| Pat <forums@greensdomain.com>: Jan 10 08:55AM -0500 >> > > I have a ford ranger and the cassette player has a lot of static the radio >> > > plays fine.I have demagnetizer and cleaning tapes I was thinking of using >> > > acetone on the heads? As other have pointed out, the OP made his request almost 19 years ago, but since everyone here seems to be discussing the merits of various head cleaning methods, I have a question. How can "static" be a symptom of dirty tape heads? Drop outs - yes. Loss of highs - yes. Static? Sounds more like a bad connection or static electricity being generated somewhere. |
| Ralph Mowery <rmowery28146@earthlink.net>: Jan 10 10:37AM -0500 In article <312172279568800599.965334zekor-comcast.net@news.eternal- september.org>, zekor@comcast.net says... > Heads have some insulating material imbedded. Real rubbing alcohol is > supposed to have oil to prevent skin drying too much. Most don't. Isopropyl > or ethyl cleans heads. Rubbing alcohol seems to be a gernetic term by many. One form is about 70% alcohol and some oils and water. You can buy some that is about 90% alcohol and 10 % water with no other oils in it. I have some here labled 91 % and some labled 99%. They are isoprople alcohol and not labled rubbing alcohol. Alcohol absorbs water from the atmosphere so before long the 99% will be much less if open to the air. Xylene was used at one time to clean the tape machinery. I am not sure if it is in the stores any more or not. |
| Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Jan 10 10:45AM -0500 On 1/10/19 10:37 AM, Ralph Mowery wrote: > less if open to the air. > Xylene was used at one time to clean the tape machinery. I am not > sure if it is in the stores any more or not. Some rubbing alcohol is 80% isopropyl and 20% water. That has very different properties, and will craze acrylics instantaneously. It also leaves residues that cause enormous amounts of 1/f noise in front end circuits. Everclear is much better controlled. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net |
| Fox's Mercantile <jdangus@att.net>: Jan 10 10:01AM -0600 On 1/10/19 9:37 AM, Ralph Mowery wrote: > Rubbing alcohol seems to be a gernetic term by many. > One form is about 70% alcohol and some oils and water. Or you can just buy Denatured alcohol. > Xylene was used at one time to clean the tape machinery. I am not sure > if it is in the stores any more or not. It is available in the paint section. -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Jan 10 05:51AM -0800 I keep a 3000 and a 5000, and for years I distributed them at Kutztown for Phil Bolyn, the developer. In my opinion, they are the ne plus ultra of amateur hobby AM transmitters. I will state for the record, that most (not all) of the stuff you will find on eBay is either junk, too powereful, or too weak to be useful. http://www.talkinghouse.com/ These are often sold at Kutzown, already adapted for a stereo input. They have the virtue of being frequency agile, and rather simple to operate, but as-furnished, they do not allow for much signal processing. Their more expensive version does allow for such signal processing, as well as a considerably extended dynamic range. It is all in accordance with what you wish to achieve. Considering that back in the day, those transmitters were capable of broadcasting across the full audio band, but given the need to carry, and not step on adjacent frequencies, they pretty much limited the bandwidth to ~100 - ~5000 hz, often considerably less both ways. Whereas the receiving radios were capable of getting the entire audio bandwidth. Note that the SSTRAN is rated at 20-20K, and after using it, other transmitters will sound quite thin. Peter Wieck Melrose Park, PA |
| Fox's Mercantile <jdangus@att.net>: Jan 10 08:16AM -0600 > I will state for the record, that most (not all) of the stuff > you will find on eBay is either junk, too powerful, or too > weak to be useful. As a friend of mine's brother in law so appropriately put it, "Pay shit, get shit." -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com |
| amdx <nojunk@knology.net>: Jan 10 09:30AM -0600 >> wanted to let people know what I do, and to make them aware of the old >> radio programs available over the internet. Listening to Dragnet as I >> write, on an FM radio! I meant to say, I wasn't oblivious to your requirement, you made it clear you wanted AM. > Aside from not being AM, I plan to give that link a listen. Sounds like > fun listening to those old radio shows. (By the way, those shows were > probably all broadcast on AM. FM did not exist at that time). Yes, check into it, there are at least 6 different internet broadcasts of old radio shows, probably more. |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Jan 10 06:09AM -0800 Some things: Quality of the core material. Care and bulk of wiring. Frequency range to be covered. Power requirements. After which, like anything else, all about materials wound on the thighs of virgins on Walpurgis Night. Peter Wieck Melrose Park, PA |
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