[QuadList] RCA TR 5 on eBay

Sun Feb 19 15:02:48 CST 2012

I kind of cheated,
I used a pre-striped tape and kept the original control track.
The servo continued as if it were in playback but the signal processing
switched into record.
The erase head came on about 500 ms before the recording started.
I literally filed away the control track portion of the erase head and
filled it in with epoxy.
Then I glued on a separate erase head for the control track for normal use.
I put a blip on the cue track where I wanted the edit.
Then I out-boarded a cue-track read head near the erase head  to start the
whole process.
In the time-lapse mode, the edit would erase the old blip and record a new
one a frame later.
As I recall the machine had to lock up color framed rolling into the edit
or it would back up and try again.
The whole time-lapse thing was a one-trick setup, but once started you
could just sit back
and watch it roll back, roll in, edit, rinse, repeat.
Hey, I was a college kid with a lot of free time on my hands, what can I
say?

On Sun, Feb 19, 2012 at 3:20 PM, <Chill315 at aol.com> wrote:

> **
> So I have to ask,
>
> Were these color framed or not?
> Did you use time code?
> How do you know that it did not overwrite an earlier edit?
>
> Chris Hill
>
>  In a message dated 2/19/2012 1:35:46 P.M. Eastern Standard Time,
> dave at zfx.com writes:
>
> Obviously new high band head and preamp,
> playback eq's changed
> mod/demod mods
> and significant re-building the record amplifiers.
> Theres a lot of non-obvious spectrum magic that takes place in those
> record amps!
> And I built an editor that could do single-frame edits for it too!
> Here is my test run, 1275 consecutive off-the-air single-frame edits all
> perfect!
> (Unfortunately this is from a 3/4" dub, I didnt' save the original.)
> http://vimeo.com/5567846
> Makes for a real time-capsule!
>
> On Sun, Feb 19, 2012 at 1:29 PM, David Crosthwait <david at dcvideo.com>wrote:
>
>>     Dave,
>>
>> Other than the TBC, what was involved with the high-banding effort?
>> Mod/demod/filters? Updated head wheel/pre-amps? Was this a home-brew
>> effort? Regardless, hats off  to you!
>>
>> David
>>
>> david at dcvideo.com
>> www.dcvideo.com <http://dcvideo.com/>
>>
>>
>>
>>  On Feb 19, 2012, at 8:29 AM, Dave Sieg wrote:
>>
>> I high-banded one once a long time ago.
>> We used a CVS TBC with the switching mod to play it back.
>> Its slightly easier to move around than a TR4.
>> The lack of monitoring is kind of inconvenient.
>>
>>
>> On Sun, Feb 19, 2012 at 11:24 AM, <chill315 at aol.com> wrote:
>>
>>>  I had one of these and they were good low band recorders.  This one
>>> has an editor in it.  The alignment tape would be nice to have.  This
>>> machine was used for winding tapes because it was not high band.  It also
>>> served as a spare parts bin for the TR-60 we had.  Control modules, and
>>> servo amps were the same.  And you get the book.
>>>
>>> Chris Hill
>>>
>>> On Feb 19, 2012, at 10:59 AM, David Crosthwait <david at dcvideo.com>
>>> wrote:
>>>
>>>  EBay item: RCA TR 5 in Arizona.
>>>
>>> Ed, gas up the van and head to Tucson!
>>>
>>>
>>> http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=290672745960&ssPageName=ADME:B:SS:US:1123#ht_533wt_1398
>>>
>>>
>>>    Regards,
>>>
>>> David Crosthwait
>>> DC Video
>>>
>>> david at dcvideo.com
>>> www.dcvideo.com <http://dcvideo.com/>
>>>
>>> Follow DC Video on Facebook: https://www.facebook.com/dcvideo
>>>
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>>>
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>>
>>
>>
>> --
>> Dave Sieg
>> www.linkedin.com/in/davesieg
>> www.davesieg.com
>> www.scanimate. <http://www.scanimate.net/>com
>>
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>
>
>
> --
> Dave Sieg
> www.linkedin.com/in/davesieg
> www.davesieg.com
> www.scanimate. <http://www.scanimate.net/>com
>
>
>
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-- 
Dave Sieg
www.linkedin.com/in/davesieg
www.davesieg.com
www.scanimate. <http://www.scanimate.net>com
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