These were part of the score, some, you tell me, I have no clue!
Other like that old transfo is nice.
(https://i.postimg.cc/BQYB6vJf/IMG-0879.jpg) (https://postimg.cc/LnP1Q2qx)
(https://i.postimg.cc/tRzzK5fT/IMG-0880.jpg) (https://postimg.cc/23Vvv4CR)
(https://i.postimg.cc/CxRHfVKB/IMG-0881.jpg) (https://postimg.cc/yDzSwtcs)
(https://i.postimg.cc/fLfxhz8F/IMG-0883-2.jpg) (https://postimg.cc/R6q37B5Q)
(https://i.postimg.cc/wjn5XbtW/IMG-0884.jpg) (https://postimg.cc/K1rgFfDL)
(https://i.postimg.cc/TPmVCqgT/IMG-0886.jpg) (https://postimg.cc/FfrkKST6)
(https://i.postimg.cc/SNNGk9FG/IMG-0887.jpg) (https://postimg.cc/PN9DMPqL)
(https://i.postimg.cc/c4HfVNw9/IMG-0888.jpg) (https://postimg.cc/fkG39pHm)
(https://i.postimg.cc/CLQb064F/IMG-0889.jpg) (https://postimg.cc/w7D1c2PP)
(https://i.postimg.cc/h4M9yGzQ/IMG-0890.jpg) (https://postimg.cc/nMjjMp1n)
Great score! Some radio stuff in there (IF transformer and so on) but mostly VERY useable stuff! I am jealous! :)
I want a triode socket like the octal one above, that has screw terminals.
Quote from: momo on April 30, 2023, 05:30:04 PM
These were part of the score, some, you tell me, I have no clue!
Other like that old transfo is nice.
(https://i.postimg.cc/BQYB6vJf/IMG-0879.jpg) (https://postimg.cc/LnP1Q2qx)
From this you might be able to scrape-up some more data:
[click for full size file]
(https://i.postimg.cc/DJDL1Xf2/advert-1960-CRB100-4-way-Tube-Brightener.png) (https://postimg.cc/DJDL1Xf2)
Quote from: Rob Strand on April 30, 2023, 06:27:46 PM
Quote from: momo on April 30, 2023, 05:30:04 PM
These were part of the score, some, you tell me, I have no clue!
Other like that old transfo is nice.
(https://i.postimg.cc/BQYB6vJf/IMG-0879.jpg) (https://postimg.cc/LnP1Q2qx)
From this you might be able to scrape-up some more data:
[click for full size file]
(https://i.postimg.cc/DJDL1Xf2/advert-1960-CRB100-4-way-Tube-Brightener.png) (https://postimg.cc/DJDL1Xf2)
That looks like one of those CRT boosters that they used many years ago to enhance the picture on failing TV CRTs.
(https://i.postimg.cc/VJDz8K9M/booster.jpg) (https://postimg.cc/VJDz8K9M)
QuoteThat looks like one of those CRT boosters that they used many years ago to enhance the picture on failing TV CRTs.
Yes, it was a hack fix that was frowned upon as it quite often didn't solve the true problem. From a modern perspective it increased the X-rays from the tube. Compare that to later CRT computer monitors and TVs which detected the HV getting too high and shutdown the monitor in order to prevent high X-rays!
AD2006 was a now-$9 digital voltmeter which sold for well over $300 when new.
https://datasheet.datasheetarchive.com/originals/distributors/Databooks-1/Book232-486.pdf
Guardian is a solenoid. Hook it to 12VDC, it will suck-up the core. Hook it to 24V it will suck-up pretty seriously, like tape-deck control.
https://www.kelcoind.com/product/frame-solenoids/
#2 and #3 are transformers. The square can is obviously a radio IF transformer. The Bakelite job may be an audio transformer, but the labels are unclear to me. Being "intervalve 1938" it is surely >100K impedances and 200-5kHz bandwidth.
QuoteGuardian is a solenoid. Hook it to 12VDC, it will suck-up the core. Hook it to 24V it will suck-up pretty seriously, like tape-deck control.
It should be possible to get data on that one. Guardian is a US company (I think they are still operating). I worked on a project which used 1000's of their solenoids. The solenoid is highly likely to be DC. The plungers have shape options. The shape trades a stronger force when extended (conical) with stronger force when closed (flat).
the general rule with those style Rifa caps is - if they have any cracks or crazing, chuck em away. if no cracks, chuck em away.
