(non-serpent related files to be shared with the public are downloadable using links on this webpage)
2025 Honda Odyssey Mini-Van Flat Cargo
Floor Design Sketch
Cargo Floor
Design Sketch
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
Lee Hart's "1802 Badge"
1802 Badge Holder
1802 Badge
Character Set Diagram
Lee Hart's "Retro Binary Watch" 3D Printed
Case
RBW Case Instructions
RBW Case Body
RBW Normal Back
RBW Deep Back With Tab
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
TKXEC model
QH-VISG2-ED Voltage/Current Generator
TKXEC model QH-VISG2-ED Users Manual
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 Non-Test Equipment Documents
GC-1006 "Most
Reliable Clock" Quick Guide Label
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
IB-1102 Frequency Counter
Schematic
IB-1103
Decimal Point Card & Label
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 2025