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-   -   Telefunken color roundie? (http://www.videokarma.org/showthread.php?t=33603)

Charlie 03-10-2005 12:20 PM

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A quick look at the mask looks identical to a Curtis Mathes roundie... also an RCA clone. Looks like the only thing different is the name at the bottom center.

My current location: Columbia River, Kalama, Washington State

yagosaga 03-10-2005 02:35 PM

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Quote:

Originally Posted by Charlie
A quick look at the mask looks identical to a Curtis Mathes roundie... also an RCA clone. Looks like the only thing different is the name at the bottom center.

Thank you very much, this is exactly the same design.
Quote:

Originally Posted by old_tv_nut
A "simple" PAL receiver does not have the delay line that produces electrical averaging of successive lines. Don't know if any simple PAL sets are made these days.

The only simple PAL set I know is the Kuba Portacolor (1967). It has a tint control at the back.

robert1 03-26-2005 11:40 PM

Quote:

Originally Posted by yagosaga
The only simple PAL set I know is the Kuba Portacolor (1967). It has a tint control at the back.

that Kuba is G.E portacolor with a different chassis. it appears to be using the original G.E crt & convergence yoke.
it also looks like it is using the original G.E case & knobs

yagosaga 03-27-2005 12:56 PM

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Quote:

Originally Posted by robert1
that Kuba is G.E portacolor with a different chassis. it appears to be using the original G.E crt & convergence yoke.
it also looks like it is using the original G.E case & knobs

Yes. The flyback is G.E., the y delay line and the tuner is G.E. too. And the hv rectifier is an original Compactron tube while all the other tubes (except the crt) are European tubes.

domfjbrown 03-29-2005 06:27 AM

Quote:

Originally Posted by old_tv_nut
My last encounter with 50 Hz pictures was on a hotel set, and I found that I saw flicker mainly in large white areas. The strangest thing about the program was that it was a rerun of Startrek, which of course I had seen previously in NTSC, and the speedup of the film from 24 fps to 25 fps gave Captain Kirk's intro "...to Bravely go where no man has gone before." a distinct adolescent squeek.

He he he - yep, I first noticed the 24-25 fps speedup when I'd taped "Weird science" off the telly (1991-ish?). The bit when Gareth and Wyatt get slushied at the mall has "Tesla girls" by OMD faintly audible in the background. I'd just got "The best of OMD" on CD (having only had a CDP for about 3 months) and I instantly noticed the 4% pitch increase - and figured it was an error. I didn't find out until a couple of years later that film ran at 24fps (non-interlaced).

I can see flicker in the cinema fairly easily on some films...

BTW - it's more sharp outlines (like chrome trim on cars, etc) that show up flicker to me solid white bands aren't so bad, but large areas of red and green, even on RGB from a DVD, flicker like a mare to my eyes!

The best tricks when you have nystagmus though are these:
Red and blue (e.g. pyjamas, a painting, etc) in bright light (natural or incandescent) - the blue flickers REALLY badly!
Red LED displays (such as 1980s clock radios) - in a dark room with very low ambient light (e.g. moonlight through curtains), the LED numbers will float around the room while the background stays put.

The only thing I can think of is that nystagmus is more active on colours than b&w (maybe something to do with the different ways the eye detects chroma over luma) - very weird indeed!

Anyone who says "I'm blind without my glasses" or whatnot usually gets an automatic "whatever" out of me :)

daro 10-10-2005 05:46 PM

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I own an Grundig TV of 1994 vintage & It is 100Hz PAL & SECAM (120Hz NTSC) & the colour is fantastic on both PAL & NTSC I don't know what the picture would look like on SECAM as there is no sources of that signal can be found. I feed my video signals as S-VHS thus getting rid of the chroma Lum interference problems with PAL & NTSC alltogether, I do find the colours on NTSC tend to be better then on PAL.

Carmine 10-10-2005 08:26 PM

Forget all this mumbo jumbo... The real problem is the way you blokes spell:

C o L o R

:banana:

As long as I can see my Coronation Street in NTSC, that's all that matters. :thmbsp:

TVtommy 10-20-2005 09:24 PM

Working for a UK based company here in the states in the early '90's gave me my first exposure to PAL. One of the companies sales people found out that I did TV work and asked if I serviced British sets . I replied "not yet". He had a Ferguson 13" color portable and a Panasonic muti-standard vcr he used to view soccer game tapes his brother would send him ( the vcr would not output a useable ntsc picture with a pal tape). The Ferguson lacked a/v inputs and had developed an intermittant rf problem. He brought me the set to repair along with an autotransformer and attached UK power stip to power the set and the vcr as a signal source. The only problem in the set turned out to be a poor solder connection (thank goodness - no documentation avail. on this side of the big pond). It surprised me to find a power xfmr in a port. set which made it pretty heavy. I was also surprised to find it would pick up off air local channel 15 but of course no color or sound but good synch! Honestly, the set performed well with the taped programs but with all the normal vhs limitations. I wish I had a pal broadcast signal to judge by. I have always found a tint control to be handy when trying to get a "good" picture on a set with with a marginal crt and gray scale tracking problems. I remember, back in the bad old days (60's -70's), a tint(hue) control could get more work out than the volume knob. This was not only station to station but also program to program (remember the repairman saying "don't go by commercials for adjustment"?). These days it seems like if you have to adjust the hue at all it's a set and forget thing unless one of the guns start to take a dump and you ain't got time or funds to fix it. I saw my first color tv in 1966 and here 39 years later I can say "NTSC, you've come a long ways baby". I kinda happy with it, especially considering the limited amount of viewing time I have. I hedging my bets though. I just picked up a 46" widescreen HDTV for $300!!!! It's a mexican set that they left the crt grounds off of and it looks like I'm still $300 away from HDTV nirvana. It'll still never replace my love for ntsc or my roundies, or my Chromacolors, or my CTC-68's..................

Jonathan 10-22-2005 12:55 AM

Most of the color problems are non existant with S-video. Most D/A converters and RGB encoders produce very nice quality NTSC and PAL signals. Just look at DVD players, satellite receivers, video games, etc, which produce very nice quality video that looks pretty decent on most TVs.

Jonathan


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