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Post by richardwoods on Dec 23, 2020 17:42:31 GMT
Sounds to me like a noise suppression cap, on the on off switch. It has no effect on performance Agree with Richard as the most likely suspect.. Do not sniff or handle this component with bare hands if it is burnt, as its internals are often made of a nasty substance like selenium. Valves unlikely to explode unless you drop something like water on a hot one. Good advice on the toxicity. |
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Post by A Barron on Dec 23, 2020 18:49:04 GMT
Agree with Richard as the most likely suspect.. Do not sniff or handle this component with bare hands if it is burnt, as its internals are often made of a nasty substance like selenium. Valves unlikely to explode unless you drop something like water on a hot one. Good advice on the toxicity. Thank you. |
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Post by Ed Brown on Dec 24, 2020 12:40:27 GMT
This type of old technology from the 1960s is extremely robust, as you've just demonstrated: a single capacitor failed without affecting the functioning of the machine.
If it was a capacitor on the noise reduction circuit, well frankly these machines generate so much mains hum and other noise that they never qualified for what - in more recent technology - would be recognised as hi-fi reproduction. I doubt it would be possible to hear much difference, both with or without the noise reduction switched in!
The photograph you posted shows that both valves are in good condition. They have quite plainly not exploded: they are both intact. The glass would be shattered in a blown valve, or the valve would be very obviously blackened by burning from the heat of the burn-out. And the sound would certainly not be working.
Nearly the entire circuitry is 1960s printed circuit boards. And bear in mind that consumer tape recorders were only on sale from about 1955. So that puts some limits on how old the machine might be.
Nothing is obviously burnt or blown in the photo, but we are only seeing one side of the circuit boards of course. If the failure occured after 90 minutes of use, that suggests a possibility is that it was triggered by a heat build-up. This older technology can generate terrific amounts of heat, compared to later equipment. If it is possible, you might consider increasing the ventilation, perhaps by leaving a side panel open whilst the machine is running. You can also buy very small computer case fans, that run off any USB socket on your computer, but come with 18 inches of cable, so could be secured inside the tape recorder with a small clamp, to add extra cooling.
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Post by Ed Brown on Dec 24, 2020 12:55:48 GMT
"The Man Born to Be King" is a radio drama based on the life of Jesus, produced and broadcast by the BBC.
You might conceivably have any of these three versions -
1. Directed by Peter Watts, t/x 23 December 1951, with Deryck Guyler as Jesus.
2. Directed by William Glen-Doepel, t/x 17 February 1965, with Tom Fleming as Jesus.
3. Directed by Raymond Raikes, BBC World Service, t/x 1967; first t/x in the UK was 19 January 1975.
This may give you confirmation of the date of the recording. If the tape is contemporary with the machine, the most likely candidate would anyway be the 1965 broadcast, which is the date you mentioned. I'm presuming that this date was written on the tape? In any case, if it features Tom Fleming in the role, it certainly dates from 1965.
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RWels
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Post by RWels on Dec 24, 2020 13:55:56 GMT
"The Man Born to Be King" is a radio drama based on the life of Jesus, produced and broadcast by the BBC. You might conceivably have any of these three versions - 1. Directed by Peter Watts, t/x 23 December 1951, with Deryck Guyler as Jesus. 2. Directed by William Glen-Doepel, t/x 17 February 1965, with Tom Fleming as Jesus. 3. Directed by Raymond Raikes, BBC World Service, t/x 1967; first t/x in the UK was 19 January 1975. This may give you confirmation of the date of the recording. If the tape is contemporary with the machine, the most likely candidate would anyway be the 1965 broadcast, which is the date you mentioned. I'm presuming that this date was written on the tape? In any case, if it features Tom Fleming in the role, it certainly dates from 1965. And it doesn't seem to be missing. (Always good to check, right?) |
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Post by A Barron on Dec 24, 2020 15:22:34 GMT
On one of the tapes I have discovered a recording from an Inter-School Quiz programme called "Question Marks", that was produced by Radio Bristol in the 1970s. I cannot find any record about this programme what so ever. All I know is that I know have an episode of it.
