Vintage/Rare Component Harvesting/Removal Finds

himister · Post by **himister** » 31 Jul 2009, 15:53

Here are the some of the salvaged components from an old TV's, tube radios even the US Army radio from 2nd WW.
Some germanium transistors are Sanyo, Mitsubishi, Valvo, Ei, from AC, 2SA, 2SB and some Russian KT, ГТ(GT) and П(P) series.

Germaniums:

: ac128.188.jpg (25.6 KiB) Viewed 2218 times

: ac.2sbSANYO.jpg (23.86 KiB) Viewed 2218 times

: Gbunch.jpg (32.18 KiB) Viewed 2218 times

Some audio tubes like ECC82, ECC83, EF86, EL85, PL84 etc

himister · Post by **himister** » 31 Jul 2009, 15:56

And from an US Army radio.

Tubes JAN 6C7, 6K7, and even 6V6GT-G

Some ceramic tube sockets:

: usarmytubesockets.jpg (25.44 KiB) Viewed 2218 times

: usarmytubesockets2.jpg (31.71 KiB) Viewed 2218 times

new_anuzzerone · Post by **new_anuzzerone** » 05 Sep 2009, 14:53

Hi,
I recently ripped an old "Samick" mixing console (beginning / mid 1990s), 8 channels, and found:
- about 10 JRC072D (some more??)
- ca. 4 JRC4558D
- ca. 2 JRC4558DD

I´ve modded some pedals with the parts and I´m quite happy with it.

regards

WhiteKeyHole · Post by **WhiteKeyHole** » 06 Sep 2009, 04:04

I pulled a few TO-106 transistors from an old radio. Am I correct in assuming that GS9014 is equivalent to SS9014?

RnFR · Post by **RnFR** » 06 Sep 2009, 06:49

WhiteKeyHole wrote:I pulled a few TO-106 transistors from an old radio. Am I correct in assuming that GS9014 is equivalent to SS9014?

is it just me, or do all those old fairchild to-106's sound really good?

Findm-Keepm · Post by **Findm-Keepm** » 14 Jan 2010, 04:00

I just got a vintage Japanese (Hitachi) LORAN receiver - Germanium heaven! 2SA12's mostly, but some 2SB and 2SD devices as well. One delay board has 22 2SA12's on it and it's only 20cm long!

Here in the US, old clock radios are under a buck at the thrifts, and some of the late 60's Japanese/Hong Kong manufactured ones have 2SB175 ad 2SB187's in them. I got a Ross and a Truetone that were 100 percent Germanium.

I'm still waiting for delivery of an older Western Electric/AT&T messaging system that was torn from a large department store. The transistors are all a mystery until I get the thing in my hands, but there looks to be 20-30 boards with transistors (all metal case TO-5, like 404's).

Cheers,
Brian

lolbou · Post by **lolbou** » 14 Jan 2010, 13:39

@ Findm-Keepm : post mocve to the vintage harvesting thread...

Scruffie · Post by **Scruffie** » 06 Apr 2010, 12:59

Reviving a dead thread but Here's one for you...

Lots of the Old VHS players etc. are now defunct, they're probably just going to the skip from most peoples homes but... some of them should be a source of BBD chips (don't go downstairs and rip apart your VCR on a whim though!) and i'd imagine quite a few other ICs, so has anyone found any in them? Got any brands or models to look out for perhaps? It's recycling and saving vast amounts of money from otherwise junk...

Also the datasheets for a few of the chips say Telephone communication systems... i'd be interested in what sort of gear that might be because old Telephone gear can be picked up pretty cheap.

I'd mention Karaoke machines being a source aswell, but, well... if you have a karaoke machine in your house, I wouldn't want to be at one of your parties

and it's not something you see lying about every day.

So what's everyone recon?

theehman · Post by **theehman** » 06 Apr 2010, 13:09

Scruffie wrote:Reviving a dead thread but Here's one for you...

Lots of the Old VHS players etc. are now defunct, they're probably just going to the skip from most peoples homes but... some of them should be a source of BBD chips (don't go downstairs and rip apart your VCR on a whim though!) and i'd imagine quite a few other ICs, so has anyone found any in them? Got any brands or models to look out for perhaps? It's recycling and saving vast amounts of money from otherwise junk...

Also the datasheets for a few of the chips say Telephone communication systems... i'd be interested in what sort of gear that might be because old Telephone gear can be picked up pretty cheap.

