[Vintage-Audio] Re Teac External Dolby Unit

Mon Oct 28 23:06:00 2002

These were made in the early '70s, before "Dolby on a chip" and are still
somewhat in demand today. They can be used on any "standard" consumer grade
reel to reel deck, or a cassette deck that was made before they began
incorporating Dolby "B" as a standard feature. The AN-180 is a two channel
unit, which, if used alone on a 3 head machine, defeats the "instant
monitoring" feature of the third head ( unless you are recording in mono ).
To overcome this, two units can be used at the same time-- one set up for
record, and the other for playback. I would not consider using a reel to
reel  deck without one of these., or something similar. Manuals ( usually
copies ) are sometimes available on e-Bay, as are the AN-180s themselves.
These units require calibration of both record and playback levels on the
deck to match the Dolby units. The AN-180 has a built in tone generator (
front panel push button ) to set up the record levels on the deck. You MUST
use a Dolby calibration tape to set up your playback levels properly. These
were supplied with the unit when new, and are VERY hard to locate, if lost.
Chuck N1LNH
----- Original Message -----
From: "Duane Fischer, W8DBF" <[email protected]>
To: <[email protected]>
Sent: Monday, October 28, 2002 8:54 PM
Subject: [Vintage-Audio] Re Teac External Dolby Unit


>
>
> Hi All,
>
> Does anyone have any information on the Teac model AN-180 external Dolby
unit?
> When made, price, functions and so forth. A manual would be nice, but I am
> probably dreaming there! I found one of these in working condition, dirty
on the
> outside from sitting on a shelf, but chassis looks like new.
>
> Any help will be appreciated.
>
> Duane W8DBF
> [email protected]
>
>
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