Re: Weird distorted shapes

Possible, need to try the other part and see.
On Mar 11, 2014 2:50 PM, "Joel Griffin Dodd" <griffindodd@gmail.com> wrote:

> An update on this. I am still waiting on the OEM transistors to arrive.
> But the mean time we were discussing why we thought there may be a
> difference large enough to effect the signal and give us our 'bowing' lines
> as described by Rodger Boots when he said that a slowing signal would have
> that effect...
>
> We compared the specs of the replacement 2N5884 and the Original Motorola
> 2N3716:
>
> 2N5884: http://alltransistors.com/transistor...ransistor=5278<http://alltransistors.com/transistor.php?transistor=5278>
>
> 2N3716: http://alltransistors.com/transistor...ransistor=3504<http://alltransistors.com/transistor.php?transistor=3504>
>
> The only value that we found to be really off is Cc: 800pF for the 5884
> and only 10pF for the 3716.
>
> So the thing that stood out to me was that the extra capacitance in the
> newer replacement may be enough to slow the signal down and cause the
> bowing of the line as it is drawn across the displacement field as
> described by Rodger.
>
> What do we think about that?
>
>
> On Wed, Mar 5, 2014 at 4:41 PM, pj pj <pj1@shaw.ca> wrote:
>
>> At least his vectors are straight... although the video does show a nasty
>> dancing issue only on certain characters/objects (letters, but the death
>> stars are stable). I have a fresh tube NOS thanks to another member in my
>> SW, and the vectors still aren't as square and straight as the ones in the
>> video that was posted. X's and A's are diagonal, HV is relatively solid
>> and dialed in to 19.5KV.
>>
>> Although my screen presentation is really nice and bright, the crooked
>> verticals and overshoot on say the red turrets in the trench scene really
>> bother me. The shields indicator on my game looks like it's laced with
>> velvet rope. On the other hand, the star wars logo and green sloping text
>> on the attract are nearly perfect!
>>
>> Trying this on a WG6100 I have isn't conclusive as the crude dot pitch of
>> the monitor doesn't show anything for certain.
>>
>>
>>
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>
>

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Received on Tue Mar 11 16:22:48 2014