arsclist Re: [AMIA-L] Dolby and unintended consequences

["Richard L. Hess" <ArcLists@xxxxxxxxxxxxxxx>]

I received further clarification from Tim Stoffel re: Dolby on videotape 
formats. At least it seems there is a maintenance mode for playing those 
oxide Beta tapes in whatever Dolby mode you want.

I hope someday Tim will join the AMIA and ARSC lists!

Thanks, Tim!!!

Cheers,

Richard

> Richard,
>     I have the Dolby processor for the VPR-3, and I believe they sold
> kits allowing it to be adapted to other machines as well. (The VPR-3 may
> have had this adaptor connector stock.) There was also a dolby 'A' card
> available for the VR-2B that probably replaced the factory audio card.
> PBS would lend these out to stations submitting material to them on 1
> inch.
>     The Beta story is a bit complex. On the old, oxide Beta tapes, you
> could manually switch the Dolby function on and off, on the front panel.
> it was up to the user to remember whether or not they used Dolby. On the
> newer SP tapes, Dolby ws part of the improved standard. So, the Dolby
> could not be switched off unless you have the machine in a maintenance
> mode. Both the SP tape type and the required Dolby, were indeed detected
> (together) by a hole in the cassette shell. The SP sense hole is located
> just behind the tape access opening, in the center between the reels.
>
>
> Hope this helps!
> Tim Stoffel
>
>
> --
> !!!! LION-LAMB ENGINEERING, Tim Stoffel, proprietor !!!
> ! also QUADRUPLEX PARK museum of broadcast technology !
> !   Behold...The Lion of Judah...The Lamb of God...   !
> !      has overcome!... (Rev. 5:5-6 paraphrase)       !
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


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