Quote from: Rob Strand on April 30, 2023, 09:38:55 PMIt should be possible to get data on that one. Guardian is a US company (I think they are still operating). ...The solenoid is highly likely to be DC.
I posted a link to Kelco who operates Guardian now.
Momo's picture says 24V
DC on it.
I think Momo can take it from there.
Quote from: duck_arse on May 01, 2023, 11:21:49 AM
the general rule with those style Rifa caps is - if they have any cracks or crazing, chuck em away. if no cracks, chuck em away.
So, is that because you want them?, :icon_biggrin:
or are they really crap?!
Quote from: PRR on May 01, 2023, 01:14:25 PM
Quote from: Rob Strand on April 30, 2023, 09:38:55 PMIt should be possible to get data on that one. Guardian is a US company (I think they are still operating). ...The solenoid is highly likely to be DC.
I posted a link to Kelco who operates Guardian now.
Momo's picture says 24VDC on it.
I will sell those as I don't need that.
I think Momo can take it from there.
This was used as crossovers?, and the ability to increase or decrease high end via the switches.
heavy current coils it seems.
(https://i.postimg.cc/g0NNXpMx/IMG-0906.jpg) (https://postimg.cc/Ty5rFzvx)
Look at these beauties,
I don't know why I think of Saddam Hussein and his golden toilet.
:icon_mrgreen:
I don't have any info on these..
(https://i.postimg.cc/VvSGPhWd/IMG-0903.jpg) (https://postimg.cc/0Ksdpc3s)
(https://i.postimg.cc/90vxmBL1/IMG-0904.jpg) (https://postimg.cc/m1y3V7fF)
QuoteI posted a link to Kelco who operates Guardian now.
Yep, looks like Guardian still exists but under Kelco. I didn't get a hit on that part number. 1974 I suppose you need an old catalog or advert.
Quote from: momo on May 01, 2023, 06:06:16 PM
This was used as crossovers?, and the ability to increase or decrease high end via the switches.
heavy current coils it seems.
Sure looks like it to me. I'm not sure what it's origin is. It's not DIY that's for sure. Commercial speakers don't have history of putting values on the inductor. Also, the inductors also have part numbers. I was thinking perhaps a DIY speaker kit but ...
A bit of poking around for the inductor part numbers got me to: Wharfedale Dovedale 3-way crossover. So commercial speakers
https://www.vintage-radio.net/forum/showthread.php?t=133016
https://www.diyaudio.com/community/threads/wharfedale-dovedale-3.321497/
Wharfdale is a very well known HiFi speaker company from the UK.
QuoteI don't know why I think of Saddam Hussein and his golden toilet.
They made some really cool looking chips in the 70's.
Lot's of cool stuff in that score by the way.
I can't find any info on this, it looks like a transistor to me..
(https://i.postimg.cc/bvQx4TnB/IMG-0910.jpg) (https://postimg.cc/rdwRr5Q1)
possibly a resonator or filter. what's the other face look like?
Nothing else on it.
I found many of these mixed in with 1/2 watt carbon comp resistors.
Mini inductor?
.2 ohms from automode on DMM
(https://i.postimg.cc/QNpD4D5j/IMG-0911.jpg) (https://postimg.cc/XX7tqTQP)
QuoteI can't find any info on this, it looks like a transistor to me..
Probably a rectifier or 2xdiode array. Check with multimeter for the presence of diodes and how they connect.
The common set-up is a common terminal and two diodes point towards or away from that common terminal. However, back in the 60's companies offered all sorts of arrangements.
QuoteI found many of these mixed in with 1/2 watt carbon comp resistors.
Mini inductor?
.2 ohms from automode on DMM
Short the DMM terminals first to get a reading for the DMM leads. Measure the part, then subtract the DMM leads.
Good chance they are 0.1 ohm or so.
Not sure those parts are off the shelf or someone made them - very common to DIY low valued resistors by windng resistance wire over other resistors.
Quote from: Rob Strand on May 03, 2023, 05:55:02 PM
Not sure those parts are off the shelf or someone made them - very common to DIY low valued resistors by windng resistance wire over other resistors.
They look to me like power supply remote sense resistors..
Quote from: antonis on May 03, 2023, 06:15:28 PM
Quote from: Rob Strand on May 03, 2023, 05:55:02 PM
Not sure those parts are off the shelf or someone made them - very common to DIY low valued resistors by windng resistance wire over other resistors.
They look to me like power supply remote sense resistors..
