"This was easily solved with a surplus Tektronix
620 X-Y monitor ($25)."
What is the source for this monitor at 25 bucks?
73 de Bob - KØRC in MN
----- Original Message -----
From: "Steve Ripper" <steveripper@comcast.net>
To: <rtty@contesting.com>
Sent: Wednesday, February 25, 2009 12:17 AM
Subject: Re: [RTTY] ST-8000A on eBay (Tom Osborne)
>I purchased one of the ST-8000A units from this seller and it arrived as
> advertized. Brand new in a foil sealed pouch in the original sealed
> carton.
> Complete with all those expensive connectors and manual. Mine is serial
> number 122 and I believe manufactured in 1991. When you consider these are
> still listed on the HAL site for over $5,000 how can you beat $249. One of
> the differences between the ST-8000 and 8000A as noted by several other is
> the lack of a tuning scope. This was easily solved with a surplus
> Tektronix
> 620 X-Y monitor ($25). Using the data I/O connector J1, I simply took the
> Mark audio output (pin 7) and the Space audio output (pin 9) plus the
> ground
> and connected them to the X-Y inputs of the Tek 620. Note: the raw signals
> levels from the ST-8000A will overdrive the display of the Tek 620, so you
> will have to add 2 pots (1 Meg) to reduce the signal levels. After
> adjusting
> the pots for full screen deflection you have a very nice 6 inch diagonal
> tuning display that I feel is actually much better than the display on the
> ST-8000.
>
> Regards,
>
> Steve Ripper
> steveripper@comcast.net
> Mobile: 248-787-0705
>
> -----Original Message-----
> Message: 1
> Date: Tue, 24 Feb 2009 09:45:30 -0800
> From: "Tom Osborne" <w7why@verizon.net>
> Subject: [RTTY] ST-8000A on eBay
>
> Hi All
>
> Some guys have expressed a like for these TU's. Here is one on eBay, new
> in
>
> box, for $249. Listing number is 140302282476. 73
> Tom W7WHY
>
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