atkelar | Tektronix 576 Curve Tracer - Part 2 @atkelar | Uploaded March 2024 | Updated October 2024, 12 hours ago.
I always wanted a decent curve tracer to check up on replacement parts with a bit more scrutiny. But the price was alwas a limiting factor. And the Tektronix model here is also quite heavy, so shipping usually almost doubles that. By the end of 2023, an online friend said he had to sell off his, due to lack of time, space and money. Add that to another online contact making a journey by car earlier in 2024, and I just couldn't pass up the chance! So, here we are: part two of three of the in-depth restoration of this classic device!
NOTE: The cleanup process was even lengthier than shown... I only left "one item per type" in the video. e.g. from the 5 waver switches, only the most elaborate one is shown in detail...
0:00 Intro / Resistor?! / Scrubbing!
2:30 Paint Problem / Graticule Illumination Screws / Custom Paint!
5:07 Recapping / Transistor Cleanup
7:01 Power Switch / Waver Switch
9:35 "Cam Drum" Switches
12:00 Push Buttons
15:22 Mini Potentiometers
17:43 TTL IC Problem / Transistor Repair
19:30 CRT Gain Potentiometers
21:10 CRT Deflection Standoffs / Resoldering
22:05 Variac / Compensation Capacitors
24:08 Display Readout!
27:03 Assembly: Collector Supply!
29:58 Collector Supply Circuit Overview
31:50 Backbone Beginning! / Mains Input Lines
33:25 DC Filter Caps / Clearence Problem / Wire Loom Start!
35:10 Thermal Cutoff / Transformer Taps / Power Resistors
35:57 Rectifier Board / Regulator Board / Summary / Outtake
General Information: w140.com/tekwiki/wiki/576
Blog post mentioning the "TTL Issue": jacmusic.com/Tube-testers/TEK-576/Tek-576-2-Restoration.html
Music (in order)
My Train's A Comin' - Unicorn Heads
Town of 24 Bars - Unicorn Heads
First Aid - Letter Box
Dusty Fingers - DJ Williams
Frame of Mine - Freedom Trail Studio
Oceans - Text Me Records / Bobby Renz
No Good Right - Freedom Trail Studio
Sunset Trails - DJ Williams
First Aid - Letter Box
No Good Right - Freedom Trail Studio
(YouTube Audio Library)
You can support me on Ko-Fi: ko-fi.com/atkelar
and also on Patreon: patreon.com/Atkelar
and now also here by using the "Super Thanks" feature!
Thanks to everybody who signed up already!
I always wanted a decent curve tracer to check up on replacement parts with a bit more scrutiny. But the price was alwas a limiting factor. And the Tektronix model here is also quite heavy, so shipping usually almost doubles that. By the end of 2023, an online friend said he had to sell off his, due to lack of time, space and money. Add that to another online contact making a journey by car earlier in 2024, and I just couldn't pass up the chance! So, here we are: part two of three of the in-depth restoration of this classic device!
NOTE: The cleanup process was even lengthier than shown... I only left "one item per type" in the video. e.g. from the 5 waver switches, only the most elaborate one is shown in detail...
0:00 Intro / Resistor?! / Scrubbing!
2:30 Paint Problem / Graticule Illumination Screws / Custom Paint!
5:07 Recapping / Transistor Cleanup
7:01 Power Switch / Waver Switch
9:35 "Cam Drum" Switches
12:00 Push Buttons
15:22 Mini Potentiometers
17:43 TTL IC Problem / Transistor Repair
19:30 CRT Gain Potentiometers
21:10 CRT Deflection Standoffs / Resoldering
22:05 Variac / Compensation Capacitors
24:08 Display Readout!
27:03 Assembly: Collector Supply!
29:58 Collector Supply Circuit Overview
31:50 Backbone Beginning! / Mains Input Lines
33:25 DC Filter Caps / Clearence Problem / Wire Loom Start!
35:10 Thermal Cutoff / Transformer Taps / Power Resistors
35:57 Rectifier Board / Regulator Board / Summary / Outtake
General Information: w140.com/tekwiki/wiki/576
Blog post mentioning the "TTL Issue": jacmusic.com/Tube-testers/TEK-576/Tek-576-2-Restoration.html
Music (in order)
My Train's A Comin' - Unicorn Heads
Town of 24 Bars - Unicorn Heads
First Aid - Letter Box
Dusty Fingers - DJ Williams
Frame of Mine - Freedom Trail Studio
Oceans - Text Me Records / Bobby Renz
No Good Right - Freedom Trail Studio
Sunset Trails - DJ Williams
First Aid - Letter Box
No Good Right - Freedom Trail Studio
(YouTube Audio Library)
You can support me on Ko-Fi: ko-fi.com/atkelar
and also on Patreon: patreon.com/Atkelar
and now also here by using the "Super Thanks" feature!
Thanks to everybody who signed up already!
