According to www.rcaselectron.com RCA made 9, 256, 1024 and 4096 bit
versions of the Selectron tube.
I don't know if any of them other than the 256 bit made it into production.
4096 Bit Selectron Pics http://www.rcaselectron.com/sel4096.html (4 by 1024)
1024 Bit Selectron Pics http://www.rcasel
On Thu, Jan 6, 2022, 01:20 Joshua Rice via cctech
wrote:
>
> Not cost effective at nearly $10,000! I understand they're very rare,
> given they were only used for a few years in industry and they're
> clocking on 3/4 of a century old, but even then, that seems an order of
> magnitude or two off t
On Thu, Jan 6, 2022, 08:45 Mike Katz via cctalk
wrote:
> There was also a 1K by 4 version of this tube.
>
I've never seen any info on a 1K*4 Selectron, but they weren't even able to
make the 4K*1 work, and the only production tubes were 256*1.
> On Jan 6, 2022, at 2:11 PM, Chuck Guzis via cctalk
> wrote:
>
> On 1/6/22 10:17, William Donzelli wrote:
>> If you include prototypes, then you need to include ALL the prototypes
>> - even things made in single quantities that never worked.
>>
>> That is a HUGE amount of stuff that makes E
On 1/6/22 10:17, William Donzelli wrote:
> If you include prototypes, then you need to include ALL the prototypes
> - even things made in single quantities that never worked.
>
> That is a HUGE amount of stuff that makes EBAM look gigantic.
To be fair, EBAM received a not-insignificant amount of
Prototypes don't count.
--
Will
On Thu, Jan 6, 2022 at 12:41 PM Chuck Guzis via cctech
wrote:
>
>
> Perhaps even rarer were the EBAM tubes that CDC worked with during the
> 1970s. I recall seeing a 6' rack of a complete assembly sitting in a
> hallway at ADL around 1974. If CDC followed the di
Perhaps even rarer were the EBAM tubes that CDC worked with during the
1970s. I recall seeing a 6' rack of a complete assembly sitting in a
hallway at ADL around 1974. If CDC followed the dictates of management
then, the unit was probably utterly demolsihed before being sold as
scrap metal.
--
46-50, they are a
very interesting and notable development attempt.
-- Original Message --
From: "pbirkel--- via cctalk"
To: "'General Discussion: On-Topic Posts'"
Sent: Wednesday, 5 Jan, 2022 At 17:35
Subject: Memory Tech you don't see very often
Selec
> On Jan 6, 2022, at 4:06 AM, Brent Hilpert via cctalk
> wrote:
>
> On 2022-Jan-06, at 12:19 AM, Joshua Rice via cctech wrote:
>> Not cost effective at nearly $10,000! I understand they're very rare, given
>> they were only used for a few years in industry and they're clocking on 3/4
>> of
lopment attempt.
> -- Original Message --
> From: "pbirkel--- via cctalk"
> To: "'General Discussion: On-Topic Posts'"
> Sent: Wednesday, 5 Jan, 2022 At 17:35
> Subject: Memory Tech you don't see very often
> Selectron Vacuum Tube: http
ting edge technology of the
time.
Would be interesting to know how many hours it's got on it
-- Original Message --
From: "pbirkel--- via cctalk"
To: "'General Discussion: On-Topic Posts'"
Sent: Wednesday, 5 Jan, 2022 At 17:35
Subject: Memory Tec
lopment attempt.
> -- Original Message --
> From: "pbirkel--- via cctalk"
> To: "'General Discussion: On-Topic Posts'"
> Sent: Wednesday, 5 Jan, 2022 At 17:35
> Subject: Memory Tech you don't see very often
> Selectron Vacuum Tube: http
Selectron Vacuum Tube: https://www.ebay.com/itm/174977901251
Really nice photo-shoot! I wonder what the back-story to this particular
tube might be.
I don't think that $16.18 shipping would be, um, adequate protection by any
measure.
Cheap, but not so sure about "cost-effective" .
---
13 matches
Mail list logo