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RWels
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Post by RWels on Dec 24, 2020 20:27:07 GMT
On one of the tapes I have discovered a recording from an Inter-School Quiz programme called "Question Marks", that was produced by Radio Bristol in the 1970s. I cannot find any record about this programme what so ever. All I know is that I know have an episode of it. There was a BBC program, but then it would have been a recording from 1952: genome.ch.bbc.co.uk/search/0/20?adv=1&media=radio&order=asc&q=%22Question+Marks%22#searchThat would be pretty impressive... or perhaps there is another explanation. The best thing to do, although it's your decision of course, would be to send a copy to the BBC and/or Kaleidoscope. If you have trouble getting through to the right person, let me know. On the computer side, it's best to keep some "heavy" copies, don't just save only a 64 kbps mp3 file, that would be a shame. |
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Post by A Barron on Dec 24, 2020 21:01:54 GMT
On one of the tapes I have discovered a recording from an Inter-School Quiz programme called "Question Marks", that was produced by Radio Bristol in the 1970s. I cannot find any record about this programme what so ever. All I know is that I know have an episode of it. There was a BBC program, but then it would have been a recording from 1952: genome.ch.bbc.co.uk/search/0/20?adv=1&media=radio&order=asc&q=%22Question+Marks%22#searchThat would be pretty impressive... or perhaps there is another explanation. The best thing to do, although it's your decision of course, would be to send a copy to the BBC and/or Kaleidoscope. If you have trouble getting through to the right person, let me know. On the computer side, it's best to keep some "heavy" copies, don't just save only a 64 kbps mp3 file, that would be a shame. I can confirm that it was from 1974. |
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Post by A Barron on Dec 26, 2020 20:04:17 GMT
Update:
So far I have only found home recordings and music. I was going to try and do more today however I socially aware up with symptoms of Selenium poisoning and had to go to hospital. I may have ever so slightly opened up the recorder and looked around it before the post about the toxic elements. They kept me there for six hours! They measured my hearts electrical activity three times, they had to prick my finger twice to measure my blood sugar level because apparently I did not bleed well enough the first time. They also took at tested my blood and made me wait with a crazy old drunkard for hours. To make things worse, I am currently fasting to my body reactions and chemicals are not what they normally would be. One of the Nurses had too "Google" Selenium poisoning as apparently they had never had a case of it before. The worst part was, that if I had been poisoned they would have to report it and take away my reel to reel recorder! Thankfully my symptoms were not bad enough for them to want me to say and they were not sure what I should do with the recorder. They told me to come back if my symptoms worsen.
My plan is to clean the outside of the reel to reel recorder and if my symptoms do get worse, go to a different hospital and not mention the machine.
How was your boxing day?
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RWels
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Post by RWels on Dec 26, 2020 21:24:56 GMT
Update: So far I have only found home recordings and music. I was going to try and do more today however I socially aware up with symptoms of Selenium poisoning and had to go to hospital. I may have ever so slightly opened up the recorder and looked around it before the post about the toxic elements. They kept me there for six hours! They measured my hearts electrical activity three times, they had to prick my finger twice to measure my blood sugar level because apparently I did not bleed well enough the first time. They also took at tasted my blood and made me wait with a crazy old drunkard for hours. To make things worse, I am currently fasting to my body reactions and chemicals are not what they normally would be. One of the Nurses had too "Google" Selenium poisoning as apparently they had never had a case of it before. The worst part was, that if I had been poisoned they would have to report it and take away my reel to reel recorder! Thankfully my symptoms were not bad enough for them to want me to say and they were not sure what I should do with the recorder. They told me to come back if my symptoms worsen. My plan is to clean the outside of the reel to reel recorder and if my symptoms do get worse, go to a different hospital and not mention the machine. How was your boxing day? Apart from, obviousy, concerns about your health I am also extremely surprised that an old reel to reel could be so dangerous, since you have not eaten it. I can only guess that the part that blew might have contained selenium which then became airborne??? Google mainly leads to people who took the wrong supplements. So... you okay? |
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Post by A Barron on Dec 26, 2020 21:47:33 GMT
