General > General Technical Chat
Vacuum Tube PORN !!!
GlennSprigg:
Ok, I;m getting old, and the 'bits' don't work any more...
There's a few old sites that may have excited me years ago, but these days it's old 'Tube' stuff !!!
You generally need to be old to appreciate it, marveling at the way things used to be built! For Eg...
https://live.staticflickr.com/3287/3064309439_2fd1b4ee5c_z.jpg
One of countless tube testers for example. (Am not talking about the brand... xox)
Back in the 1920's though, even if original, their valves/tubes were very sub-standard. For instance,
an ancient 'UV-201' triode. This is even Pre-Thoriated Tungsten Filaments! Do I want 'my' historical
piece to be truly 'original', or actually Functional!! Probably somewhere in between!!
I can't 'help' feeling excited while playing with such old equipment, and although such 'original' tubes
might make it 'historically correct', there are better ones from the era to use...
I now also have numerous 'Ads' for such equipment/valves etc. Like...
https://images.reverb.com/image/upload/s--1xKpim4Z--/a_exif,c_limit,e_unsharp_mask:80,f_auto,fl_progressive,g_south,h_620,q_90,w_620/v1444390864/fogn0fwc3p52dp721y9i.jpg
My 'bits' don't work as they used to, so now, this is my Porn!!! Hahaha.... :-DD
Cyberdragon:
You call that a tube tester?
These are tube testers. ;)
Also, 20s and earler tubes in working order can be EXTREMELY valuable. If a tube is missing, and the set is not mint otherwise, it's fine to just use substitutes. But DO NOT replace working 20s or earlier tubes "just to get better performance", fast way to get instantly shunned from tube communities.
GlennSprigg:
--- Quote from: Cyberdragon on May 02, 2020, 07:30:59 am ---You call that a tube tester?
These are tube testers. ;)
Also, 20s and earler tubes in working order can be EXTREMELY valuable. If a tube is missing, and the set is not mint otherwise, it's fine to just use substitutes. But DO NOT replace working 20s or earlier tubes "just to get better performance", fast way to get instantly shunned from tube communities.
--- End quote ---
Oh my God!!!... My legs are shakin! :D Beautiful!! :-+
That could NEVER be replaced by some cigarette sized transistorized/digital box!!!
Seriously though, the problem with some old tube testers, (not yours!), is finding the applicable
data-sheets for their switch settings today. You know what I mean ! :-+
Cyberdragon:
Depends on how rare the unit is, you can probably find them online. Some testers even tell you the method of testing tubes based on the datasheet or just from a known good tube (though the ladder is usually funnily enough on crappy meters as it would not be calibrated).
My actual tester is a beat up Eico 666 with mods (currently in need of repair). I also have a really crappy heathkit for testing tubes that might be severely damaged (shorted) inside.
TimFox:
With respect to the British Avo unit, I remember that US Hickok testers often had a control knob labeled “English”, presumably a billiards allusion.
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