A little bit of nostalgia.... - diyAudio
Go Back   Home > Forums > General Interest > Everything Else

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 28th January 2013, 07:45 AM   #1
Elvee is offline Elvee  Belgium
diyAudio Member
 
Elvee's Avatar
 
Join Date: Sep 2006
Default A little bit of nostalgia....

Recently, I checked the contents of a box that had followed me unopened during house moves for more than thirty years.

I had the surprise of rediscovering a tester I had designed and built more than 35 years ago, when I was an enthusiastic but penniless 16 yo. teenager.

I plugged it in, not too hopeful, but miracle: the thing woke up, albeit with some difficulty at first, and made the familiar noises.
I tried it on a transistor, and bingo! it was still working after more than 30yrs inactivity!

This tester was capable of automatically identifying the pinout of any transistor, its polarity, material Ge or Si, and even gave a quality indication level (useful mainly for Ge transistors).

Due to my very scarce resources at the time, it was built mainly with salvaged parts from old TV sets and from unidentified rejects grab-bags sold by weight in Tottenham court road and Edgware road.
I even rewound the relays (all are different!) and the mains transformer myself.

The case is made of two cigarillo's boxes glued together, courtesy of a chain-smoker neighbor, and the front panel is also the lid of a transparent cigar box.
It is miraculous to have found this remnant of the past intact: practically all my other projects from that time (and there were many) have been lent and lost, given, recycled or dispersed in some way.

Here is the thing in action:
DIY automatic transistor tester - YouTube
Attached Images
File Type: jpg AutoTest1.jpg (84.1 KB, 64 views)
File Type: jpg AutoTest2.jpg (64.8 KB, 62 views)
__________________
. .Circlophone your life !!!! . .
♫♪ My little cheap Circlophone© ♫♪

Last edited by Elvee; 28th January 2013 at 07:53 AM.
  Reply With Quote
Old 28th January 2013, 07:57 AM   #2
just another
diyAudio Moderator
 
wintermute's Avatar
 
Join Date: Aug 2003
Location: Sydney
Blog Entries: 22
Nice! Love the noise it makes. Relays clicking away as it tries different combinations to work out which lead is what??

I can relate to scrounging bits from old TV's. I used to do the same A friend and I would go on pilgrimages to the local tip to see what we could find.

Tony.
__________________
Any intelligence I may appear to have is purely artificial!
Some of my photos
  Reply With Quote
Old 28th January 2013, 12:03 PM   #3
Elvee is offline Elvee  Belgium
diyAudio Member
 
Elvee's Avatar
 
Join Date: Sep 2006
Quote:
Originally Posted by wintermute View Post
Nice! Love the noise it makes. Relays clicking away as it tries different combinations to work out which lead is what??
Yes, precisely
__________________
. .Circlophone your life !!!! . .
♫♪ My little cheap Circlophone© ♫♪
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
NOStalgia - the all-FET JLH/PLH Class A amplifier knutn Pass Labs 22 8th October 2012 06:33 PM
A bit of Audio Nostalgia jkeny Everything Else 9 3rd September 2009 09:25 PM
Denon DCD 1520 20-bit or 18-bit? beauty_divine Digital Source 0 9th September 2007 06:41 AM
Cool site for SS nostalgia sam9 Solid State 0 28th April 2005 03:27 AM
use digital attenuation to improve 16-bit CD playback on 24 bit DAC capslock Digital Source 7 8th April 2002 11:18 PM


New To Site? Need Help?

All times are GMT. The time now is 06:57 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2