« previous next »
Pages:  [1]     Go Down

Author Topic: Vintage HP  (Read 2313 times)

0 Members and 1 Guest are viewing this topic.

Offline didjamatic

  • Thread Starter
  • Posts: 1352
Vintage HP
« on: Mon, 05 April 2010, 14:03:48 »
Vintage HP 85-B Computer - check keyboard pics.


Logged
IBM F :: IBM M :: Northgate :: Cherry G80 :: Realforce :: DAS 4

Offline ch_123

  • * Exalted Elder
  • Posts: 5860
Vintage HP
« Reply #1 on: Mon, 05 April 2010, 14:07:53 »
Those look like the switches used in the DEC VT-100. Inside the plastic border there are two arms with electrical contacts on them. The depression of the border causes the two arms to move together until they meet and the circuit is made.

Did I mention that they're boring linear switches?
Logged

Offline didjamatic

  • Thread Starter
  • Posts: 1352
Vintage HP
« Reply #2 on: Mon, 05 April 2010, 14:12:59 »
Ah, same concept as Space Invader Switches then.

Logged
IBM F :: IBM M :: Northgate :: Cherry G80 :: Realforce :: DAS 4
Pages:  [1]     Go Up
« previous next »