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General Discussion / Re: Full track playback with two track heads
« Last post by cvandyke on May 21, 2018, 08:30:11 am »
I did receive it but haven't had a chance to try it. I'm in the process of moving and somehow misplaced it. Grrr. I'll report back when it turns up.
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General Discussion / Re: Full track playback with two track heads
« Last post by Waltzingbear on May 20, 2018, 01:06:29 pm »
have you received it yet and had a chance to try it?

I am concerned that it won't be sensitive enough to see the detail of the channels at 350nW/m

Cheers
Alan
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Reel to Reel Tape Machines / Re: Otari MTR-20 manual
« Last post by johnnytorch on May 12, 2018, 09:52:43 am »
Does anyone know the location of this manual?

Thanks,
John
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General Discussion / Re: Full track playback with two track heads
« Last post by cvandyke on April 24, 2018, 12:18:52 pm »
This might work: www.ebay.com/itm/122438609117

I ordered one and will report back once I have a chance to try it out. It ships from the UK so it may be a few weeks. The total cost was about $6.
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General Discussion / Re: Full track playback with two track heads
« Last post by High and Outside on April 23, 2018, 11:36:58 pm »
Another question about this general subject: is there a reasonable way to determine if a tape labeled "mono" was recorded as full track or two track mono? The tapes I have so far are labeled so it's clear but it seems likely I'll face this issue in the future.

The only way I can think of is to use one of those magnetic viewers--that's a thing you place over the tape and gradually an image appears of the magnetic information.

I don't know of any currently being made, and I rarely see them for sale though. I was lucky to pick one up several years ago when Fred Thal had a few for sale. Anybody else have a lead on one?
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General Discussion / Re: Full track playback with two track heads
« Last post by cvandyke on April 18, 2018, 09:19:05 am »
Thanks! I didn't particularly like the bass on the mono tapes I played and I hope this is the cause. The tapes are production masters which contain transfers from 78 sides so it's just as likely be the recording.

Another question about this general subject: is there a reasonable way to determine if a tape labeled "mono" was recorded as full track or two track mono? The tapes I have so far are labeled so it's clear but it seems likely I'll face this issue in the future.

I do have a mono repro head for my deck (Otari MTR10). I need to mount it and to figure out how I want to handle routing the signal from the head. I really don't want to make any non-reversible changes, have an awkward cable dangling, or put a switch in the signal path. I've already spent some time pondering how to proceed and, so far, I've come up empty.
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Suggestion Box / Re: A great Suggestion !from the 70;s
« Last post by astrotoy on April 14, 2018, 09:44:01 pm »
PM me.   Larry
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Kostas,

There are two outfits currently making the type of heads we need for audio.

AM Belgium is a pretty large company, with most of their business in data, credit card scanners and other fields. But they do make--and have made for years--audio heads.

Flux Magnetics in California make very high quality audio heads, and audio heads are their only business.

Good luck with your new machine.
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General Discussion / Re: Cello Palette
« Last post by High and Outside on April 13, 2018, 10:31:57 am »
This is a forum dedicated to reel to reel tape. It might not be the best place to look for help on two pieces of gear that aren't involved in tape playback.

In case you haven't contacted them already, you might get some help from Mark Levinson's current company: Daniel Hertz S.A. in Switzerland.
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General Discussion / Re: Full track playback with two track heads
« Last post by High and Outside on April 13, 2018, 10:26:53 am »
Chris,

One other thing happens, which is generally considered a downside but someone might prefer it in some circumstances.

Whenever you play back a wide track recording on a narrower band playback head it is subject to a phenomenon called "fringing." The effect is to raise the low frequency content several dB above the balance that was recorded.

What happens is that the recorded portion that lies outside the track width of the playback head adds its low frequency content to the part that is picked up normally. It's like pushing the Loudness button, except that you can't turn it off if you don't like the effect.
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