One of the possibles. In the early days people made meter shunts to measure current. Also, emitter resistors on the output stage of power amplifiers - the fact there's two resistors made me think of the last one. However the fact they are burnt is more like power supplies and meter shunts.
Oh I did not mention but I have maybe 30 of those.
I think the person who had this built hi-end audio tube amps.
QuoteOh I did not mention but I have maybe 30 of those.
I think the person who had this built hi-end audio tube amps.
That adds to the mystery. ;D ;D ;D
Quote from: momo on May 03, 2023, 07:30:20 PM
I think the person who had this built hi-end audio tube amps.
So, Emitter balast resistors idea is drifting apart.. 8)
Chokes wound on resistors were commonly used in tube amplifiers and transmitters in the grid and plate circuits. The purpose of the resistor was to damp out any tendency for resonance. These items were used to prevent oscillation at high radio frequencies by adding a resistor to damp the oscillation and an inductor in parallel so the resistor wouldn't drop too much voltage due to the current through it.
If you had a transmitting tube like an 807 with a plate cap as an output, the several inches of wire between the tube and the output tuned circuit may create a tuned plate oscillator that could oscillate around 100 MHz even though the circuit was intended to operate at low frequencies like 7 MHz where the 40 metre band is.. These parasitic chokes were used to prevent this. They were also used on large audio amplifiers because you still had connections that could oscillate at radio frequencies even though these oscillations were unintended.
These devices were so commonly used in radio transmitters that you could buy them as assembled units - you didn't have to buy a resistor and wind your own.
Thats why I post these things is to learn cool stuff. Thanks for the info.
Finally got to sort the 1/2 watt , or 1 watt? resistors, not sure.
I have never seen black ones like that....
(https://i.postimg.cc/T18SKy32/IMG-0914.jpg) (https://postimg.cc/wyVFPjNn)
(https://i.postimg.cc/Jz7n20c2/IMG-0915.jpg) (https://postimg.cc/Xph4ZVPf)
I can't find any info on this transformer either.
Does not show up on the Hammond website.
(https://i.postimg.cc/wBmngc94/IMG-0916.jpg) (https://postimg.cc/5HfsmzY8)
(https://i.postimg.cc/63xg323W/IMG-0917.jpg) (https://postimg.cc/2qT295hM)
Quote from: momo on May 04, 2023, 08:54:07 AM
I can't find any info on this transformer either.
Does not show up on the Hammond website.
There's a *very* good chance it's a 600 ohm to 600 ohm audio transformer. Possibly with some tapped windings.
Measure the resistances across the terminals:
- pin 1 to 2, 3, 4, .. etc, then,
- pin 2 to 3, 4, 5
etc.
You might see resistances in the order of 20 to 30 ohm (60 ohms max).
If you see different it might be for different impedances.
I just searched for hammond 600 ohm transformer and got this.
Looks like a very similar design although
https://www.ebay.com.au/itm/234757467908?chn=ps&norover=1&mkevt=1&mkrid=705-159824-816807-4&mkcid=2&mkscid=101&itemid=234757467908&targetid=4585307092966486&device=c&mktype=&googleloc=&poi=&campaignid=431353848&mkgroupid=1307319748402955&rlsatarget=pla-4585307092966486&abcId=9301943&merchantid=136820&msclkid=57f191b12ce81ac4e2b5f5e2916cfd90
600 ohm to 600 ohm
100mW
20Hz to 20kHz +/- 0.5dB
Less than 0.2% distortion.
Well look at this from Hammond 1965 catalog,
http://www.hammondmfg.com/hist.htm
Page 6, type 960,
http://www.hammondmfg.com/pdf/Catalog%2065.pdf
I'd measure those resistors before using them, chances are they are over spec/tolerance on the high side.
Quote from: mozz on May 04, 2023, 10:44:42 AM
I'd measure those resistors before using them, chances are they are over spec/tolerance on the high side.
They are, I just put a ballpark testing a few,(I'm not very good detecting the colours).
I test everything I use so yea, I just pick the closest one.
So google is useless if you don't know what your looking for!
Thanks Rob for your efforts on the research.
So it seems these 960's are output transformers matching the plate to the voice coil.
If it's the case then these are Hi-Fi transfos .
Quote from: momo on May 04, 2023, 11:48:41 AM
So google is useless if you don't know what your looking for!
Thanks Rob for your efforts on the research.
So it seems these 960's are output transformers matching the plate to the voice coil.
If it's the case then these are Hi-Fi transfos .
