labels-Instructions
Relay_Computer_PB_labels-yellow_functions
"Blinkenlights"
random LED flasher using CDP1802
Blinkenlights
description & schematic
EZM Electronics Studio
ESR-2501C ESR
Meter Users Manual
ESR-2501C ESR Meter
Quick Guide Label
JYETech DSO digital storage oscilloscope
Manual
JYETech DSO digital
storage oscilloscope Manual
HA-PRO2 Headphone Amplifier PCB Layout and
Schematic
HA-PRO2 PCB Layout
HA-PRO2 Schematic
TC-780LC Stereo Line Level Preamp/Booster
Schematic
(the brand is variously JEC or TEC or TCC)
TC-780LC Schematic
Elikliv DM9 Digital Microscope (and similar under other brands)
Elikliv DM9 Digital Microscope
Enhanced Manual
Simpson 260-1 (260 Series 1)
Simpson 260-1 Schematic
Simpson 260-1
Eveready 750 'A' cell pack labels for 'AA' cells
Simpson 260-1 Eveready 'C'
cell labels
Simpson 260-1
Burgess 422 'A' cell pack labels for 'AA' cells
Simpson 260-1 Burgess No 1
'C' cell labels
Instructions for
using the above retro battery labels
ART "Phantom II Pro" dual channel phantom
power supply: replacement 3D printable battery holder
9V_battery_holder_Instructions
9V_battery_holder_STL_file
9V_battery_holder-rear_spacer_STL_file
Weston/Schlumberger Vintage Test Equipment
Schematics
1240 Nixie Digital Multimeter
Schematic
Heathkit Vintage Test Equipment Schematics
C-3 Condenser (Capacitor)
Checker Schematic
IG-18/IG-5218 Sine-Square
Audio Generator Schematic
IN-3147 Capacitor
Substitution Box Schematic
DC-1 Decade Capacitance
(Condenser) Box Schematic
DR-1/RD-1 Decade Resistance
Box Schematic
IB-1101 Frequency Counter
Schematic
IB-1101 Frequency
Counter 3D Printable Light Shield
IM-16 Solid State
Voltmeter Schematic
IM-18 VTVM Schematic
IM-25 Solid State VOM
Schematic
IM-25/16
Solid State VOM battery eliminator
IM-25/16
Solid State VOM battery eliminator PCB
IM-1202 Nixie VOM
Schematic
IM-1210 LED VOM Schematic
IM-1212 Nixie VOM
Schematic
IM-102 Nixie Digital
Multimeter Schematic
IM-102
Nixie Digital Multimeter Ohms Function Description
IM-102
Nixie Digital Multimeter Partial Logic Description
IM-102 Nixie
Digital Multimeter Circuit Theory Sketches
IM-102
Nixie Digital Multimeter 3D Printable Light Shield
IM-102 Nixie Digital
Multimeter Replacement Brand/Model Strip
IM-105
& Weston 660 Schematic & Servicing
M-1 Handitester VOM Schematic
MM-1 VOM Schematic
IP-28 Power Supply
Schematic
IP-2718 Power Supply
Schematic
IP-20 Power Supply
Schematic
IP-27 Power Supply
Schematic
IP-18 &
IP-2728 Power Supply Schematic
IB-1/IB-1A/IB-1B Impedance
Bridge Schematic
Copyright Paul Schmidt 2024