Unfortunately, I have not seen such a drum.
The device in question though really looks RF-ish to me. The feedthrough caps
suggest DC control voltages that might bias the diodes to switch any port to
the center and then there’s some matching going on with the meandering inductor
on the PCB
On 01/17/2020 06:04 AM, Guy Dunphy via cctalk wrote:
Someone wanted those coax signals to all be very precise
and coincident. Now where... Oh yes, 'physics packages.'
My guess - nothing to do with computers, but rather an
implosion detonator for a nuke.
No, they used equal length coax cables
On 2020-Jan-17, at 4:04 AM, Guy Dunphy wrote:
> At 02:22 AM 17/01/2020 -0800, you wrote:
>>
>> On 2020-Jan-17, at 12:11 AM, William Maddox on CCTalk via cctalk wrote:
>>
>>> The seller thinks this may be a drum memory, but it is clearly not. My
>>> guess is that it is some kind of clock
At 02:22 AM 17/01/2020 -0800, you wrote:
>
>On 2020-Jan-17, at 12:11 AM, William Maddox on CCTalk via cctalk wrote:
>
>> The seller thinks this may be a drum memory, but it is clearly not. My
>> guess is that it is some kind of clock generator. Anyone recognize this?
>>
>>
> On 1/17/2020 12:11 AM, William Maddox on CCTalk via cctalk wrote:
>> The seller thinks this may be a drum memory, but it is clearly not.
>> My guess is that it is some kind of clock generator. Anyone recognize
>> this?
One candidate is the high-speed drum from the STAR (early Cyber 200's)
On 01/17/2020 02:11 AM, William Maddox on CCTalk via cctalk
wrote:
The seller thinks this may be a drum memory, but it is
clearly not. My guess is that it is some kind of clock
generator. Anyone recognize this?
device on eBay -- CDC clock generator?
On 2020-Jan-17, at 12:11 AM, William Maddox on CCTalk via cctalk wrote:
> The seller thinks this may be a drum memory, but it is clearly not. My
> guess is that it is some kind of clock generator. Anyone recognize this?
>
> https://www.ebay.com
On 2020-Jan-17, at 12:11 AM, William Maddox on CCTalk via cctalk wrote:
> The seller thinks this may be a drum memory, but it is clearly not. My
> guess is that it is some kind of clock generator. Anyone recognize this?
>
>
I have several TEK boards like these. I thought they were delay lines to
keep signals in sync. I had a friend
tell me what he thought they were, but I'll have to call him to refresh me
feeble memory.
On Fri, Jan 17, 2020 at 2:36 AM jim stephens via cctalk <
cctalk@classiccmp.org> wrote:
>
>
> On
On 1/17/2020 12:11 AM, William Maddox on CCTalk via cctalk wrote:
The seller thinks this may be a drum memory, but it is clearly not.
My guess is that it is some kind of clock generator. Anyone recognize
this?
The seller thinks this may be a drum memory, but it is clearly not. My
guess is that it is some kind of clock generator. Anyone recognize
this?
https://www.ebay.com/itm/Vintage-Mainframe-Computer-Part-Drum-Memory-Control-Data/312942951497
11 matches
Mail list logo