Yes, 10W. The notes in the catalog say to keep the DC balanced through each winding.
Not a common construction for an output transformer. If I had to bet I would have gone with the 600 ohm
over an output transformer. Goes to show you can only guess so far. Things are what they are.
Gold Bar Capacitors, all numbers correspond with Pico Farads pF all still very tight within tolerance. the ones marked L somehow seem to denote 100pF
(https://i.postimg.cc/BLTzqKDt/Gold-Bar-Caps-T.jpg) (https://postimg.cc/BLTzqKDt)
(https://i.postimg.cc/pp6sMZ7q/Gold-Bar-Caps-B.jpg) (https://postimg.cc/pp6sMZ7q)
(https://i.postimg.cc/grsrtt5L/Gold-Bar-Caps-T2.jpg) (https://postimg.cc/grsrtt5L)
QuoteGold Bar Capacitors, all numbers correspond with Pico Farads pF all still very tight within tolerance. the ones marked L somehow seem to denote 100pF
Never seen those before. I wonder what they can claim. Tight tolerance. Maybe stability (with temperature/time)?
(If L = 100pF then L comes from Roman Numerals.)
Hi Rob, What i meant by tight within tolerance, was that even after likely well on 60 years or more they are still very close from as little as 1% to no more than 5% away from there rated number specs, at least the larger pF ones were.
Does L in Roman numerals mean 100? I thought it was C was 100?
Just checked that and yes C is still 100 from Rome, but L is actually 50, so in that regard, means these smaller value ones have drifted to
just over twice there rated pF value, spose they could count now as 100pF
Quote from: bluelagoon on May 05, 2023, 06:11:57 AM
Hi Rob, What i meant by tight within tolerance, was that even after likely well on 60 years or more they are still very close from as little as 1% to no more than 5% away from there rated number specs, at least the larger pF ones were.
Pretty cool. I wonder what they are from?
Quote
Does L in Roman numerals mean 100? I thought it was C was 100?
Just checked that and yes C is still 100 from Rome, but L is actually 50, so in that regard, means these smaller value ones have drifted to
just over twice there rated pF value, spose they could count now as 100pF
Yes, you are right. (My heads not screwed on this week.)
I did get these and a lot of other vintage components from an elderly retired vacuum tube CRT screen TV repairman, who also did vintage tube radios, so guess they came from that type equipment.
ham?
Quote from: bluelagoon on May 05, 2023, 10:54:56 AM
I did get these and a lot of other vintage components from an elderly retired vacuum tube CRT screen TV repairman, who also did vintage tube radios, so guess they came from that type equipment.
With such a range of values it's hard to pin down a specific use. A different spin is a particular set had this type of cap throughout. Maybe they looked cool to him and he saved them.
What's a crt ?
Cathode Ray Tube
https://en.wikipedia.org/wiki/Cathode-ray_tube (https://en.wikipedia.org/wiki/Cathode-ray_tube)
edit: You're trolling us, don't you..?? :icon_mrgreen:
Sorry, no humor here don't there.
But off topic, I am working on a real Stompbox atm.
I mean in a real metal box with a foot Stomper thing.
Unlike my many other effects on a box of some obscure material. Lol
Sans crt, bw btw. So I guess it won't lighten up.
Found this, 2 inductors.!
(https://i.postimg.cc/65hGchdt/IMG-1031.jpg) (https://postimg.cc/crrH4w9b)
(https://i.postimg.cc/L8MNYvmS/IMG-1032.jpg) (https://postimg.cc/2V24gQq9)
Nice high voltage glass caps PF values.
(https://i.postimg.cc/J0LGcy0s/IMG-1024.jpg) (https://postimg.cc/PpSXd5mH)
No clue
(https://i.postimg.cc/28nxDvhK/IMG-1029.jpg) (https://postimg.cc/bsNn0Z6x)
(https://i.postimg.cc/ZRgLTxw1/IMG-1030.jpg) (https://postimg.cc/LYtPDLKT)
Nice German resistors..
(https://i.postimg.cc/X72YX1fG/IMG-1034.jpg) (https://postimg.cc/MvQSFDrq)
Cool stuff in those last few posts.
QuoteNo clue
Probably a cap. The 2000 on the front matches the color code on the back. So maybe 2000pF = 2nF.
Easy to check by measuring open resistance with DMM and value the capacitance meter.
The symbol is an a old Siemens logo. (The logos change over time and a quick check showed it was around 1930 but you should check it wasn't re-used in the 1960's.)