Update: So far I have only found home recordings and music. I was going to try and do more today however I socially aware up with symptoms of Selenium poisoning and had to go to hospital. I may have ever so slightly opened up the recorder and looked around it before the post about the toxic elements. They kept me there for six hours! They measured my hearts electrical activity three times, they had to prick my finger twice to measure my blood sugar level because apparently I did not bleed well enough the first time. They also took at tasted my blood and made me wait with a crazy old drunkard for hours. To make things worse, I am currently fasting to my body reactions and chemicals are not what they normally would be. One of the Nurses had too "Google" Selenium poisoning as apparently they had never had a case of it before. The worst part was, that if I had been poisoned they would have to report it and take away my reel to reel recorder! Thankfully my symptoms were not bad enough for them to want me to say and they were not sure what I should do with the recorder. They told me to come back if my symptoms worsen. My plan is to clean the outside of the reel to reel recorder and if my symptoms do get worse, go to a different hospital and not mention the machine. How was your boxing day? Apart from, obviously, concerns about your health I am also extremely surprised that an old reel to reel could be so dangerous, since you have not eaten it. I can only guess that the part that blew might have contained selenium which then became airborne??? Google mainly leads to people who took the wrong supplements. So... you okay? Oh I am fine. Selenium was never confirmed to be in the player or in my body, this was just to be sure I am fine, which I appear to be. The thing is, I have about 8 symptoms which can also be easily explained away as coming from: preexisting medical conditions, fasting, bad sleeping position and what I ate yesterday. It was almost certainly nothing but the hospital now knowing anything about Selenium poisoning wanted to be sure. |
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Post by Dan S on Dec 27, 2020 10:51:09 GMT
Update: So far I have only found home recordings and music. I was going to try and do more today however I socially aware up with symptoms of Selenium poisoning and had to go to hospital. I may have ever so slightly opened up the recorder and looked around it before the post about the toxic elements. They kept me there for six hours! They measured my hearts electrical activity three times, they had to prick my finger twice to measure my blood sugar level because apparently I did not bleed well enough the first time. They also took at tasted my blood and made me wait with a crazy old drunkard for hours. To make things worse, I am currently fasting to my body reactions and chemicals are not what they normally would be. One of the Nurses had too "Google" Selenium poisoning as apparently they had never had a case of it before. The worst part was, that if I had been poisoned they would have to report it and take away my reel to reel recorder! Thankfully my symptoms were not bad enough for them to want me to say and they were not sure what I should do with the recorder. They told me to come back if my symptoms worsen. My plan is to clean the outside of the reel to reel recorder and if my symptoms do get worse, go to a different hospital and not mention the machine. How was your boxing day? Apart from, obviousy, concerns about your health I am also extremely surprised that an old reel to reel could be so dangerous, since you have not eaten it. I can only guess that the part that blew might have contained selenium which then became airborne??? Google mainly leads to people who took the wrong supplements. So... you okay? When he said they tasted his blood I assumed the entire post was an attempt at humour. |
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Post by Stephen Byers on Dec 27, 2020 13:52:34 GMT
There was a BBC program, but then it would have been a recording from 1952: genome.ch.bbc.co.uk/search/0/20?adv=1&media=radio&order=asc&q=%22Question+Marks%22#searchThat would be pretty impressive... or perhaps there is another explanation. The best thing to do, although it's your decision of course, would be to send a copy to the BBC and/or Kaleidoscope. If you have trouble getting through to the right person, let me know. On the computer side, it's best to keep some "heavy" copies, don't just save only a 64 kbps mp3 file, that would be a shame. I can confirm that it was from 1974. It may not be in Genome - since this is mainly for London (or maybe Home Counties). How do you know it is from 1974? Best of course is WAV (raw and unedited - uncompressed) - that's for backups prior to editing out unwanted clips. After editing recordings can then be saved as FLAC (uncompressed). After which MP3s can be burnt. Please do not use low bit rates for MP3s. We use a min of 192 kbps for speech, and a min of 320 kbps for music. |
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Post by A Barron on Dec 27, 2020 14:11:28 GMT
Apart from, obviousy, concerns about your health I am also extremely surprised that an old reel to reel could be so dangerous, since you have not eaten it. I can only guess that the part that blew might have contained selenium which then became airborne??? Google mainly leads to people who took the wrong supplements. So... you okay? When he said they tasted his blood I assumed the entire post was an attempt at humour. Sorry "Tested my blood". I am dyslexic. Although the post is completely true, I was trying to frame it in a humours light, as to make something fun out of something so very very boring. |
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Post by A Barron on Dec 27, 2020 14:16:14 GMT
I can confirm that it was from 1974. It may not be in Genome - since this is mainly for London (or maybe Home Counties). How do you know it is from 1974? Best of course is WAV (raw and unedited - uncompressed) - that's for backups prior to editing out unwanted clips. After editing recordings can then be saved as FLAC (uncompressed). After which MP3s can be burnt. Please do not use low bit rates for MP3s. We use a min of 192 kbps for speech, and a min of 320 kbps for music. It is labelled 1974, features a lot of talk about the state of the European Union which sounds right for around 1974 and it has someone in it who I am in contact with and has confirmed it was around 1974. |
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