atkelar | Workshop Project #10 - HP Spectrum Analyzer @atkelar | Uploaded August 2021 | Updated October 2024, 14 hours ago.
Ever since I'm digging into more into analog TV - and also a bit analog radio - I was looking for an affordable hardware based spectrum analyzer. Around here these are also commonly called "frequency analyzer" for some reason which is why I keep using both terms, sorry for the confusion.

The device was sold for cheap most likely because of the sad outside look: missing buttons, scratches and quite a patina... But here's where I come in and set out to give the device a new life.

0:00 Intro / E-Bay Info
1:15 Disassembly / USA v Canada
2:05 Sticky Stuff
3:05 Battery
4:04 Base "Plate"
4:50 Checking for Electrolytics, Finding the Horror
6:12 Keyboard PCB Repair / Button Replacement
7:21 Reassembly: Base "Plate" / Keyboard & Screen
9:03 IF Module / Power Supply
9:40 Modules & Front Panel / First Time Power
10:42 Finished... or is it? / Battery Replacement
11:56 New Buttons: Mold
13:30 New Buttons: Pouring
14:11 New Buttons: Trimming & Graphite / Reassembly
14:38 Case Paint & Button Test / Cleaning Bumpers
15:31 Test Run / VGA
16:40 Overview / Summary / Outtake

Music:
My Train's A Comin'
Unicorn Heads
(YouTube Audio Library)

Spectrum Analyzer on Wikipedia: en.wikipedia.org/wiki/Spectrum_analyzer

You can support me on Ko-Fi: ko-fi.com/atkelar