Not "glass" caps, polystyrene. Especially with those shot leads, they will be damaged in soldering.
The coils with the caps and resistors looks like a stereo high-cut filter for a radio. In AM, a "whistle filter". Mono FM has a simple roll-off but a stereo FM decoder may have multiple L-C filters. Hard to know unless you have the radio this came out of (or have good detective skills and studies).
Quote from: PRR on May 07, 2023, 09:25:29 PM
Not "glass" caps, polystyrene. Especially with those shot leads, they will be damaged in soldering.
The coils with the caps and resistors looks like a stereo high-cut filter for a radio. In AM, a "whistle filter". Mono FM has a simple roll-off but a stereo FM decoder may have multiple L-C filters. Hard to know unless you have the radio this came out of (or have good detective skills and studies).
Came out of a german Grundig receiver.
I will check resistance , maybe wha wha coils..?
So those caps are not usable?
I have used some of those and it worked.
Maybe not solder too hot?
Quote from: Rob Strand on May 07, 2023, 06:24:51 PM
Cool stuff in those last few posts.
QuoteNo clue
Probably a cap. The 2000 on the front matches the color code on the back. So maybe 2000pF = 2nF.
Easy to check by measuring open resistance with DMM and value the capacitance meter.
The symbol is an a old Siemens logo. (The logos change over time and a quick check showed it was around 1930 but you should check it wasn't re-used in the 1960's.)
I thought VDR or similar. voltage dependant resistor.
QuoteI thought VDR or similar. voltage dependant resistor.
It's possible. Some telephones had that type of thing in them but I don't remember the parts having value markings so I went with the cap. If it passes the tests on the DMM and cap meter then good chance it's a cap.
QuoteSo those caps are not usable?
Those caps are usable and were used in a lot of equipment. They were considered to be good caps in the day, "better" than ceramics, since they were stable and low loss. Also polystyrene were one of the few cap types which were readily offered in low tolerance like 1%. They were usually small values, maybe upto 10nF. I've a got a few 470nF 1% polystyrenes and they are somewhere around the size of a "sub C" battery.
This would be great to use on a build but a challenge as the pots are 2M and 1M's.
(https://i.postimg.cc/7h8G8b5v/IMG-1048-2.jpg) (https://postimg.cc/phCXKWQk)
Quote from: Rob Strand on May 08, 2023, 06:20:50 PM
QuoteI thought VDR or similar. voltage dependant resistor.
It's possible. Some telephones had that type of thing in them but I don't remember the parts having value markings so I went with the cap. If it passes the tests on the DMM and cap meter then good chance it's a cap.
The thing clocks in @ 2nF...
"This would be great to use on a build but a challenge as the pots are 2M and 1M's."
A couple of equal resistors across 123 will change them pots
This would be great to use on a build but a challenge as the pots are 2M and 1M's.
Throw a resistor across each pot in parallel to change the value?
(Phend beat me to it)
I had that thought although I thought it would change the throw or characteristics of the pot too much as I would go from 2M to 100k for example.
OK good to know.
Quote from: momo on May 09, 2023, 08:35:10 AM
I had that thought although I thought it would change the throw or characteristics of the pot too much as I would go from 2M to 100k for example.
OK good to know.
You can always see the effect of putting resistors across pots with the CustomPotentiometers spreadsheet here:
www.fleetingspider.com/files/CustomPots.xlsx
I make no claims to this, I just found it elewhere.
I finally took this out of the garage, a Diathermy base, looks like a giant capacitor beside a transformer..
(https://i.postimg.cc/W3cw9C1Z/IMG-1213.jpg) (https://postimg.cc/mcV9kdMZ)
(https://i.postimg.cc/gkzNFCqq/IMG-1214.jpg) (https://postimg.cc/xqZKLFZc)
(https://i.postimg.cc/pXsk2ssN/IMG-1215.jpg) (https://postimg.cc/F7J0pVtG)
(https://i.postimg.cc/nh5kmC80/IMG-1216.jpg) (https://postimg.cc/rD1xXywr)
(https://i.postimg.cc/LXkBGDJb/IMG-1217.jpg) (https://postimg.cc/0MQwwpdY)
(https://i.postimg.cc/rpr9NMMc/IMG-1218.jpg) (https://postimg.cc/hJKxSFX3)
(https://i.postimg.cc/Z50H06QW/IMG-1219.jpg) (https://postimg.cc/5XdLRQbJ)