[QuadList] save htis and look tr4 converts to hi band but alsoneed modul...
COURYHOUSE at aol.com
COURYHOUSE at aol.com
Mon Apr 9 01:19:10 CDT 2012
OK! that makes sense!
I have heard about the deck tipping but have not tried thanks for the
warning!
Ed#
In a message dated 4/8/2012 10:59:18 P.M. US Mountain Standard Time,
dlamm1 at neo.rr.com writes:
Just catching up on posts. Did not mean to imply that adding a hi-band
head to a lo-band machine would constitute the complete conversion, it's just
one step. However, doing this on a TR-5 did make the editors more pleased
with the quality of video brought back from remotes.
Hi-banding was an expensive operation for a small station in the 70's. We
had moderate success hi-banding (playback only!) a couple well-used TR-22's
by following a homebrew procedure given to us by some helpful folks at a
Kaiser Broadcasting station in Detroit, where the non-RCA conversion was
probably designed. Widening out the bandwidth of the RF stages was a big part
of the process.
One safety note for anyone working on a TR-5. The deck will raise up about
10 inches in the back, making it easier to slap those heavy 60 min reels
of tape on the machine. There is a potential guillotine hazard if fingers get
caught between the underside of the raised deck and the machine's side
panels; and the deck drops unexpectedly. A single pair of telescoping square
metal tubes with a pushbutton latch are all that supports the raised deck. I
drilled a hole in the lower tube and put a #10 bolt through it whenever
the deck was raised, which was 95% of the time.
The machine in the color photo looks very clean, like it had seldom been
on the road. Just hook the video out to an old monochrome Conrac monitor with
a decent sync separator and playback will be fine for a museum. Consider
showing off the unit with monochrome video in LBM mode, to get away from the
fuzzy appearance of color, due to the lesser-deviated LBC mode and
dot-crawl issues.
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