I'd mention Karaoke machines being a source aswell, but, well... if you have a karaoke machine in your house, I wouldn't want to be at one of your parties and it's not something you see lying about every day.

So what's everyone recon?

Why would a VCR have a BBD chip?

Scruffie · Post by **Scruffie** » 06 Apr 2010, 13:15

I think they used them to sync the speed of the audio to the tape... anyway, some information to video processing is mentioned on the SAD1024 datasheet and I know from a previous post I saw when searching for something else, that Mr.Dirk Hendrik found one in a VCR.

And you also get them in TVs for "Surround Sound" Functions apparently.

Dan N · Post by **Dan N** » 06 Apr 2010, 20:34

I've been in tons of VCR's and never found a BBD. They do have crystal delay thingies- it's like a thin slice of glass with taps along the bottom. I've never fooled with one as I suspect the amount of delay is minute.

Scruffie · Post by **Scruffie** » 07 Apr 2010, 16:17

Well here's the quote...
"Years and years ago I pulled a PCB from a toploader VHS VCR which contained a chip labelled MN3010."

Perhaps it's just really old VCRs but these BBDs must have been used for a fair amount of stuff other than pedal designs and i'd happily destory some uhh... I mean recycle some old equipment to get them.

Out of interest seeing as you say you've been in alot of old VCRs, what other kind of stuff's inside them, that's one of the few pieces of technology I haven't been inside for the hell of it.

Dirk_Hendrik · Post by **Dirk_Hendrik** » 07 Apr 2010, 19:47

Yep.
And I even got a PM on the brand.. which I forgot.

I'll check again with the pm-er.
BBD had to do with soundpitching during scrolling.

edit;

That's the JVC HR-7700

Scruffie · Post by **Scruffie** » 07 Apr 2010, 20:07

Nice, Cheers for Chiming in Dirk.

I can understand small amounts of Delay being needed in these products which is fine, but I wonder what sort of electronics would have used an MN3005? I know you can pick them up in old Mixers etc. but i'd rather open up stuff that's not still useful.

Dirk_Hendrik · Post by **Dirk_Hendrik** » 07 Apr 2010, 20:30

Scruffie wrote: stuff that's not still useful.

You just wrote an alternative definition for "karaoke machines"

soulsonic · Post by **soulsonic** » 08 Apr 2010, 03:29

Dan N wrote:They do have crystal delay thingies- it's like a thin slice of glass with taps along the bottom. I've never fooled with one as I suspect the amount of delay is minute.

I remember finding one of those in a Betamax I tore apart in high school. What are those for and how do they work?

Dirk_Hendrik · Post by **Dirk_Hendrik** » 08 Apr 2010, 05:59

Those delay lines are in the nS range..

JiM · Post by **JiM** » 08 Apr 2010, 20:12

soulsonic wrote:
Dan N wrote:They do have crystal delay thingies- it's like a thin slice of glass with taps along the bottom. I've never fooled with one as I suspect the amount of delay is minute.
I remember finding one of those in a Betamax I tore apart in high school. What are those for and how do they work?

Here is a quick explanation, and a picture :
http://en.wikipedia.org/wiki/Delay_line ... elay_lines
Another shape :

To summarize, it's a quartz rod with two piezo electro-acoustic transceivers, and the electric signal is delayed using the lower speed of sound in the crystal. To reduce size, the acoustic signal path is "folded", using reflexions on the edges of the rod. They are used to improve the chrominance channel in european TV sets.

Dirk_Hendrik wrote:Those delay lines are in the nS range..

Some are longer. For PAL or SECAM (i.e. french) TV sets and VCR, they store the duration of a line, about 64µs.
Still way too short for audio ...

The lack of these in NTSC sets gives one reason for the name : Never Twice the Same Color

Some high-end (i mean, professional) european video systems might include a pitch-shifter for audio, to compensate the frame rate conversion (24 fps for cinema, 25 fps for TV) http://en.wikipedia.org/wiki/NTSC#Comparative_quality

What about using CCD to replace BBD ?

gtr2 · Post by **gtr2** » 14 Apr 2010, 02:45

Any idea what the easter egg looking things are (resistors?) They are labeled on the board as an L_ _ _ Are the green/clear diodes some type of germainium? Thanks for your help. I'm new to pedal building and I opened up an old VCR to check it out..

SpencerPedals · Post by **SpencerPedals** » 14 Apr 2010, 03:10

Inductors. I had the same question myself when I started the recycling process.