AC3-RF Mod: Who does these anymore..Kurtis?

[NJM1]

About to upgrade my reciever for the new audio formats and want to preserve
playabilty of my 704 and other players.

I recall seeing years ago a mod to these machines so one could simply use a
coaxial in for AC3.

Help, anyone???

Thanks in advance

[Kurtis Bahr]

If you have a 704 then you are looking for an AC-3 RF Demodulator. You can
fine those on eBay.

The LD player modifications are to install the AC-3 RF output to the older
players. The CLD-D704 already has that. There are schematics and I still
install this in older players.

There was a company, Precision Laserdisc, that developed a AC-3 RF
Demodulator board you could put inside your players also but this and the US
company then vanished. I still wonder if this was for copyright reasons.

Just go to eBay and search for AC-3 RF Demodulator. Some are simple
demodulators and some are switchers that you connect both the digital output
and the AC-3 RF from the LD player to. If an AC-3 signal is present it
passes that to the receiver, If the AC-3 RF is nor present it passes the
signal from the digital output.

Kurtis

"NJM1" <vze3...@verizon.net> wrote in message
news:BZAOi.3844$h33.931@trndny02...

[Stephen]

http://www.bde.de has kits to add rf and digital outputs.

Stephen

On Tue, 9 Oct 2007 21:25:46 -0400, "Kurtis Bahr" <kb...@comcast.net>
had a flock of green cheek conures squawk out:

--

[Kurtis Bahr]

I believe BDE is the European parent company to Precision Laserdisc. If you
look they do still sell the AC-3 RF kits but not the internal AC-3 RF
demodulator board you can add to players. They do sell standalone AC-3 RF
demodulators and boards to add a standard coax digital output to the player
if not there. There was a short period Precision Laserdisc sold and shipped
the AC-3 RF demodulator boards but then quickly shut down the US site and
disappeared, I repaired a CLD-97 that had one of these boards in it.
Problem is that they were not switching boards so you had one digital cable
going to the receiver for AC-3 and another for PCM and DTS. I prefer my
external switching AC-3 demodulator.

Kurtis

"Stephen" <y...@its.invalid> wrote in message
news:17upg3ljtfndsnbad...@4ax.com...

[NJM1]

Thanks for the responses..

I was hoping for an internal, but I yield to Kurtis' point of view. Your
reputation here is flawless.

"Kurtis Bahr" <kb...@comcast.net> wrote in message
news:vqKdnd5A8KYi_pDa...@comcast.com...

[Wendell Dingus]

Interesting discussion I've stumbled onto here it seems...

BDE was our partner and hardware supplier. Benedikt is still selling
laserdisc and other modifications from Germany. Do check out his site:
http://www.bde.de/

No conspiracies, no copyright problems. We sold AC-3 RF mods (and a few
related items) for almost 5 years. Related business ventures fell on hard
times and we folded up shop, simple as that.

The CLD-97 was probably my all time favorite LD player. Great looks and a
pleasure to work on (AC-3 modding). Our RF out kit was always meant to be
that and only that, a provider of an AC-3 "RF" output. Most receivers/
decoders of the day had RF demodulators built-in so you wired once for
Dolby Digital AC-3 and once for a PCM digital (or DTS) signal. The
demodulator was unfortunately one of the first things to go from most
decoders/receivers though.

For a much shorter time we also sold an internally-installable RF
demodulator from Sample Rate Systems.

As a matter of fact I was recently doing some "spring cleaning" and
stumbled across a few items some of you may be interested in.

(2) LD-3 AC-3 RF out kits (LD-3 is adjustable, used to charge a bit more
for it)
(2) AC-3 RF Demodulator boards from Sample Rate
(12) 6-Channel Input boards
(1) CLU digital switcher

All but the RF demod are described on BDE's website. He now sells a
version of the CLU with the RF demod board included, I simply have some
of the raw boards which could be installed inside an LD player or
receiver.

Shoot me an email if you're interested in any of these.

Thanks.