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Service Resources / NAGRA - well how about that!
« Last post by docb on Today at 04:03:29 pm »
Last winter I was approached by Rene Laflamme, sales and marketing manager for Nagra in the US and Canada, about offering service for Nagra high end audio products to US and Canadian customers. After some serious consideration I am proud to announce that we have agreed to take referrals and have begun both service and also restoration work on several decks. We can also help with service on Nagra amps, preamps, etc. From what I can gather some other shops that were known for Nagra service in the past no longer take on work on the tape related gear as their experts retire or otherwise move on. At least that is what our customers have been telling me.

Nagra have been most helpful in providing us with service data and are offering access to what parts they have available for repair. I want to be clear that we're not a free consulting service, and we do not share Nagra intellectual property. Regarding parts for sale, at this time we will stick with providing parts only for repairs that come to us. If, in the future, parts become more readily available we may be able to make some available for sale with Nagra's permission.

If you are anywhere in the world besides the US and Canada please contact Nagra Switzerland for direction to a service resource.

www.nagraaudio.com

Our rate is $125 per hour plus parts. Bench fee is also $125, and includes a diagnosis and baseline measurements for tape machines. Rates are subject to change. You can email me at docb@bottlehead.com for more info.
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General Discussion / Re: Full track playback with two track heads
« Last post by High and Outside on May 26, 2018, 12:32:28 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--

I should have mentioned the more obvious way: play the tape on a 2-track head and see what comes out of the right channel. If the original recording is full track mono you'll hear the same program on the right channel as the left.  If it's half track mono with nothing recorded on the other half, that's what you'll hear on the right channel: nothing. Or practically nothing. If it's half track mono with another program recorded after flipping the tape over then you'll hear that program backwards on the right channel.
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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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